Jennings in 2007
Kenneth Wayne Jennings III
May 23, 1974
Edmonds, Washington, U.S.
|Alma mater||Brigham Young University|
|Known for||All-time game show winnings leader (US$5,223,414)|
Jeopardy! The Greatest of All Time champion
Holder of longest Jeopardy! winning streak (74 games)
Former (now 2nd) highest-earning contestant on Jeopardy! (US$4,522,700)
Kenneth Wayne Jennings III (born May 23, 1974) is an American game show contestant and author. He is the highest-earning American game show contestant of all time. Jennings holds the record for the longest winning streak on the U.S. game show Jeopardy! with 74 wins. He also holds the record for the highest average correct responses per game in Jeopardy! history (for those contestants with at least 300 correct responses) with 35.9 during his original run (no other contestant has exceeded 30) and 33.1 overall including tournaments and special events. In 2004, Jennings won 74 consecutive Jeopardy! games before he was defeated by challenger Nancy Zerg on his 75th appearance. His total earnings on Jeopardy! are $5,522,700, consisting of: $2,520,700 over his 74 wins; a $2,000 second-place prize in his 75th appearance; a $500,000 second-place prize in the Jeopardy! Ultimate Tournament of Champions (2005); a $300,000 second-place prize in Jeopardy's IBM Challenge (2011), when he lost to the Watson computer but became the first human to beat third-place finisher Brad Rutter; a $100,000 second-place prize in the Jeopardy! Battle of the Decades (2014); a $100,000 second-place prize (his share of his team's $300,000 prize) in the Jeopardy! All-Star Games (2019); and a $1,000,000 first-place prize in the Jeopardy! The Greatest of All Time (2020).
During his first run of Jeopardy! appearances, Jennings earned the record for the highest American game show winnings. His total was surpassed by Rutter, who defeated Jennings in the finals of the Jeopardy! Ultimate Tournament of Champions, adding $2,000,000 to Rutter's existing Jeopardy! winnings. Jennings regained the record after appearing on several other game shows, culminating with his results on an October 2008 appearance on Are You Smarter Than a 5th Grader?, though Rutter retained the record for highest Jeopardy! winnings and once again passed Jennings' total after his victory in the Jeopardy Battle of the Decades' tournament. In 2020, he once again faced off and won against Rutter, as well as James Holzhauer, in a special primetime series called Jeopardy! The Greatest of All Time.
After his success on Jeopardy!, Jennings wrote about his experience and explored American trivia history and culture in his book Brainiac: Adventures in the Curious, Competitive, Compulsive World of Trivia Buffs, published in 2006.
Jennings was born in 1974 in Edmonds, Washington. His father was a lawyer who worked internationally, and Jennings grew up mainly in Seoul, South Korea. Jennings attended Seoul Foreign School and graduated in 1992 with an International Baccalaureate diploma.
Jennings went to the University of Washington for his first year of university, then spent two years as a volunteer missionary for The Church of Jesus Christ of Latter-day Saints from 1993 to 1995 and was assigned to serve in Spain, becoming fluent in Spanish. After completing his missionary service he transferred from Washington to Brigham Young University, graduating in 2000 with a double major degree in computer science and English literature. While at BYU he played on the school's quizbowl team for three and a half years. One of Jennings' roommates at BYU was future fantasy author Brandon Sanderson.
Streak on Jeopardy!
Before 2003, Jeopardy! contestants were limited to five consecutive games. At the beginning of the show's 20th season (in 2003), the rules were changed to allow contestants to remain on the show as long as they continued to win. After this rule change, and until Jennings' run, the record winning streak was set by Tom Walsh, who won $186,900 in eight games in January 2004.
Before his Jeopardy! appearance, Jennings was a member of BYU's Quiz Bowl Team. Jennings' run began during Jeopardy!'s 20th season with the episode aired on June 2, 2004, in which he unseated two-time returning champion Jerry Harvey, and continued into season 21. In that first episode, Jennings' entire winning streak nearly ended before it even began. The Final Jeopardy answer was, "She's the first female track & field athlete to win medals in five different events at a single Olympics." Jennings responded with "Who is Jones?", using only the last name of Marion Jones (who was not stripped of her medals until December 2007). Host Alex Trebek said, "We will accept that, in terms of female athletes, there aren't that many." If the response had not been accepted, Jennings would have finished in third place, and challenger Julia Lazarus would have won the game. Jennings' run was interrupted by the off-season break (July until September), 2004 Kids' Week, the Tournament of Champions (aired from September 20, 2004 through October 1, 2004), the 2004 United States Presidential Election (aired on Tuesday, November 2, 2004, pushing his weeks of episodes to air from Wednesday to Saturday) and the College Championship (aired from November 10, 2004 through November 23, 2004). As a result, he went the entire five months without a loss. He did not participate in the Tournament of Champions, as invitations are only extended to champions who have already been defeated (with the exception of the winner(s) of the College Championship), which Jennings had not yet been.
End of the streak
On November 30, 2004, Jennings' reign as Jeopardy! champion ended when he lost his 75th game to challenger Nancy Zerg. Jennings responded incorrectly to both Double Jeopardy! Daily Doubles, causing him to lose a combined $10,200 ($5,400 and $4,800, respectively) and leaving him with $14,400 at the end of the round. As a result, for only the tenth time in 75 games, Jennings did not have an insurmountable lead going into the Final Jeopardy! round. Only Jennings and Zerg, who ended Double Jeopardy! with $10,000, were able to play Final Jeopardy! as third-place contestant David Hankins failed to finish with a positive score after Double Jeopardy!.
The Final Jeopardy! category was Business & Industry, and the clue was "Most of this firm's 70,000 seasonal white-collar employees work only four months a year." Jennings appeared perplexed during the time allowed to write a response, while Zerg finished her response quickly. Zerg responded correctly with "What is H&R Block?" and wagered $4,401 of her $10,000, giving her a $1 lead over Jennings with his response still to be revealed. Jennings incorrectly responded with "What is FedEx?" and lost the game with a final score of $8,799 after his $5,601 wager was deducted from his score. After his response was revealed to be incorrect, the audience audibly gasped and it caused Nancy to be shocked after finding out that she won. He was awarded $2,000 for his second-place finish, which gave him a final total of $2,522,700 for his run on Jeopardy!. Zerg, whom Jennings called a "formidable opponent," finished in third place on the next show. The audience gave a standing ovation in honor of both contestants, and Trebek called Zerg a "giant killer" as Jennings embraced her.
It took a span of 182 calendar days to broadcast Jennings' 75 matches.
His losing episode can be seen on the 2005 DVD release of Jeopardy: An Inside Look at America's Favorite Quiz Show, released by Sony Pictures Home Entertainment.
Effect of the streak on Jeopardy!
Jeopardy! implemented some backstage changes during Jennings' run. Normally, players only get a short time to practice, but more rehearsal time was added so that the new players could get comfortable with the buzzers. Additionally, the person who managed the buzzer system was changed. In his book Brainiac, Jennings says that the consistency of the original manager's timing had given an increasing advantage to continuing players, and that the change made a noticeable difference in the second season that he was on the show. At one point, announcer Johnny Gilbert stopped announcing Jennings' total wins during the show's opening.
On December 1, 2004, the day after his defeat, Jeopardy! broke with tradition by having Jennings make a guest appearance at the start of the broadcast, during which host Alex Trebek acknowledged his success and enumerated the various game show records he had broken.
Jennings appeared in The Guinness Book of World Records under "Most cash won on a game show."
According to the Nielsen TV National People Meter, Jeopardy!'s ratings were 22% higher during Jennings' run than they were during the same period the previous year. For several weeks of the winnings' streak, Jeopardy! was ranked as TV's highest-rated syndicated program. By the end of Jeopardy!'s 20th season several weeks later, the show had surpassed sister program Wheel of Fortune in the ratings, though Wheel still benefited from the streak in markets where Jeopardy! is its lead-in in the common scheduling tactic for both shows.
Media appearances and coverage during the streak
Jennings has received a good deal of American media coverage. After his 38th win on Jeopardy!, during the summer break between tapings, Jennings made a guest appearance on Live with Regis and Kelly. There Jennings revealed that he had failed to qualify for Who Wants to Be a Millionaire, once hosted by Regis Philbin. During that guest appearance, Jennings said, "Jeopardy! is a man's game... it's not like Millionaire."
Jennings appeared on the Late Show with David Letterman to present Letterman's "Top Ten List" (Top ten ways to irritate Alex Trebek). He appeared again on the program on the night his final show was televised, in addition to interview segments airing that night on local late evening news programming and on Nightline. Barbara Walters selected Jennings as one of the "Ten Most Fascinating People of 2004" for her twelfth annual ABC News special, which aired on December 8, 2004. While on his media tour following his final game, Jennings taped a segment for Sesame Street. TV Guide featured a segment of "The Top Ten TV Moments of 2004", in which Jennings' loss placed third. On December 1, 2004, A&E aired an episode of Biography on Jennings and other Jeopardy! notables, including Frank Spangenberg and Eddie Timanus.
On December 28, 2004, Sony announced a 15-week, 75-show Jeopardy! Ultimate Tournament of Champions. It featured Tournament of Champions, College Championship, and Teen Tournament winners from the show's 21-year run, as well as over 100 five-time champions. Jeopardy!'s executive producer, Harry Friedman, explained:
The 2003 rule change, which allows Jeopardy! players to keep playing until they're defeated, raised the question about how other five-time champions might have played under this rule. This tournament is an opportunity to give those past champions another chance to shine.
The field totaled 145 players including Jennings, who, unlike the other competitors, was automatically placed in the finals. The Ultimate Tournament of Champions offered substantial cash prizes; with a grand prize of $2,000,000 to the winner, $500,000 for the first runner-up, and $250,000 for the second runner-up. Guaranteed prize money was offered to all contestants.
In the final round of the Ultimate Tournament, Brad Rutter decisively defeated Jennings and Jerome Vered, with respective final scores of $62,000, $34,599, and $20,600. Jennings won the $500,000 prize for second place, but as a result of the Ultimate Tournament, Rutter temporarily displaced him as the highest overall winner of money on game shows. Jennings has said he is still happy with his second-place finish.
From February 14–16, 2011, Jeopardy's "IBM Challenge" featured the computer company's Watson against Jennings and Rutter in two matches played over three days. The winner of the competition was Watson, winning $1 million for two charities, while Jennings was second and Rutter was third, receiving $300,000 and $200,000, respectively. Jennings and Rutter each pledged to donate half of their winnings to charity.
This was the first-ever man-versus-machine competition in the show's history. At the end of the first episode, in which only the first match's Jeopardy! Round was aired, Rutter was tied with Watson at $5,000, while Jennings was in third with $2,000. After the second episode in which the first game was completed, Jennings remained at third with $4,800 while Rutter at second had $10,400. The competition ended with Watson with $77,147, Jennings with $24,000, and Rutter with $21,600. Below his response during the Final Jeopardy! Round, Jennings wrote on his screen "I for one welcome our new computer overlords." It was the first time Rutter had been defeated against any human player, although the defeat is not on Rutter's Jeopardy! official record, as the competition was deemed an exhibition.
In 2014, Jeopardy! aired a special 5-week Jeopardy! Battle of the Decades tournament. Jennings made it to the finals along with Brad Rutter and Roger Craig. Jennings placed second, winning a $100,000 prize, and Rutter won first place, securing a $1,000,000 prize.
In the 2019 Jeopardy! All-Star Games, with 18 former champions, Jennings was one of six captains, choosing 2015 Jeopardy! Tournament of Champions runner-up Matt Jackson and 2012 Jeopardy! College Champion Monica Thieu (who coincidentally eliminated Jennings in a 2016 episode of 500 Questions) to complete his three-person "Team Ken". Team Ken finished second to the team captained by Rutter, with Jennings winning $100,000, one-third of the $300,000 second-place prize. This brought his lifetime Jeopardy!-related winnings to $3,522,700.
On November 18, 2019, ABC announced that Jennings, along with Brad Rutter and James Holzhauer would return to Jeopardy! in a tournament to determine who is the "Greatest of All Time" scheduled to air on January 7, 2020. Jennings won the championship to be crowned with the "Greatest of All Time" title.
Taking advantage of the notoriety that Jennings' losing Final Jeopardy! answer afforded, H&R Block offered Jennings free tax planning and financial services for the rest of his life. H&R Block senior vice president David Byers estimated that Jennings owed about $1.04 million in taxes on his winnings.
In a 2011 Reddit IAmA, Jennings recalled how in 2004 the Democratic politicians Chuck Schumer and Harry Reid unsuccessfully asked Jennings to run for the United States Senate from Utah. Jennings commented, "That was when I realized the Democratic Party was f@#$ed in '04."
Jennings has written several books. Brainiac: Adventures in the Curious, Competitive, Compulsive World of Trivia Buffs details his experiences on Jeopardy! and his research into trivia culture conducted after the completion of his run. Ken Jennings' Trivia Almanac: 8,888 Questions in 365 Days, a hardcover book, is a compilation of trivia questions—with 3 categories and about 20 questions per day of the year. Maphead: Charting the Wide, Weird World of Geography Wonks explores the world of map and geography enthusiasts. Because I said so! is a humorous examination of 'The myths, tales & warnings every generation passes down to its kids'. He also has written five books for his children's series, Junior Genius Guides. 
Jennings also had a column in Mental Floss magazine called "Six Degrees of Ken Jennings", in which readers submit two wildly different things and he has to connect them in exactly six moves, much in the same vein as the Six Degrees of Kevin Bacon game. The column ran from November 2005 to the September–October 2010 issue.
According to Variety.com, Jennings and television producer Michael Davies teamed up as executive producers on a new game show format for Comedy Central. According to Comedy Central execs, it was planned that Jennings would co-host and participate. The series was planned to premiere late in 2005 or in the first quarter of 2006; as of April 2006, development had stalled, and the show's future remained uncertain. Jennings explained on his website that "Stephen Colbert's show was doing so well in its post-Daily Show spot that Comedy Central decided they weren't in the market for a quiz show anymore." However, as of mid-2006, he was still shopping a potential game show titled, Ken Jennings vs. the Rest of the World.
Jennings appeared on The Colbert Report on September 13, 2006. During the interview, Colbert discussed Jennings' book, Brainiac, and mocked him not knowing the number of pages the book contained. After Colbert coined a word to describe intellectual nerdiness, "poindexterity", Jennings was going back and forth over what the correct noun for "poindexter" was. Jennings noted, as he had done earlier that day on NPR's Talk of the Nation, that since his streak, people "seem to have an extra-hard trivia question" in case they run into him.
He also appeared twice on NPR's Wait Wait... Don't Tell Me! program. In his February 25, 2006 appearance on the "Not My Job" segment, he answered all three questions correctly, winning for a listener Carl Kasell's voice on that person's home answering machine. Jennings stated, "This is the proudest moment of my game show life." On June 1, 2013, Jennings made his debut as a panelist on Wait Wait Don't Tell Me.
Entertainment Weekly put his performance on its end-of-the-decade "best of" list, saying, "Answer: A software engineer from Utah, he dominated the quizfest for a record 74 shows in 2004, amassing $2,520,700. Question: Who is Ken Jennings?"
Other game show appearances
Jennings appeared on the first two episodes of the NBC game show 1 vs. 100 on October 13 and 20, 2006 as a mob member. He incorrectly answered the question, "what color is the number 1 space on a standard roulette wheel?" as "black" instead of "red" in his second episode, eliminating him from the game. He left the show with $714.29, his share of a $35,000 prize shared among 49 Mob members. Jennings returned to the show for a special "Last Man Standing" episode aired on February 9, 2007. He was eliminated on the final question, which asked which of the three options had been married the most times, he answered King Henry VIII, while the correct answer was Larry King. This episode was the first time Jennings had a chance at a rematch against rival Brad Rutter, who was also part of the mob and was eliminated before Jennings.
In 2007, Jennings was invited to be a contestant on the game show Grand Slam hosted by Dennis Miller and Amanda Byram, also a Sony Pictures production. The show debuted on Game Show Network (GSN) on August 4, 2007, and featured sixteen former game-show winners in a single-elimination tournament. Jennings, seeded second behind Brad Rutter, won the tournament and became the 2007 Grand Slam Champion after defeating Ogi Ogas (a second-round winner against Rutter) in the finals. He earned $100,000 for his victory.
Jennings was a contestant on an episode of Are You Smarter Than a 5th Grader? that aired on October 11, 2008, which held the possibility of exceeding Rutter's total game show winnings. After winning $500,000, enough to surpass Rutter's total, Jennings chose not to attempt the final $1,000,000 question, which would have deducted $475,000 from his winnings if he missed it. As is customary on the show, Jennings was then shown the question to see what would have happened, and he provided the correct answer. Had he risked his winnings and correctly answered the question, he would have become the show's second $1,000,000 winner.
From 2008 to 2009, Jennings appeared on GSN on Fridays for the trivia game Stump the Master. Home viewers send questions via the GSN website. Four callers are put on hold and Jennings selects from one of the categories. The caller for the category he picked comes on the line and reads the question. If Jennings does not answer or is incorrect, the caller wins $1,000 or more. Any time Jennings is right, the jackpot is increased by $1,000. All callers are given a small prize, whether they participate on the air or not.
Jennings also appeared on two other Sony Pictures Television game shows, Who Wants to Be a Millionaire, as a frequent expert for the lifeline "Ask the Expert", and also taped a pilot for the proposed 2009 CBS revival of Sony's The $25,000 Pyramid.
Jennings appeared on Millionaire in 2014 as a contestant during Guinness World Records Edition themed week, where he won $100,000 after deciding to walk away on his $250,000 question. If he had gone for it, he would have been right and would have won $250,000.
In April 2019, it was announced that Jennings would be one of eight recurring "Trivia Experts" for the new Game Show Network program Best Ever Trivia Show, hosted by Sherri Shepherd. The show premiered at 4:00 p.m. ET on June 10, 2019. 
On April 6th, 2020, Ken Was Also Chosen To Be A “Master Mind” On The Master Minds Game Show On GSN
American Crossword Puzzle Tournament
Jennings won the rookie division of the American Crossword Puzzle Tournament (ACPT) in 2006. In his first time competing, Jennings placed 37th overall. He also served as the award's presenter, becoming the first contestant to present an award to himself. He has not competed in the tournament since.
Jennings had a weekly trivia column Kennections in Parade magazine. In it, five questions are posed and their answers are all connected to a mystery topic, which the readers are to guess. Parade ceased publishing the quiz in early 2015, and removed links to archived quizzes in March 2015. Kennections now appear in the online version of Mental Floss magazine.
Tuesday trivia emails
Every Tuesday, Jennings sends an email out containing seven questions, one of which is designed to be Google-resistant. Subscribers respond with the answers to all seven questions and the results are maintained on a scoreboard on Jennings' blog. At times he chooses to run multi-week tournaments, awarding the top responder with all seven answers correct with such things as a signed copy of his newest book.
On November 10, 2015, Jennings was criticized after he tweeted a joke about the death of Daniel Fleetwood, a lifelong Star Wars fan who died of cancer. Fleetwood's dying wish was to see Star Wars: The Force Awakens, fearing he likely would not live to see the film when it opened in theaters in December 2015. An online campaign was started on his behalf and his wish was granted only days before he died. Jennings said, "It can't be a good sign that every fan who has seen the new Star Wars movie died shortly thereafter."
Jennings again faced controversy when on May 31, 2017, he tweeted a joke involving Barron Trump, the youngest child of U.S. President Donald Trump. According to TMZ, after 11-year-old Barron Trump saw an image of Kathy Griffin holding a bloody Trump mask, he believed it was real and screamed. Jennings wrote, "Barron Trump saw a very long necktie on a heap of expired deli meat in a dumpster. He thought it was his dad & his little heart is breaking." After the tweet garnered controversy, Jennings said, "The joke doesn't mock Barron. It mocks using him for political cover."
In August 2018, Jennings was criticized for his description of an elderly woman tweeting about her deceased son. When she tweeted about her son's love for the 1980s television character ALF, Jennings responded with "This awful MAGA grandma is my favorite person on Twitter."
On September 7, 2017, HowStuffWorks unveiled a new show entitled Omnibus, co-hosted by Jennings and John Roderick, frontman of the indie-rock band The Long Winters. They will pick topics they fear might be lost to history and discuss them.
Jennings agreed to a deal with Microsoft to promote its Encarta encyclopedia software (which was later discontinued). He is also engaged in speaking deals through the Massachusetts-based speakers' agency American Program Bureau. In 2005, Cingular Wireless (now AT&T) featured Jennings in commercials portraying him as having lots of "friends and family" (coming out of the woodwork, because he is now "stinking rich").
University Games produced a Can You Beat Ken? board game, in which players vie against each other and Jennings in an attempt to earn $2.6 million first. Each question in the game was asked to Jennings, and his answers, both correct and incorrect, are recorded on the cards.
Ken Jennings has been an active member of the trivia app FleetWit, regularly playing in the live trivia races. As of March 2018, on average, he had answered 89% of questions correctly and has won over $2,000.
They currently reside in the Seattle metropolitan area. He has stated that he is an avid comic book and movie geek with a website listing his top 4,000 favorite movies. He also writes questions for, edits the literature and mythology categories of questions of, and is otherwise active in the National Academic Quiz Tournaments (NAQT), a quiz bowl organization; in particular, he moderated (i.e., read questions) at the 2005, 2006, and 2009 NAQT National High School Tournaments in Chicago.
- Jennings, Ken (2018). Planet Funny: How Comedy Took Over Our Culture. New York: Scribner. ISBN 978-1501100581.
- Jennings, Ken (2016). Ken Jennings’ Junior Genius Guides: Dinosaurs. New York: Little Simon. ISBN 978-1481429566.
- Jennings, Ken (2015). Ken Jennings’ Junior Genius Guides: Ancient Egypt. New York: Little Simon. ISBN 978-1481429528.
- Jennings, Ken (2015). Ken Jennings’ Junior Genius Guides: The Human Body. New York: Little Simon. ISBN 978-1481401739.
- Jennings, Ken (2014). Ken Jennings’ Junior Genius Guides: Outer Space. New York: Little Simon. ISBN 978-1481401708.
- Jennings, Ken (2014). Ken Jennings’ Junior Genius Guides: U.S. Presidents. New York: Little Simon. ISBN 978-1442473324.
- Jennings, Ken (2014). Ken Jennings’ Junior Genius Guides: Greek Mythology. New York: Little Simon. ISBN 978-1442473300.
- Jennings, Ken (2014). Ken Jennings’ Junior Genius Guides: Maps and Geography. New York: Little Simon. ISBN 978-1442473287.
- Jennings, Ken (2012). Because I Said So!: The Truth Behind the Myths, Tales, and Warnings Every Generation Passes Down to Its Kids. New York: Scribner. ISBN 978-1451656251.
- Jennings, Ken (2011). Maphead: Charting the Wide, Weird World of Geography Wonks. New York: Scribner. ISBN 978-1439167175.
- Jennings, Ken (2008). Ken Jennings's Trivia Almanac: 8,888 Questions in 365 Days. New York: Villard. ISBN 978-0345499974.
- Jennings, Ken (2006). Brainiac: Adventures in the Curious, Competitive, Compulsive World of Trivia Buffs. New York: Villard. ISBN 978-1400064458.
|Ken Jennings: Watson, Jeopardy and me, the obsolete know-it-all, TED talks|
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- "PBS NOVA: Smartest Machine on Earth". PBS. February 14, 2011. Retrieved February 14, 2011.
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- Swift, Andy (March 19, 2019). "Jeopardy! Crowns a Winning Team in the First-Ever 'All-Star Games'". TVLine. Retrieved April 22, 2019.
- Young, Julius. "'Jeopardy!' icon Ken Jennings jokes he has a James Holzhauer voodoo doll, says faceoff would be 'irresistible'". Fox News. Retrieved June 15, 2019.
- "WHO IS THE GREATEST JEOPARDY! PLAYER OF ALL TIME?". Jeopardy!. November 18, 2019. Archived from the original on November 18, 2019. Retrieved November 18, 2019.
- Tyler Aquilina (January 14, 2020). "It's official: Ken Jennings is the greatest Jeopardy! contestant of all time". Entertainment Weekly. Retrieved January 15, 2020.
- "Q.: "What is H&R Block?" A.: The Company You Turn to for Tax and Financial Assistance" (Press release). H&R Block. November 30, 2004. Retrieved July 7, 2006.
- Roth, Stephen (November 30, 2004). "Block offers Jeopardy! champ tax services for life". Kansas City Business Journal. American City Business Journals. Retrieved July 20, 2014.
- "'Jeopardy' streak comes to end". MSNBC. Associated Press. December 1, 2004. Retrieved July 20, 2014.
- Jennings, Ken (March 3, 2011). "IAmA 74-time Jeopardy! champion, Ken Jennings. I will not be answering in the form of a question". Reddit. Retrieved January 29, 2016.
- Jennings, Ken (2006). Brainiac: Adventures in the Curious, Competitive, Compulsive World of Trivia Buffs. Random House. ISBN 1-4000-6445-7.
- 2008, Villard, ISBN 978-0-345-49997-4
- "Maphead". C-SPAN Video Library. September 20, 2011. Retrieved February 25, 2012., 2011, Scribner, ISBN 1-4391-6717-6
- 2012, Scribner, ISBN 978-1-4516-5625-1, ebook ISBN 978-1-4516-5627-5
- "Ken Jennings' Junior Genius Guides". Retrieved March 3, 2015.
- "mental_floss media kit" (PDF) (Press release). Mental Floss LLC. Archived from the original (PDF) on July 9, 2006. Retrieved July 20, 2006.
- Nov–Dec 2005 table of contents for mental floss magazine Archived September 26, 2008, at the Wayback Machine. Accessed October 14, 2008.
- Jennings, Ken (December 31, 2010). "Another year over, a new one just begun". ken-jennings.com. Retrieved January 12, 2011.
- Martin, Denise (May 24, 2005). "Trivia titan gets series: Comedy, Jennings prep game". Variety. Retrieved November 29, 2006.
- Ken Jennings (2006). "FAQ: Life A.T. (After Trebek)". Retrieved June 29, 2006.
- "The Colbert Report – September 13, 2006: Ken Jennings". ColbertNation.com. Retrieved October 13, 2008.
- "Wait Wait...Don't Tell Me!". Npr.org. Retrieved February 9, 2017.
- Geier, Thom, Jensen, Jeff, Jordan, Tina, Lyons, Margaret, Markovitz, Adam, Nashawaty, Chris, Pastorek, Whitney, Rice, Lynette, Rottenberg, Josh, Schwartz, Missy, Slezak, Michael, Snierson, Dan, Stack, Tim, Stroup, Kate, Tucker, Ken; Vary, Adam B., Vozick-Levinson, Simon, Ward, Kate (December 11, 2009), "THE 100 Greatest MOVIES, TV SHOWS, ALBUMS, BOOKS, CHARACTERS, SCENES, EPISODES, SONGS, DRESSES, MUSIC VIDEOS, AND TRENDS THAT ENTERTAINED US OVER THE PAST 10 YEARS". Entertainment Weekly. (1079/1080):74-84
- "Ken Jennings: Confessions of a Trivial Mind • View topic – Roulette, Ken, and 1 vs. 100". www.ken-jennings.com.
- "10 Biggest American Game Show Winners (VIDEO)". TV Insider. Retrieved June 12, 2020.
He also competed on Millionaire, 1 vs. 100, Grand Slam, and Are You Smarter Than a 5th Grader?
- "Ken Jennings – Blog". Ken-jennings.com. Retrieved February 9, 2017.
- Bibel, Sara (October 27, 2014). "Game Show Legend Ken Jennings to Play 'Who Wants to be a Millionaire' on Friday November 14 & Monday, November 17". TV By the Numbers. Zap2it. Archived from the original on October 29, 2014. Retrieved October 27, 2014.
- Ken Jennings on '500 Questions': 'Jeopard' Champ Joins ABC Game 500 Questions May 2, 2016
- "@midnight with Chris Hardwick – May 15, 2017 – #FirstDraftCartoons". Comedy Central. Retrieved May 17, 2017.
- "Ken Jennings Joins BEST EVER TRIVIA SHOW". Broadway World. Retrieved May 22, 2019.
- "Crossed Up by the K in Connecticut". Crosswordtournament.com. Retrieved February 12, 2007.
- "Kennections: Play Trivia Puzzles by Ken Jennings". Retrieved June 3, 2014.
- "Ken Jennings' Blog". Retrieved February 12, 2015.
- "Tuesday Trivia Scoreboard". Ken-jennings.com.
- Hongo, Hudson (December 15, 2014). "The 75 Best Twitter Accounts of 2014 :: Comedy :: Lists :: Paste". Paste. Retrieved December 26, 2014.
- Ledbetter, Carly (September 22, 2014). "Ken Jennings Of 'Jeopardy!' Fame Tweets Awful Wheelchair 'Joke'". The Huffington Post. Retrieved December 26, 2014.
- Rothkopf, Joanna (September 22, 2014). "Ugh: Jeopardy champion Ken Jennings tweets super offensive "wheelchair" joke". Salon. Retrieved December 26, 2014.
- Weisman, Aly (September 23, 2014). "'Jeopardy!' Champ Ken Jennings Under Fire For Insensitive Wheelchair Tweet". Business Insider. Retrieved December 26, 2014.
- "'Jeopardy' champion Ken Jennings shocks Twitter followers with offensive post". The Atlanta Journal-Constitution. September 24, 2014. Retrieved December 26, 2014.
- Magilo, Tony (November 11, 2015). "'Jeopardy' Legend Ken Jennings Booed for 'Disgusting' Joke About Dead 'Star Wars' Fan Daniel Fleetwood". The Wrap. Retrieved November 11, 2015.
- "Jeopardy's Ken Jennings mocks Barron Trump on Twitter over Kathy Griffin's 'gory' head photo". AOL. June 1, 2017. Retrieved June 19, 2017.
- Shepherd, Ken (May 31, 2017). "Ken Jennings, 'Jeopardy' champion, mocks Barron Trump on Twitter". The Washington Times. Retrieved May 31, 2017.
- Rantz, Jason (August 7, 2018). "Jeopardy star Ken Jennings mocks mom who lost disabled son". mynorthwest.com. Retrieved August 8, 2018.
- "Podcasting Giant HowStuffWorks Announces Four New Shows, Expansion of Genres and Fresh Talent". September 7, 2017.
- https://twitter.com/kenjennings/status/1234924904333500416?lang=en. Missing or empty
- "American Program Bureau". Archived from the original on March 12, 2005.
- Can You Beat Ken? entry, BoardGameGeek website. Retrieved January 23, 2014.
- To the Fleetest, Ken Jennings' Blog. Retrieved March 6, 2018.
- Ken Jennings, FleetWit website. Retrieved March 6, 2018.
- "LL Profile: JenningsK". Learnedleague.com. Retrieved February 9, 2017.
- Brainiac’s daughter Ken Jennings. Retrieved on November 14, 2006.
- "National Academic Quiz Tournaments, LLC". Web.archive.org. Archived from the original on April 12, 2008.
- "CHG Healthcare Services Announces June 26 Ribbon Cutting : Honored Guests to include Utah Gov. Huntsman, Holladay Mayor Webb and Utah business leaders" (PDF). Content.chghealthcare.com. Retrieved July 26, 2019.
- Kennedy, Randy (December 1, 2004). "'Jeopardy!' Whiz Ken Jennings Loses". Nytimes.com.
- "Ken Jennings: Watson, Jeopardy and me, the obsolete know-it-all". TED talks. Retrieved April 6, 2013.
|Wikimedia Commons has media related to Ken Jennings.|
- Official website
- Jeopardy! web site
- Omnibus podcast web site
- Jennings' February 2013 TED talk (video), "Watson, Jeopardy, and me, the obsolete know-it-all"
- Ken Jennings on IMDb
- 2006 IMNO Interview with Ken Jennings
| All-time Jeopardy! winnings leader
| All-time American game show winnings leader
| Biggest Jeopardy! winners by season
Took place over two seasons
1–37 in 2003–04, 38–74 in 2004–05
| Biggest one-day winners on Jeopardy! by season
Brian Weikle, 2002–2003
Jerome Vered, 1992
$34,000 ($68,000 adjusted)
| Biggest one-day winners on Jeopardy!
Roger Craig, 2010
| Biggest Jeopardy! regular play winnings leader