Strikeforce Champions & Events Division Champion Defeated Date Event Heavyweight 206 to 266 Alistair Overeem © Def Brett Rogers May 15, 2010 Strikeforce 31: Heavy Artillery Heavyweight 206 to 265 Alistair Overeem © New Paul Buentello November 16, 2007 Strikeforce 8: Four Men Enter, One Man Survives Division Champion Defeated Date Event Light Heavyweight 186 to 206 Dan Henderson © New Rafael Cavalcante © March 5, 2011 Strikeforce 46: Feijao vs. Henderson Light Heavyweight 186 to 206 Rafael Cavalcante © New Muhammed Lawal © August 21, 2010 Strikeforce 37: Houston Light Heavyweight 186 to 206 Muhammed Lawal © New Gegard Mousasi © April 17, 2010 Strikeforce 30: Nashville Light Heavyweight 186 to 206 Gegard Mousasi © New Renato Sobral © August 15, 2009 Strikeforce 21: Carano vs. Cyborg Light Heavyweight 186 to 205 Renato Sobral © New Bobby Southworth © November 21, 2008 Strikeforce 16: Destruction Light Heavyweight 186 to 205 Bobby Southworth © Def Anthony Ruiz June 27, 2008 Strikeforce 12: Melendez vs. Thomson Light Heavyweight 186 to 205 Bobby Southworth © New Vernon White December 8, 2006 Strikeforce 4: Triple Threat Division Champion Defeated Date Event Middleweight 171 to 185 Luke Rockhold © Def Tim Kennedy July 14, 2012 Strikeforce 61: Rockhold vs. Kennedy Middleweight 171 to 185 Luke Rockhold © Def Keith Jardine January 7, 2012 Strikeforce 58: Rockhold vs. Jardine Middleweight 171 to 185 Luke Rockhold © New Ronaldo Souza © September 10, 2011 Strikeforce 54: Barnett vs. Kharitonov Middleweight 171 to 185 Ronaldo Souza © Def Robbie Lawler January 29, 2011 Strikeforce 43: Diaz vs. Cyborg Middleweight 171 to 185 Ronaldo Souza © New Tim Kennedy August 21, 2010 Strikeforce 37: Houston Middleweight 171 to 185 Jake Shields © Def Dan Henderson April 17, 2010 Strikeforce 30: Nashville Middleweight 171 to 185 Jake Shields © New Jason Miller November 7, 2009 Strikeforce 24: Fedor vs. Rogers Middleweight 171 to 185 Cung Le © New Frank Shamrock © March 29, 2008 Strikeforce 11: Shamrock vs. Le Middleweight 171 to 185 Frank Shamrock © New Phil Baroni June 22, 2007 Strikeforce 6: Shamrock vs. Baroni Division Champion Defeated Date Event Welterweight 156 to 170 Tarec Saffiedine © New Nate Marquardt © January 12, 2013 Strikeforce 63: Marquardt vs. Saffiedine Welterweight 156 to 170 Nate Marquardt © New Tyron Woodley July 14, 2012 Strikeforce 61: Rockhold vs. Kennedy Welterweight 156 to 170 Nick Diaz © Def Paul Daley April 9, 2011 Strikeforce 48: Diaz vs. Daley Welterweight 156 to 170 Nick Diaz © Def Evangelista Santos January 29, 2011 Strikeforce 43: Diaz vs. Cyborg Welterweight 156 to 170 Nick Diaz © Def K.J. Noons October 9, 2010 Strikeforce 38: Diaz vs. Noons II Welterweight 156 to 170 Nick Diaz © New Marius Žaromskis January 30, 2010 Strikeforce 27: Miami Division Champion Defeated Date Event Lightweight 146 to 155 Gilbert Melendez © Def Josh Thomson May 19, 2012 Strikeforce 60: Barnett vs. Cormier Lightweight 146 to 155 Gilbert Melendez © Def Jorge Masvidal December 17, 2011 Strikeforce 57: Melendez vs. Masvidal Lightweight 146 to 155 Gilbert Melendez © Def Tatsuya Kawajiri April 9, 2011 Strikeforce 48: Diaz vs. Daley Lightweight 146 to 155 Gilbert Melendez © Def Shinya Aoki April 17, 2010 Strikeforce 30: Nashville Lightweight 146 to 155 Gilbert Melendez © New Josh Thomson © December 19, 2009 Strikeforce 26: Evolution Lightweight 146 to 155 Gilbert Melendez I© Mitsuhiro Ishida August 15, 2009 Strikeforce 21: Carano vs. Cyborg Lightweight 146 to 155 Gilbert Melendez I© Rodrigo Damm April 11, 2009 Strikeforce 17: Shamrock vs. Diaz Lightweight 146 to 155 Josh Thomson © New June 27, 2008 Strikeforce 12: Melendez vs. Thomson Lightweight 146 to 155 Gilbert Melendez © Def Gabe Lemley March 29, 2008 Strikeforce 11: Shamrock vs. Le Lightweight 146 to 155 Gilbert Melendez © New Clay Guida © June 9, 2006 Strikeforce 2: Revenge Lightweight 146 to 155 Clay Guida © New Josh Thomson March 10, 2006 Strikeforce 1: Shamrock vs. Gracie Division Champion Defeated Date Event Featherweight 136 to 145 Cristiane Santos © Def Hiroko Yamanaka December 17, 2011 Strikeforce 57: Melendez vs. Masvidal Featherweight 136 to 145 Cristiane Santos © Def Jan Finney June 26, 2010 Strikeforce 34: Fedor vs. Werdum Featherweight 136 to 145 Cristiane Santos © Def Marloes Coenen January 30, 2010 Strikeforce 27: Miami Featherweight 136 to 145 Cristiane Santos © New Gina Carano August 15, 2009 Strikeforce 21: Carano vs. Cyborg Division Champion Defeated Date Event Bantamweight 126 to 135 Ronda Rousey © Def Sarah Kaufman August 18, 2012 Strikeforce 62: Rousey vs. Kaufman Bantamweight 126 to 135 Ronda Rousey © New Miesha Tate © March 3, 2012 Strikeforce 59: Tate vs. Rousey Bantamweight 126 to 135 Miesha Tate © New Marloes Coenen July 30, 2011 Strikeforce 52: Fedor vs. Henderson Bantamweight 126 to 135 Marloes Coenen © Def Liz Carmouche March 5, 2011 Strikeforce 46: Feijao vs. Henderson Bantamweight 126 to 135 Marloes Coenen © New Sarah Kaufman © October 9, 2010 Strikeforce 38: Diaz vs. Noons II Bantamweight 126 to 135 Sarah Kaufman © Def Roxanne Modafferi July 23, 2010 Strikeforce 35: del Rosario vs. Mahe Bantamweight 126 to 135 Sarah Kaufman © New Takayo Hashi February 26, 2010 Strikeforce 28: Kaufman vs. Hashi Strikeforce Events Date Event January 12, 2013 Strikeforce 63: Marquardt vs. Saffiedine August 18, 2012 Strikeforce 62: Rousey vs. Kaufman July 14, 2012 Strikeforce 61: Rockhold vs. Kennedy May 19, 2012 Strikeforce 60: Barnett vs. Cormier March 3, 2012 Strikeforce 59: Tate vs. Rousey January 7, 2012 Strikeforce 58: Rockhold vs. Jardine December 17, 2011 Strikeforce 57: Melendez vs. Masvidal November 18, 2011 Strikeforce 56: Britt vs. Sayers September 23, 2011 Strikeforce 55: Larkin vs. Rossborough September 10, 2011 Strikeforce 54: Barnett vs. Kharitonov August 12, 2011 Strikeforce 53: Gurgel vs. Duarte July 30, 2011 Strikeforce 52: Fedor vs. Henderson July 22, 2011 Strikeforce 51: Voelker vs. Bowling III June 24, 2011 Strikeforce 50: Fodor vs. Terry June 18, 2011 Strikeforce 49: Overeem vs. Werdum April 9, 2011 Strikeforce 48: Diaz vs. Daley April 1, 2011 Strikeforce 47: Wilcox vs. Damm March 5, 2011 Strikeforce 46: Feijao vs. Henderson February 18, 2011 Strikeforce 45: Beerbohm vs. Healy February 12, 2011 Strikeforce 44: Fedor vs. Silva January 29, 2011 Strikeforce 43: Diaz vs. Cyborg January 7, 2011 Strikeforce 42: Woodley vs. Saffiedine December 4, 2010 Strikeforce 41: Henderson vs. Babalu II November 19, 2010 Strikeforce 40: Wilcox vs. Ribeiro October 22, 2010 Strikeforce 39: Bowling vs. Voelker October 9, 2010 Strikeforce 38: Diaz vs. Noons II August 21, 2010 Strikeforce 37: Houston August 13, 2010 Strikeforce 36: Riggs vs. Taylor July 23, 2010 Strikeforce 35: del Rosario vs. Mahe June 26, 2010 Strikeforce 34: Fedor vs. Werdum June 16, 2010 Strikeforce 33: Los Angeles May 21, 2010 Strikeforce 32: Lindland vs. Casey May 15, 2010 Strikeforce 31: Heavy Artillery April 17, 2010 Strikeforce 30: Nashville March 26, 2010 Strikeforce 29: Johnson vs. Mahe February 26, 2010 Strikeforce 28: Kaufman vs. Hashi January 30, 2010 Strikeforce 27: Miami December 19, 2009 Strikeforce 26: Evolution November 20, 2009 Strikeforce 25: Woodley vs. Bears November 7, 2009 Strikeforce 24: Fedor vs. Rogers November 6, 2009 Strikeforce 23: Gurgel vs. Evangelista September 25, 2009 Strikeforce 22: Kennedy vs. Cummings August 15, 2009 Strikeforce 21: Carano vs. Cyborg June 19, 2009 Strikeforce 20: Villasenor vs. Cyborg June 6, 2009 Strikeforce 19: Lawler vs. Shields May 15, 2009 Strikeforce 18: Evangelista vs. Aina April 11, 2009 Strikeforce 17: Shamrock vs. Diaz November 21, 2008 Strikeforce 16: Destruction October 3, 2008 Strikeforce 15: Payback September 20, 2008 Strikeforce 14: At The Mansion II September 13, 2008 Strikeforce 13: Young Guns III June 27, 2008 Strikeforce 12: Melendez vs. Thomson March 29, 2008 Strikeforce 11: Shamrock vs. Le February 23, 2008 Strikeforce 10: At The Dome February 1, 2008 Strikeforce 9: Young Guns II November 16, 2007 Strikeforce 8: Four Men Enter, One Man Survives September 29, 2007 Strikeforce 7: Playboy Mansion June 22, 2007 Strikeforce 6: Shamrock vs. Baroni February 10, 2007 Strikeforce 5: Young Guns December 8, 2006 Strikeforce 4: Triple Threat October 7, 2006 Strikeforce 3: Tank vs. Buentello June 9, 2006 Strikeforce 2: Revenge March 10, 2006 Strikeforce 1: Shamrock vs. Gracie.