American Ninja Warrior

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American Ninja Warrior
Genre Documentary
Sports Entertainment
Format Live-action
Presented by Matt Iseman
Akbar Gbaja-Biamila
Jenn Brown
Country of origin United States
Original language(s) English
No. of seasons 5
No. of episodes 27
Executive producer(s) Arthur Smith
Kent Weed
Holly M. Wofford
Vittoria Cacciatore
Camera setup Multiple-camera
Running time 60 minutes
Production company(s) A. Smith and Company
Tokyo Broadcasting System Television
Lake Paradise Entertainment
Distributor G4 Media
Original channel G4 (2009–2013);
Esquire Network (2014-present)
NBC (2012–present)
Original run December 12, 2009 (2009-12-12) – present
Preceded by American Ninja Challenge (2006–08)
Related shows Sasuke
External links

American Ninja Warrior is a sports entertainment competition spin-off of the television series Sasuke. The series began on December 12, 2009, in Los Angeles, with the top 10 competitors moving on to compete at "Mt. Midoriyama"[note 1] in Japan. American Ninja Warrior succeeded G4's American Ninja Challenge as the qualifying route for Americans to enter Sasuke. Beginning with the fourth season in 2012, regional finalists and wild card competitors competed on an identical Mt. Midoriyama course in Las Vegas rather than traveling to Japan to compete on Sasuke. NBC (who owns G4) announced in September 2013 that it would air a special USA versus Japan series later that year wherein top American and Japanese competitors would go head-to-head on the Las Vegas Mt. Midoriyama course.[1]

The fifth season of American Ninja Warrior premiered on June 30, 2013 on G4.[2]

Season 1 (2009)[edit]

The first season of American Ninja Warrior was held in Los Angeles, where hundreds of competitors came to challenge themselves against the course and qualify for a shot at making it to Japan to compete in Sasuke 23 later in the year. The special premiered on December 12, 2009, on G4 TV and was hosted by G4's Blair Herter and Alison Haislip.

Notable competitors included: famed freerunners Levi "The Legend" Meeuwenberg and Brian Orosco, mixed martial artist Jason "Mayhem" Miller, and Hollywood stuntman Rich King.


Season 1 (Sasuke 23) finalists
Place Name SASUKE # Failed obstacle
1st Brian Orosco 75* Unstable Bridge
2nd Levi Meeuwenberg 95* Shin-Cliffhanger
3rd Travis Furlanic 44 Jumping Spider
4th Paul Darnell 43 Half-Pipe Attack
5th Rich King 42 Unstable Bridge
6th Caine Sinclair 41 Timed Out Rope Ladder
7th Shane Daniels Timed Out Tarzan Rope
8th Geoff Iida Warped Wall
9th Joop Katana Timed Out Slider Jump
10th Rick Huelga Timed Out Slider Jump
  • Despite Orosco finishing first overall, Meeuwenberg received a higher number due to his SASUKE experience.

Sasuke 23 (Mt. Midoriyama)[edit]

Stage 1: only Rich King, Levi Meeuwenberg and Brian Orosco successfully completed this stage. The majority of the American Ninja Warrior competitors ran out of time.

Stage 2: Levi Meeuwenberg was the only American competitor to complete this stage.

Stage 3: Levi Meeuwenberg was the only American competitor to advance to this stage, but he fell on the "Shin-Cliffhanger".

Season 2 (2010)[edit]

The second season called American Ninja Warrior 2 began on December 8, 2010 in Venice Beach, California where 300 competitors took on the course. The 15 semi-finalists moved on to the "Ninja Warrior Boot Camp" in the remote California mountains, where they competed in a series of team challenges. Then the final moved on to compete in the season finale of American Ninja Warrior 2 as a part of Sasuke 26 at Mt. Midoriyama in Japan.

This season was hosted by Matt Iseman and Jimmy Smith, with G4's Alison Haislip as a sideline reporter.

Notable competitors this year included: professional freerunner Brent Steffensen, former American Gladiator Evan Dollard, and former Survivor contestant Ozzy Lusth.


The 15 semi-finalists headed to "Ninja Warrior Boot Camp" where they were broken down into three teams: Red Dragons, White Tigers, and Blue Monkeys. From then on, 5 were eliminated from competition and 10 moved onto Mt. Midoriyama in Japan to compete in the season finale of American Ninja Warrior 2 for a chance to win $250,000 and be the first "American Ninja Warrior".

The 10 finalists earned the chance to compete at Sasuke 26 (Ninja Warrior) which aired on January 2, 2011 on G4.

Final 10: In order they received their American flag "colors" (bandannas):

Red Dragons:

Order # Competitor
1 Brent Steffensen
2 Travis Furlanic
3 Paul Kasemir
4 David Campbell

White Tigers:

Order # Competitor
1 Shane Daniels
2 Levi Meeuwenberg

Blue Monkeys:

Order # Competitor
1 Brian Orosco
2 Patrick Cusic
3 Adam Truesdell
4 Evan Dollard

Season finale in Japan[edit]

None of the American Ninja Warrior season 2 competitors were able to complete stage 3, but half (5 out of 10) completed stage 1 and progressed onto stage 2, where 4 out of 5 made it onto stage 3.

Stage 1[edit]

Order # Finalist Outcome Obstacle/time
1 Adam Laplante * Failed Half-Pipe Attack
2 Patrick Cusic Failed Rolling Escargot
3 Paul Kasemir Completed Time: 129.15
4 Adam Truesdell Failed Giant Swing
5 Evan Dollard Failed Rolling Escargot
6 Brent Steffensen Completed Time: 121.29
7 Travis Furlanic Completed Time: 115.27
8 Shane Daniels Failed Timed Out Final Climb
9 David Campbell Completed Time: 108.49
10 Brian Orosco Completed Time: 109.04

* alternate, replaced Levi Meeuwenberg who broke his wrist during a taping of Jump City: Seattle

Stage 2[edit]

Order # Finalist Outcome Obstacle/time
1 Paul Kasemir Completed Time left: 2.57
2 Brent Steffensen Completed Time left: 21.64
3 Travis Furlanic Failed Balance Tank
4 David Campbell Completed Time left: 23.43
5 Brian Orosco Completed Time left: 5.76

Stage 3[edit]

Order # Finalist Outcome Obstacle
1 Paul Kasemir Failed Doorknob Grasper
2 Brent Steffensen Failed Ultimate Cliffhanger
3 David Campbell Failed Ultimate Cliffhanger
4 Brian Orosco Failed Roulette Cylinder

American Ninja Warrior Season 1 and 2: Format changes from Sasuke[edit]

The first and second seasons of American Ninja Warrior has a few notable differences from the Japanese ("Sasuke") version. They are:

  • Stage 1: in the American version competitors compete against each other for the 30 fastest times to advance to stage 2, while in Japan competitors are required to complete the course in a designated time limit. Consequently, the American version sets a fixed, predictable number of 30 competitors advancing to stage 2, while in the Japanese version, number of qualified competitors could technically range from any number between from 0 to 100, making the result highly unpredictable. There's no official limit of competitors for stage 1 stated, whereas in Japan, only 100 competitors can attempt stage 1.
  • Stage 2: in the American version, it is an expanded version of stage 1 (a repeat of Stage 1 with a few additional obstacles at the end), while in Japan, Stage 1 and 2 are entirely different. Again, in the American version, competitors are competing against the course and each other, only 15 competitors with the best times advance to stage 3, whereas in Japan competitors are competing against a rigid time limit.
  • Stage 3: In stage 3, competitors have to complete 4 different tasks with the lowest combined time (consisting of carrying 10 bricks across a beach while being held back by bungee cords, carrying barrels over logs, hopping through tires, etc.). Only the 10 competitors with the lowest times win a trip and a chance to compete at Mt. Midoriyama in Japan. As such, there is no "final" stage in the American version.

Season 3 (2011)[edit]

The third season began airing on July 31, 2011 on G4. Tryouts took place in May 2011 at Venice Beach, California. After the tryouts, the top 15 competitors competed in Ninja Warrior Boot Camp with the top 10 moving on to Japan for the finals of the competition as apart of Sasuke 27 and a chance at becoming the first American to conquer the course and win a $500,000 endorsement deal with K-Swiss. No competitors made it beyond stage 3.

The final episode aired on August 22, 2011 as a two-hour primetime special on NBC.[3][4]

This season was once again hosted by Matt Iseman and Jimmy Smith, with Haislip as a sideline reporter.

Notable competitors this year included Denver Broncos wide receiver Matt Willis, professional freerunners Tim "Livewire" Shieff (2009 World Champion) and Michael "Frosti" Zernow (who competed in Survivor: China and Jump City: Seattle).

Stage 1[edit]

Order # Finalist Outcome Obstacle
1 Brent Steffensen Completed
2 Paul Kasemir Completed
3 David Campbell Completed
4 James McGrath Completed
5 Drew Dreschel Failed Warped Wall (Injury on half pipe attack)
6 Travis Furlanic Completed
7 Travis Rosen Completed
8 David "Flip" Rodriguez Completed
9 Jake Smith Completed
10 Ryan Stratis Completed

Stage 2[edit]

Order # Finalist Outcome Obstacle
1 Brent Steffensen Failed Metal Spin
2 Paul Kasemir Completed
3 David Campbell Completed
4 James McGrath Completed
5 Travis Furlanic Failed Metal Spin
6 Travis Rosen Failed Metal Spin
7 David "Flip" Rodriguez Failed Slider Drop
8 Jake Smith Failed Double Salmon Ladder
9 Ryan Stratis Completed

Stage 3[edit]

Order # Finalist Outcome Obstacle
1 Ryan Stratis Failed Ultimate Cliffhanger
2 James McGrath Failed Ultimate Cliffhanger
3 Paul Kasemir Failed Ultimate Cliffhanger
4 David Campbell Failed Ultimate Cliffhanger

Season 4 (2012)[edit]

The fourth season of American Ninja Warrior began airing on May 20, 2012 on both G4 and NBC. There were six regional competitions held in three locations: Venice Beach, CA (Southwest and Northwest), Dallas, TX (Midwest and Midsouth), and Miami, FL (Northeast and Southeast) that determined the 100 competitors to participate in the qualifying rounds. The winner of the ANW Season Four competition receives $500,000 and the coveted "American Ninja Warrior" title. The season finale, held in Las Vegas, NV, was the first time that Mt. Midoriyama was held on U.S. soil. Submission videos for American Ninja Warrior Season 4 have been collected since January 25, 2012.[5]

This season was again hosted by Matt Iseman, with a new host, skier Jonny Moseley, and newcomer Angela Sun as the sideline reporter.

Notable competitors this year included film actor William Moseley, Tennessee Titans defensive end Kamerion Wimbley, stuntman Dan Mast, "Roam" (a.k.a. A.J. Amores) and "Chairman Platinum" from MMO video game company Artix Entertainment, freerunners from Jump City: Seattle David "Young Flip" Rodriguez and Drew Drechsel, and Harlem Globetrotters basketball player Bull Bullard.

100 finalists made it out of the regional competitions and were invited to Las Vegas.

Stage 1[edit]

Order # Finalist Outcome Obstacle
1 Tom Hutchman Failed Giant Swing
2 David Money Failed Final Climb
3 Cade Halada Failed Jumping Spider
4 Ronnie Shalvis Sr. Failed Jumping Spider
5 Michael Pericoloso Failed Half-Pipe Attack
6 Marcus Ramos Failed Giant Swing
7 Alan Connealy Failed Half-Pipe Attack
8 Ben Wicks Failed Warped Wall (Time Out)
9 Michael 'Frosti' Zernow Failed Jumping Spider
10 Nick Kostner Failed Rope Ladder (Time Out)
11 Matt Mings Failed Jumping Spider
12 Andres De La Rosa Failed Jumping Spider
13 Tremayne Dortch Failed Half-Pipe Attack
14 Paul O' Connor Failed Half-Pipe Attack
15 Ronnie Shalvis Jr. Failed Jumping Spider
16 Nathaniel Aye Failed Giant Swing
17 John Sapsoto Failed Warped Wall (Time Out)
18 Gunner Bahn Failed Half-Pipe Attack
19 James Wyatt Failed Half-Pipe Attack
20 Tony Reddick Failed Giant Swing
21 Dylan Curry Failed Jumping Spider
22 Andrew Lowes Failed Spin Bridge
23 Natalie Strasser Failed Rolling Log
24 Phillip Pirollo Failed Spin Bridge
25 Brian Kretsch Failed Jumping Spider
26 Nathaniel Spencer Completed
27 Niko Bogucki Failed Warped Wall (Time Out)
28 Kelvin Antoine Failed Fell Off Course after Giant Swing
29 Ryan Thompson Failed Half-Pipe Attack
30 Joshua Grant Failed Spin Bridge
31 Bradley Smith Jr. Failed Jumping Spider
32 Ben Snead Completed
33 Selena Laniel Failed Jumping Spider
34 Bob Pondrom Failed Giant Swing
35 Adam Grossman Failed Giant Swing
36 Dan Mast Failed Half-Pipe Attack
37 Will Dodd Completed
38 Ryan Saegert Failed Warped Wall (Time Out)
39 Danny Johnson Completed
40 Kevan Reoli Failed Rolling Log
41 Jake Smith Failed Warped Wall (Time Out)
42 Brendon Kelly Failed Jumping Spider
43 Patrick Cusic Failed
44 Paul Darnell Completed
45 Ryoga Vee Failed Warped Wall (Time Out)
46 Scott Robinson Failed Jumping Spider
47 Andrew Wood Failed Step Slider
48 J.B. Douglas Completed
49 Lorin Ball Completed
50 Thomas Hall Failed Spin Bridge
51 Dorian Cedars Failed Rope Ladder (Time Out)
52 Jonathan Morin Failed Jumping Spider
53 Risa Scott Failed Step Slider
54 Christopher Digangi Failed Jumping Spider
55 Justin Walcker Failed Jumping Spider
56 Josh Lobeck Completed
57 William Brown Failed Jumping Spider
58 Joyce Shaboz Failed Rolling Log
59 Derek Nakamoto Completed
60 Nickolas Stephen Failed Spin Bridge
61 Jesse Villarreal Failed Spin Bridge
62 Nathan Sausedo Failed Rolling Log
63 Ahmed Toure Completed
64 Sean Morris Failed Spin Bridge
65 Chad Simpson Failed Jumping Spider
66 Michael Silenzi Failed Warped Wall (Time Out)
67 Travis Graves Failed Spin Bridge
68 Joshua Horsely Failed Warped Wall (Time Out)
69 Sat Khalsa Failed Spin Bridge
70 William 'Bull' Bullard Failed Final Climb (Time Out)
71 Brent Steffensen Completed
72 Arthur Skov Failed Jumping Spider
73 Elet Hall Completed
74 Justin Sweeney Failed Spin Bridge
75 Kevin Klein Failed Jumping Spider
76 Michael Eckert Failed Jumping Spider
77 Remi Bakkar Completed
78 Stephen Volcko Failed Jumping Spider
79 Chris Wilczewski Completed
80 Kyle Cochran Failed Spin Bridge
81 Jaret Salas Failed Warped Wall
82 Jared Woods Failed Half-Pipe Attack
83 Kole Stevens Completed
84 Jack Morgan Failed Giant Swing
85 Dan Galiczynski Failed Jumping Spider
86 Sean Noble Completed
87 Brian Arnold Completed
88 Travis Rosen Completed
89 Jesse La Flair Failed Jumping Spider
90 Andrew Karsen Failed Half-Pipe Attack
91 Luis Moco Failed Warped Wall (Time Out)
92 David Campbell Failed Spin Bridge
93 Brandon Douglass Completed
94 Drew Drechsel Completed
95 Evan Dollard Completed
96 Matthew Derouen Failed Step Slider
97 Tim 'Livewire' Sheiff Failed Spin Bridge
98 James McGrath Completed
99 Paul Kasemir Completed
100 David Rodriguez Completed

Stage 2[edit]

Order # Finalist Outcome Obstacle
1 Nathaniel Spencer Failed Double Salmon Ladder
2 Ben Snead Failed Double Salmon Ladder
3 Will Dodd Failed Double Salmon Ladder
4 Danny Johnson Failed Double Salmon Ladder
5 Paul Darnell Failed Unstable Bridge
6 J.B. Douglas Failed Unstable Bridge
7 Lorin Ball Failed Double Salmon Ladder
8 Josh Lobeck Failed Double Salmon Ladder
9 Derek Nakamoto Failed Metal Spin
10 Ahmed Toure Failed Balance Tank
11 Brent Steffensen Completed
12 Elet Hall Failed Unstable Bridge
13 Remi Bakkar Failed Double Salmon Ladder
14 Chris Wilczewski Failed Slider Drop
15 Kole Stevens Failed Slider Drop
16 Sean Noble Failed Unstable Bridge (Dismount)
17 Brian Arnold Failed Balance Tank
18 Travis Rosen Failed Balance Tank
19 Brandon Douglass Failed Unstable Bridge
20 Drew Drechsel Failed Unstable Bridge (Dismount)
21 Evan Dollard Failed Double Salmon Ladder
22 James McGrath Failed Slider Drop
23 Paul Kasemir Failed Metal Spin
24 David Rodriguez Failed Balance Tank

Stage 3[edit]

Order # Finalist Outcome Obstacle
1 Brent Steffensen Failed Hang Climb

Season 5 (2013)[edit]

The fifth season of American Ninja Warrior premiered on June 30, 2013 on G4 with subsequent shows airing on NBC and G4.[2] Notably, the sideboard advertising along the course listed Esquire Network as the broadcaster as the fourth season was to premiere after G4's transition to Esquire on April 22, 2013. The network switch was eventually delayed to September 23, 2013 and Esquire took over Style Network's channel space instead. Because of this, additional reruns of the season aired on Saturday nights on NBC through the summer, to maintain ratings momentum due to G4's lame duck status, with ANW being their only new program since they wound down all their original programming in January 2013.

Regional competitions were held in the following four locations to determine the 100 competitors to participate in the other stages: Venice Beach, CA; Baltimore, MD; Miami, FL; and Denver, CO. Tryouts for the season began in February 2013,[6] with the last of the regional rounds taking place the following May.[7] The winner of the ANW Season Five competition receives $500,000 and the coveted "American Ninja Warrior" title. Like the previous season, the season finale will be held in Las Vegas, NV, making the U.S. version of Mt. Midoriyama its permanent home.

The season is again hosted by Matt Iseman, with two newcomers, Akbar Gbaja-Biamila and Jenn Brown as the sideline reporter.

Notable competitors this year included: Tennessee Titans safety Jordan Babineaux, freerunners from Jump City: Seattle Brian Orosco, Michael "Frosti" Zernow, David "Flip" Rodriguez, Drew Drechsel, Jake Smith and Brent Steffensen (the first American to complete stage 2). His run ended on stage 3 the "Ultimate Cliffhanger" obstacle, Sasuke (TV series) & ANW veteran David Campbell, stunt-woman Jessie Graff (first woman in ANW history to make it to a regional finals [8]), personal trainer/former American Gladiator "Venom" Beth Horn, world champion freerunner Tim "Livewire" Shieff, Harlem Globetrotter William "Bull" Bullard, "Artix" (a.k.a. Adam Bohn) from the video game studio Artix Entertainment, Olympic Gold Medalist runners Dee Dee Trotter and Lauryn Williams, Olympic Silver Medalist heptathlon athlete Hyleas Fountain, 7th grade English teacher Colby Frontiero, Emergency Room physician Noah Kaufman, MD who reduced another competitor's dislocated shoulder (Alan Connealy,) former National Guardsman & ANW veteran Ryan Stratis, professional MMA fighter Jason Soares, Olympic silver medalist gymnast Terin Humphrey, former professional snowboarder Graham Watanabe, professional UFC MMA fighter and The Ultimate Fighter season 14 winner John Dodson, and former NFL player Shawne Merriman.

This was the first season where females attempted the Warped Wall (obstacle #6) of a course. Nika Muckelroy made it to the Warped Wall in the Denver qualifying course. Jessie Graff fell in the Flying Nunchucks (obstacle #5) during Venice qualifying but advanced in 30th position and reached the Warped Wall of the Venice finals. Both were unable to get up the wall in the 3 attempts given.

Stage 1[edit]

Order # Competitor Time Left
1 Elet Hall 00:39.25
2 Lorin Ball 00:38.62
3 James McGrath 00:38.47
4 Joe Moravsky 00:36.23
5 Brent Steffensen 00:30.63
6 Jesse La Flair 00:26.97
7 Josh Cook 00:26.03
8 Christopher Romrell 00:24.86
9 William Brown 00:22.73
10 Paul Kasemir 00:23.54
11 Drew Drechsel 00:21.63
12 Jamie Rahn 00:19.26
13 Casey Finley 00:18.90
14 Noah Kaufman 00:14.10
15 Travis Rosen 00:13.50
16 Yev Kouchnir 00.09.67
17 Kyle Sinacori 00:07.60
18 Andres De La Rosa 00:07.60
19 Brian Arnold 00.03.64
20 Travis Weinand 00:02.30
21 Idoko Abuh 00:01.98

Stage 2[edit]

Order # Competitor Time Left
1 Casey Finley 00:42.36
2 James McGrath 00:35.66
3 Idoko Abuh 00:28.70
4 Joe Moravsky 00:17.70
5 Brian Arnold 00:12.65
6 Travis Weinand 00:10.13
7 Travis Rosen 00:05.17

Stage 3[edit]

Order # Finalist Outcome Obstacle
1 Brian Arnold Failed Flying Bar

No one defeated Stage 3, but Brian Arnold fell on the last obstacle, the Flying Bar, making him the farthest-going American on the Mt. Midoriyama course since Kane Kosugi reached the final stage on SASUKE 8. He also made it farther than any competitor in American Ninja Warrior history, surpassing Brent Steffensen, who failed on the Hang Climb in Stage 3 the previous season.

USA vs Japan (2014)[edit]

During the season 5 finale of American Ninja Warrior, NBC announced that a special USA vs. Japan matchup would take place, the first-ever team competition in ANW's history. The two-hour special premiered on January 13, 2014 at 8pm EST. It featured five of the top American and Japanese Ninja Warrior competitors facing off at Mt. Midoriyama on American course in Las Vegas, Nevada to win the first championship trophy. It was hosted by ANW analysts Matt Iseman and Akbar Gbaja-Biamila with Jenn Brown conducting interviews on the sidelines.

The American team, represented by Brent Steffensen, Paul Kasemir, James McGrath, Travis Rosen and Brian Arnold, competed against five Japanese stars from Sasuke (the original Ninja Warrior) series: Shingo Yamamoto (29-time NW veteran), Yuji Urushihara (2-time grand champion), Ryo Matachi, Hitoshi Kanno, and Kazuma Asa (record holder for the fastest new-era NW stage 1 time of 1:14.70).[9]


Competitors from opposing teams were paired against each other, with the athlete who made it the farthest winning the round. The first national team to win three rounds earned the points for that stage. Stage one was worth one point; stage two was worth two points; and stage three was valued at three points. Competitors would attempt stage four only as a tie breaker.

Stage 1[edit]

  • This stage was worth 1 point team per team
Match-up Team USA Finish Time Team Japan Finish Time Point
1 James "The Beast" McGrath 1:16.67 Shingo "The Godfather" Yamamoto Failed on Warped Wall USA
2 Paul Kasemir 1:24.80 Hitoshi "The Muscle" Kanno 1:25.43 USA
3 Brent Steffensen 1:14.53 (new record) Kazuma "The Speed Demon" Asa Failed on Giant Cycle USA

Stage 2[edit]

  • This stage was worth 2 points per team
Match-up Team USA Finish Time Team Japan Finish Time Point
1 Brian Arnold 1:14.63 Ryo "the Superfan" Matachi Failed on Double Salmon Ladder USA
2 Travis Rosen Failed on Metal Spin Yuuji "The Grand Champion" Urushihara Failed on Double Salmon Ladder USA
3 James McGrath 1:15.00 Kazuma "The Speed Demon" Asa Failed on Double Salmon Ladder USA

Stage 3[edit]

  • This stage was worth 3 points per team
Match-up Team USA Finish Time Team Japan Finish Time Point
1 Brian Arnold Failed on Flying Bar (3:55.04) Ryo Matachi Failed on Flying Bar (3:55.03) JAPAN
2 James McGrath Failed on Floating Boards (0:37.53) Yuuji Urushihara Failed on Floating Boards (0:37.54) USA
3 Brent Steffensen Failed on Hang Climb Shingo Yamamoto Failed on Floating Boards USA
4 Paul Kasemir Failed on Flying Bar Hitoshi Kanno Failed on Ultimate Cliffhanger USA

Final Score: Team USA (6), Team Japan (0)

ANW Team Champions: Team USA

See also[edit]


  1. ^ The name used on the American show redundantly includes both "Mount" and "Yama," the suffix meaning "mountain" in Japanese.


  1. ^ "'Ninja Warrior' plans USA vs. Japan matchup". USA Today. September 16, 2013. Retrieved September 17, 2013. 
  2. ^ a b "American Ninja Warrior". Retrieved June 30, 2013. 
  3. ^ O'Hare, Kate (2011). "'American Ninja Warrior' storms Japan's Mount Midoriyama". Zap2it. Retrieved August 17, 2011. 
  4. ^ Hale, Mike (2011). "A ‘Ninja Warrior’ Upgrade Into Network Prime Time". New York Times. Retrieved August 21, 2011. 
  5. ^
  6. ^ Ishimoto, Moye (February 4, 2013). "American Ninja Warrior Tryouts Begin -- Calling All Aspiring Ninjas For Season 5!". G4 Media. The Feed. Retrieved July 23, 2013. 
  7. ^ "Finals for 'American Ninja Warrior' Denver auditions slated for Monday night". Gannett Company. KUSA (TV). May 20, 2013. Retrieved July 23, 2013. 
  8. ^
  9. ^ Levin, Gary (16 September). "'Ninja Warrior' plans USA vs. Japan matchup". USA Today. Retrieved 4 October 2013.