|Rated at||Light Welterweight|
|Height||5 ft 9 in (175 cm)|
|Reach||74 in (188 cm)|
January 24, 1984 |
Washington, District of Columbia
|Wins by KO||16|
Peterson and his brother Anthony Peterson have been regularly featured on ESPN boxing telecasts and their story has been frequently discussed on the show. The Petersons were left without parents at an early age, with their father in prison and their mother suffering personal issues. The brothers were reportedly homeless on the streets of Washington, DC for several years. While homeless at age 10, they were noticed by Barry Hunter, a boxing coach. Over time, Hunter developed their boxing skills while mentoring them and both brothers morphed into amateur boxing stars.
Amateur career 
He became 141 lbs US champion in 2003. He holds wins over Rock Allen in 2003, who beat him twice 2004 in the Olympic box-offs, Mike Alvarado and Andre Dirrell, as well as 2003 amateur world champion Willy Blain (in 2003).
Professional career 
Light Welterweight 
Peterson vs. Bradley 
He fought WBO Light Welterweight champion and Ring No. 1 Light Welterweight Timothy Bradley in late 2009, but lost by unanimous decision.
Peterson vs. Ortiz 
On the undercard of Amir Khan vs. Marcos Maidana, Lamont faced Ring No. 9 Light Welterweight Victor Ortiz on December 11 at the Mandalay Bay Resort & Casino in Las Vegas and fought to a controversial majority draw. Ortiz started the fight strong, but many felt Peterson took the middle and late rounds of the fight, doing enough to earn the decision.
Peterson vs. Khan 
Peterson defeated Ring No. 2 ranked Light Welterweight Amir Khan for the WBA and IBF Light Welterweight titles in Washington, DC on December 10, 2011 by split decision. There was some controversy over the refereeing, due to two point deductions against Khan for pushing Peterson off him. A rematch planned for May 19, 2012 was cancelled following Peterson's positive test for synthetic testosterone. Peterson, who had requested that Khan agree to drug screening prior to the fight, issued a statement saying that he had done nothing wrong and that his team "will vigorously pursue the truth with regards to this matter and continue to fight to protect this young man's character, credibility and all he has accomplished. Once all the facts have been reviewed we have no doubt that he will be vindicated." Peterson has said that he took synthetic testosterone as a valid treatment for a medical condition, though he did not notify the Nevada Athletic Commission. It is now unclear whether Peterson will keep hold of the WBA and IBF Light Welterweight titles as Peterson failed to come to the appeal held by Nevada Athletic Commission.
Peterson has been stripped of the WBA 140-pound title as a result of his failed pre-fight drug test. The vacant belt was on the line when Khan challenged WBC titleholder Danny Garcia on July 14 and lost via fourth round knockout.
Return to the Ring 
Peterson vs. Matthysse 
Professional record 
|31 Wins (16 knockouts, 15 decisions), 2 Losses (1 knockout, 1 decision), 1 Draw|
|Loss||31-2-1||Lucas Matthysse||TKO||3 (12)||2013-05-18||Boardwalk Hall, Atlantic City, New Jersey||Non title fight. Retained IBF Light Welterweight titles.|
|Win||31-1-1||Kendall Holt||TKO||8 (12)||2013-02-22||D.C. Armory, Washington, D.C||Retained IBF Light Welterweight titles.|
|Win||30-1-1||Amir Khan||SD||12||2011-12-10||Walter E. Washington Convention Center, Washington, D.C||Won WBA (Super) & IBF Light Welterweight titles. Stripped of WBA Light Welterweight title due to failed drug test.|
|Win||29-1-1||Victor Cayo||KO||12 (12), 2:46||2011-07-29||Cosmopolitan of Las Vegas, Las Vegas, Nevada||IBF Light Welterweight Title Eliminator.|
|Draw||28-1-1||Victor Ortiz||MD||10||2010-12-11||Mandalay Bay Resort & Casino, Las Vegas, Nevada|
|Win||28–1||Damian Fuller||TKO||7 (10), 1:10||2010-04-10||Hard Rock Hotel and Casino, Las Vegas, Nevada|
|Loss||27–1||Timothy Bradley||UD||12||2009-12-12||Agua Caliente Casino, Rancho Mirage, California||For WBO Light Welterweight title.|
|Win||27–0||Willy Blain||TKO||7 (12), 1:47||2009-04-25||Coliseo Rubén Rodríguez, Bayamon||Won Interim WBO Light Welterweight title.|
|Win||26–0||Lanardo Tyner||UD||10||2008-11-01||Mandalay Bay Resort & Casino, Las Vegas, Nevada||Won interim NABF Light Welterweight title.|
|Win||25–0||Rogelio Castañeda, Jr.||TKO||9 (10), 2:50||2008-07-05||Planet Hollywood Resort and Casino, Las Vegas, Nevada|
|Win||24–0||Antonio Mesquita||UD||10||2008-01-04||Hard Rock Hotel and Casino, Biloxi, Mississippi|
|Win||23–0||Humberto Toledo||KO||1 (8), 2:28||2007-11-17||Casablanca Casino, Providenciales|
|Win||22–0||Frankie Santos||RTD||6 (12), 3:00||2007-09-07||Hard Rock Hotel and Casino, Biloxi, Mississippi||Won WBO NABO Light Welterweight title.|
|Win||21–0||John Brown||TKO||8 (12), 0:28||2007-05-25||DC Armory, Washington, District of Columbia|
|Win||20–0||Juaquin Gallardo||UD||8||2007-01-05||Beau Rivage Resort & Casino, Biloxi, Mississippi|
|Win||19–0||Marteze Logan||UD||8||2006-11-18||Fitzgerald's Casino & Hotel, Tunica, Mississippi|
|Win||18–0||Omar Bernal||TKO||6 (8), 1:19||2006-09-01||Par-A-Dice Hotel and Casino, East Peoria, Illinois|
|Win||17–0||Mario Ramos||UD||10||2006-04-28||4 Bears Casino & Lodge, New Town, North Dakota|
|Win||16–0||Jose Leo Moreno||UD||10||2006-02-17||FedExForum, Memphis, Tennessee||Won vacant WBC USNBC & vacant WBC United States Light Welterweight title.|
|Win||15–0||Johnny Walker||TKO||3 (6)||2005-12-10||Fitzgerald's Casino & Hotel, Tunica, Mississippi|
|Win||14–0||Robert Frankel||UD||8||2005-09-02||Statehouse Convention Center, Little Rock, Arkansas|
|Win||13–0||Meacher Major||UD||6||2005-08-20||Isle of Capri Casino, Biloxi, Mississippi|
|Win||12–0||Miguel Angel Torresillas||UD||10||2005-07-19||Isle of Capri Hotel & Casino, Lula, Mississippi|
|Win||11–0||John Frazier||TKO||1 (6)||2005-06-18||FedExForum, Memphis, Tennessee|
|Win||10–0||Mikel Williams||UD||6||2005-05-22||Silver Star Casino, Choctaw, Mississippi|
|Win||9–0||Orlando Jesus Soto||UD||6||2005-04-30||Isle of Capri Hotel & Casino, Lula, Mississippi|
|Win||8–0||Larry Cunningham||TKO||4||2005-04-23||Fitzgerald's Casino & Hotel, Tunica, Mississippi|
|Win||7–0||Oscar Perez||TKO||1 (4)||2005-04-09||Don Haskins Convention Center, El Paso, Texas|
|Win||6–0||Sheldon Mosley||TKO||2 (6)||2005-02-19||Isle of Capri Hotel & Casino, Lula, Mississippi|
|Win||5–0||Steve Verdin||UD||4||2005-01-22||Fitzgerald's Casino & Hotel, Tunica, Mississippi|
|Win||4–0||Daniel Craycraft||UD||4||2004-12-12||Convention Center, Washington, District of Columbia|
|Win||3–0||Michael Moss||KO||1 (4), 2:20||2004-11-05||Fitzgerald's Casino & Hotel, Tunica, Mississippi|
|Win||2–0||Walter Gilliam||UD||4||2004-10-23||Isle of Capri Hotel & Casino, Lula, Mississippi|
|Win||1–0||Nicholas Dean||TKO||1 (4), 0:22||2004-09-25||FedExForum, Memphis, Tennessee||Professional debut.|
- Punching Petersons pushing for title run – boxing – ESPN. Sports.espn.go.com (2007-05-16). Retrieved on 2011-12-12.
- The Peterson Brothers: An Argument for Boxing. Eastsideboxing.com. Retrieved on 2011-12-12.
- Scott Christ
- Amir Khan-Lamont Peterson rematch off after failed drugs test BBC News. 10 May 2012
- Rafael, Dan. Lamont Peterson issues statement ESPN.com 10 May 2012
- Lamont Peterson – Boxer. Boxrec.com. Retrieved on 2011-07-30.
|New title||WBO Light Welterweight Champion
April 25, 2009 – December 12, 2009
Lost bid for undisputed WBO title
Title next held byJuan Manuel Márquez
|WBA Light Welterweight Champion
December 10, 2011 – July 11, 2012
Status Changed:Champion in Recess
|IBF Light Welterweight Champion
December 10, 2011 – present