Figured I'd get us a running list going of Fighters caught using PEDs
Josh Barnett-4/22/02, following his TKO victory over Randy Couture at UFC 36. Boldenone, Nandrolone, and Fluoxymesterone
Tim Sylvia-10/7/03, following his first-round knockout of Gan McGee at UFC 44. Stanozolol
Kimo Leopoldo-8/16/04, following his TKO loss to Ken Shamrock at UFC 48. Stanozolol
Nate Marquardt-8/15/05, following his unanimous decision win over Ivan Salaverry at Ultimate Fight Night 1. Nandrolone
Kimo Leopoldo-7/20/06, two days before he was scheduled to fight Bas Rutten at WFA: King of the Streets. Stanozolol
Vitor Belfort-10/26/06, following his unanimous decision loss to Dan Henderson at PRIDE 32.4-Hydroxytestosterone
Pawel Nastula-10/26/06, following his submission loss against Josh Barnett at PRIDE 32. Nandrolone
Stephan Bonnar-11/3/06, following his second unanimous decision loss to Forrest Griffin at UFC 62. Boldenone
Kit Cope-1/25/07, following his submission via strikes loss to Rob McCullough at WEC 25. Boldenone
Johnnie Morton-6/13/07, following his 38-second knockout loss against Bernard Ackah at Dynamite!! USA. Unspecified anabolic steroids. Morton’s pre-fight urine test came back as positive for a very elevated T/E (testosterone) ratio — 83.9, when the average for an athlete is 6.
Royce Gracie-6/14/07, following his unanimous decision win over Kazushi Sakuraba at Dynamite!! USA. Nandrolone
Jorge Ortiz-6/26/07, following his TKO loss to Jesse Taylor at Total Combat 21. Nandrolone
Phil Baroni-7/7/07, following his technical submission loss to Frank Shamrock at Strikeforce: Shamrock vs. Baroni. Boldenone and Stanozolol
Sean Sherk-7/19/07, following his unanimous decision win against Hermes Franca at UFC 73. Nandrolone
Hermes Franca-7/19/07, following his unanimous decision loss to Sean Sherk at UFC 73. Drostanolone
Anthony Torres-10/3/07, following his TKO loss to Jess Liaudin at UFC 75. Boldenone. Torres was the first fighter to be caught by a UFC-administered steroid test.
Bill Mahood-10/15/07, following his submission via rib injury loss to Bobby Southworth at Strikeforce’s first Playboy Mansion show. Drostanolone
Adam Smith-10/17/07, following his unanimous decision loss to Dewey Cooper at Strikeforce’s first Playboy Mansion show. Nandrolone and Stanozolol — as well as cocaine and marijuana.
Jason Winthers-11/19/07, following his TKO loss against Richard Blake at Rebel Fights: Unleashed Fury. Stanozolol and the veterinary steroid Trenbolone — as well as methadone and morphine.
Ruben Villareal-11/28/07, following his TKO loss to Jimmy Ambriz at WCO: Kerr vs. Gavin. 4-Hydroxytestosterone
Dennis Hallman-11/29/07, following his submission win over Jeremiah Metcalf at Strikeforce: Four Men Enter, One Man Survives. Drostanolone and Nandrolone
Alexander Crispim-11/29/07, following his unanimous decision win over Clint Coronel at Strikeforce: Four Men Enter, One Man Survives. Desoxymethyltestosterone
Carina Damm-5/15/08, following her submission win over Sophie Bagherdai at Femme Fatale Fighting 4. Nandrolone
Alexandre Nogueira-7/7/08, following his TKO loss to Jose Aldo at WEC 34. Boldenone
Antonio "Bigfoot" Silva-8/21/08, following his TKO win over Justin Eilers at EliteXC: Unfinished Business. Boldenone
Edwin Dewees-8/21/08, following his TKO loss against Antonio Rogerio Nogueira at Affliction: Banned. Nandrolone
Chris Leben-11/3/08, following his decision loss to Michael Bisping at UFC 89. Stanozolol
Kirill Sidelnikov-3/3/09, following his TKO loss to Paul Buentello at Affliction: Day of Reckoning. Stanozolol
Ken Shamrock-3/11/09, following his submission win over super-heavyweight tubbaguts Ross Clifton at WarGods: Valentine’s Eve Massacre. 19-Norandrosterone, 19-Noretiocholanolone, and Stanozolol
Josh Barnett-7/21/09, 11 days before he was scheduled to fight Fedor Emelianenko in the main event of Affliction: Trilogy. Drostanolone
Cole Province-8/17/09, following his unanimous decision win over Fredson Paixao at WEC 42. Methasterone
Chael Sonnen-9/18/10, following his submission loss to Anderson Silva at UFC 117. T/E (testosterone/epitestosterone) ratio came in at over four times the legal threshold
Vinicus Quieroz-11/2/10, following his submission loss to Rob Broughton at UFC 120. Stanozolol
James Irvin-3/2/11, following his submission loss to Jorge Oliveira at Tachi Palace Fights 7. Epitrenbolone
Thiago Silva-3/29/11, following his unanimous decision win over Brandon Vera at UFC 125. “submitted an adulterated and/or substituted specimen for testing for the urinalysis and later at a hearing admitted to an attempt to mask steroid use.â€
Nate Marquardt-7/25/11, after failing his pre-fight medicals for UFC on Versus 4, where he was supposed to face Rick Story. Elevated testosterone
Cris "Cyborg" Justino-1/6/12, following her knockout win against Hiroko Yamanaka at Strikeforce: Melendez vs. Masvidal. Stanozolol
Muhammad "King Mo" Lawal-1/17/12, following his knockout win against Lorenz Larkin at Strikeforce: Rockhold vs. Jardine. Drostanalone
Alistair Overeem-4/4/12, following the first random drug-test of his career. Testosterone/epitestosterone ratio of 14:1
Rafael "Feijao" Cavalcante-6/15/12, following his 33-second submission of Mike Kyle at Strikeforce: Barnett vs. Cormier. Stanozolol
Stephan Bonnar-11/2/12, following his first-round TKO loss to Anderson Silva at UFC 153. Bonnar retired from MMA immediately after the fight. Drostanolone
Joey Beltran-1/10/13, following his decision win over Igor Pokrajac at UFC on FX 6. Nandrolone
Rousimar Palhares-1/10/13, following his first-round TKO loss to Hector Lombard at UFC on FX 6. Elevated testosterone
Thiago Tavares- 2/6/13, following his first-round knockout loss to Khabib Nurmagomedov at UFC on FX 7. Drostanolone
Lavar Johnson-3/19/13, following his decision loss to Brendan Schaub at UFC 157. Elevated testosterone
Brian Bowles-6/7/13, following his TKO loss to George Roop at UFC 160. Elevated T/E ratio
Ben Rothwell-10/3/13, following his TKO win over Brandon Vera at UFC 164. Elevated testosterone.
Robert Drysdale-10/28/13, following an out-of-competition drug test. T/E ratio of 19.4:1, more than three times the NSAC’s testing threshold of 6:1
Doug Marshall-12/16/13, following his knockout loss to Alexander Shlemenko at Bellator 109. An “undisclosed banned substance,†that was later revealed to be elevated testosterone
Antonio "Bigfoot" Silva-12/17/13, following his draw against Mark Hunt at UFC Fight Night 33. Elevated testosterone
Vitor Belfort- 2/7/14, Following a random drug test administered by the NSAC; the results were never publicly released, but Belfort admitted to failing the test on June 6th, in advance of a NSAC licensing hearing. Elevated testosterone
Herman Terrado-4/24/14, following his majority draw against Justin Baesman at Bellator 115. Drostanolone
Chael Sonnen-5/14, Following a random drug test administered by the NSAC, ahead of a scheduled bout with Vitor Belfort at UFC 175. anastrozole, clomifene, human chorionic gonadotropin (hCG), human growth hormone (HGH) and recombinant human erythropoietin(EPO)
Ali Bagautinov-6/2/14, following an out-of-competition drug test ahead of his scheduled bout with Demetrious Johnson at UFC 174. EPO
Robert Drysdale-7/30/14, following his first-round submission win over Keith Berish at the TUF 19 Finale. T/E ratio of 12:1, twice the NSAC’s testing threshold of 6:1
Kevin Casey-7/30/14, following his first-round TKO win against Bubba Bush at UFC 175. Drostanolone
Mike King-8/13/14, following his second-round technical submission loss to Cathal Pendred at UFC Fight Night 46 in Dublin. Nandrolone
Brian Ortega-8/22/14, following his first-round submission win over Mike De La Torre at UFC on FOX 12. Drostanolone
Piotor Hallman-10/6/14, following his split-decision loss to Gleison Tibau at UFC Fight Night 51. Drostanolone
Keith Berry-10/31/14, following his split decision win against Joe Pacheco at Bellator 127. Elevated testosterone
Nick Moghaddam-10/31/14, following his unanimous decision loss to Ray Sloan at Bellator 127. Elevated testosterone
Jon Fitch-12/13/14, following his submission loss to Rousimar Palhares at WSOF 16. Elevated testosterone
Hector Lombard-1/3/15, following his unanimous decision win against Josh Burkman at UFC 182. desoxymethyltestosterone(DMT)
Anderson Silva-1/9/15 following a pre-fight drug screening ahead of his UFC 183 bout with Nick Diaz. Drostanolone and Androstane
Josh Barnett-4/22/02, following his TKO victory over Randy Couture at UFC 36. Boldenone, Nandrolone, and Fluoxymesterone
Tim Sylvia-10/7/03, following his first-round knockout of Gan McGee at UFC 44. Stanozolol
Kimo Leopoldo-8/16/04, following his TKO loss to Ken Shamrock at UFC 48. Stanozolol
Nate Marquardt-8/15/05, following his unanimous decision win over Ivan Salaverry at Ultimate Fight Night 1. Nandrolone
Kimo Leopoldo-7/20/06, two days before he was scheduled to fight Bas Rutten at WFA: King of the Streets. Stanozolol
Vitor Belfort-10/26/06, following his unanimous decision loss to Dan Henderson at PRIDE 32.4-Hydroxytestosterone
Pawel Nastula-10/26/06, following his submission loss against Josh Barnett at PRIDE 32. Nandrolone
Stephan Bonnar-11/3/06, following his second unanimous decision loss to Forrest Griffin at UFC 62. Boldenone
Kit Cope-1/25/07, following his submission via strikes loss to Rob McCullough at WEC 25. Boldenone
Johnnie Morton-6/13/07, following his 38-second knockout loss against Bernard Ackah at Dynamite!! USA. Unspecified anabolic steroids. Morton’s pre-fight urine test came back as positive for a very elevated T/E (testosterone) ratio — 83.9, when the average for an athlete is 6.
Royce Gracie-6/14/07, following his unanimous decision win over Kazushi Sakuraba at Dynamite!! USA. Nandrolone
Jorge Ortiz-6/26/07, following his TKO loss to Jesse Taylor at Total Combat 21. Nandrolone
Phil Baroni-7/7/07, following his technical submission loss to Frank Shamrock at Strikeforce: Shamrock vs. Baroni. Boldenone and Stanozolol
Sean Sherk-7/19/07, following his unanimous decision win against Hermes Franca at UFC 73. Nandrolone
Hermes Franca-7/19/07, following his unanimous decision loss to Sean Sherk at UFC 73. Drostanolone
Anthony Torres-10/3/07, following his TKO loss to Jess Liaudin at UFC 75. Boldenone. Torres was the first fighter to be caught by a UFC-administered steroid test.
Bill Mahood-10/15/07, following his submission via rib injury loss to Bobby Southworth at Strikeforce’s first Playboy Mansion show. Drostanolone
Adam Smith-10/17/07, following his unanimous decision loss to Dewey Cooper at Strikeforce’s first Playboy Mansion show. Nandrolone and Stanozolol — as well as cocaine and marijuana.
Jason Winthers-11/19/07, following his TKO loss against Richard Blake at Rebel Fights: Unleashed Fury. Stanozolol and the veterinary steroid Trenbolone — as well as methadone and morphine.
Ruben Villareal-11/28/07, following his TKO loss to Jimmy Ambriz at WCO: Kerr vs. Gavin. 4-Hydroxytestosterone
Dennis Hallman-11/29/07, following his submission win over Jeremiah Metcalf at Strikeforce: Four Men Enter, One Man Survives. Drostanolone and Nandrolone
Alexander Crispim-11/29/07, following his unanimous decision win over Clint Coronel at Strikeforce: Four Men Enter, One Man Survives. Desoxymethyltestosterone
Carina Damm-5/15/08, following her submission win over Sophie Bagherdai at Femme Fatale Fighting 4. Nandrolone
Alexandre Nogueira-7/7/08, following his TKO loss to Jose Aldo at WEC 34. Boldenone
Antonio "Bigfoot" Silva-8/21/08, following his TKO win over Justin Eilers at EliteXC: Unfinished Business. Boldenone
Edwin Dewees-8/21/08, following his TKO loss against Antonio Rogerio Nogueira at Affliction: Banned. Nandrolone
Chris Leben-11/3/08, following his decision loss to Michael Bisping at UFC 89. Stanozolol
Kirill Sidelnikov-3/3/09, following his TKO loss to Paul Buentello at Affliction: Day of Reckoning. Stanozolol
Ken Shamrock-3/11/09, following his submission win over super-heavyweight tubbaguts Ross Clifton at WarGods: Valentine’s Eve Massacre. 19-Norandrosterone, 19-Noretiocholanolone, and Stanozolol
Josh Barnett-7/21/09, 11 days before he was scheduled to fight Fedor Emelianenko in the main event of Affliction: Trilogy. Drostanolone
Cole Province-8/17/09, following his unanimous decision win over Fredson Paixao at WEC 42. Methasterone
Chael Sonnen-9/18/10, following his submission loss to Anderson Silva at UFC 117. T/E (testosterone/epitestosterone) ratio came in at over four times the legal threshold
Vinicus Quieroz-11/2/10, following his submission loss to Rob Broughton at UFC 120. Stanozolol
James Irvin-3/2/11, following his submission loss to Jorge Oliveira at Tachi Palace Fights 7. Epitrenbolone
Thiago Silva-3/29/11, following his unanimous decision win over Brandon Vera at UFC 125. “submitted an adulterated and/or substituted specimen for testing for the urinalysis and later at a hearing admitted to an attempt to mask steroid use.â€
Nate Marquardt-7/25/11, after failing his pre-fight medicals for UFC on Versus 4, where he was supposed to face Rick Story. Elevated testosterone
Cris "Cyborg" Justino-1/6/12, following her knockout win against Hiroko Yamanaka at Strikeforce: Melendez vs. Masvidal. Stanozolol
Muhammad "King Mo" Lawal-1/17/12, following his knockout win against Lorenz Larkin at Strikeforce: Rockhold vs. Jardine. Drostanalone
Alistair Overeem-4/4/12, following the first random drug-test of his career. Testosterone/epitestosterone ratio of 14:1
Rafael "Feijao" Cavalcante-6/15/12, following his 33-second submission of Mike Kyle at Strikeforce: Barnett vs. Cormier. Stanozolol
Stephan Bonnar-11/2/12, following his first-round TKO loss to Anderson Silva at UFC 153. Bonnar retired from MMA immediately after the fight. Drostanolone
Joey Beltran-1/10/13, following his decision win over Igor Pokrajac at UFC on FX 6. Nandrolone
Rousimar Palhares-1/10/13, following his first-round TKO loss to Hector Lombard at UFC on FX 6. Elevated testosterone
Thiago Tavares- 2/6/13, following his first-round knockout loss to Khabib Nurmagomedov at UFC on FX 7. Drostanolone
Lavar Johnson-3/19/13, following his decision loss to Brendan Schaub at UFC 157. Elevated testosterone
Brian Bowles-6/7/13, following his TKO loss to George Roop at UFC 160. Elevated T/E ratio
Ben Rothwell-10/3/13, following his TKO win over Brandon Vera at UFC 164. Elevated testosterone.
Robert Drysdale-10/28/13, following an out-of-competition drug test. T/E ratio of 19.4:1, more than three times the NSAC’s testing threshold of 6:1
Doug Marshall-12/16/13, following his knockout loss to Alexander Shlemenko at Bellator 109. An “undisclosed banned substance,†that was later revealed to be elevated testosterone
Antonio "Bigfoot" Silva-12/17/13, following his draw against Mark Hunt at UFC Fight Night 33. Elevated testosterone
Vitor Belfort- 2/7/14, Following a random drug test administered by the NSAC; the results were never publicly released, but Belfort admitted to failing the test on June 6th, in advance of a NSAC licensing hearing. Elevated testosterone
Herman Terrado-4/24/14, following his majority draw against Justin Baesman at Bellator 115. Drostanolone
Chael Sonnen-5/14, Following a random drug test administered by the NSAC, ahead of a scheduled bout with Vitor Belfort at UFC 175. anastrozole, clomifene, human chorionic gonadotropin (hCG), human growth hormone (HGH) and recombinant human erythropoietin(EPO)
Ali Bagautinov-6/2/14, following an out-of-competition drug test ahead of his scheduled bout with Demetrious Johnson at UFC 174. EPO
Robert Drysdale-7/30/14, following his first-round submission win over Keith Berish at the TUF 19 Finale. T/E ratio of 12:1, twice the NSAC’s testing threshold of 6:1
Kevin Casey-7/30/14, following his first-round TKO win against Bubba Bush at UFC 175. Drostanolone
Mike King-8/13/14, following his second-round technical submission loss to Cathal Pendred at UFC Fight Night 46 in Dublin. Nandrolone
Brian Ortega-8/22/14, following his first-round submission win over Mike De La Torre at UFC on FOX 12. Drostanolone
Piotor Hallman-10/6/14, following his split-decision loss to Gleison Tibau at UFC Fight Night 51. Drostanolone
Keith Berry-10/31/14, following his split decision win against Joe Pacheco at Bellator 127. Elevated testosterone
Nick Moghaddam-10/31/14, following his unanimous decision loss to Ray Sloan at Bellator 127. Elevated testosterone
Jon Fitch-12/13/14, following his submission loss to Rousimar Palhares at WSOF 16. Elevated testosterone
Hector Lombard-1/3/15, following his unanimous decision win against Josh Burkman at UFC 182. desoxymethyltestosterone(DMT)
Anderson Silva-1/9/15 following a pre-fight drug screening ahead of his UFC 183 bout with Nick Diaz. Drostanolone and Androstane