Cosmo Alexandre

Alexandre, who is named after his grandfather, was born in São Vicente, São Paulo and raised in Santos, Sao Paulo. Growing up, Alexandre competed in football and was talented, going on to play professionally, but ultimately chose to focus on a career in Muay Thai. Alexandre began training in Muay Thai at the age of 19.

Alexandre began his professional kickboxing career in October 2004 in his native Brazil. In 2007 he experienced the highs and lows of the kickboxing world as he won the WMC Middleweight (160 lbs) Intercontinental Championship and the WPMF Middleweight (160 lbs) World Championship, only to lose them later in the year.

In 2008, Alexandre became a contestant on the It's Showtime Reality TV series. He made it to the finals against Sem Braan, losing via majority decision.

In 2009, Alexandre picked up his biggest kickboxing win as he defeated John Wayne Parr via TKO in the second round at Evolution 17: King of the Square Ring. He fought a total of three times that evening, winning the Evolution 17 King's Cup Qualifying tournament title in the process.

He defeated Nampon PKMuaythai via unanimous decision in the lackluster main event of Lion Fight 11 in Las Vegas on 20 September 2013.

He was scheduled to have his rubber match with John Wayne Parr at Powerplay Promotions 22 in Melbourne, Australia on 8 November 2013. However, he did not apply for his visa in time and was unable to enter the country and so he was replaced by New Zealand's Brad Riddell who Parr defeated by unanimous decision.

He defeated Mark Holst via UD in the main event of Lion Fight 15 in Ledyard, Connecticut, on 23 May 2014.

In 2015, Alexandre defeated John Wayne Parr in the long-awaited rubber match by unanimous decision at Lion Fight 25. He won the Lion Fight Super Middleweight Belt.

Alexandre defeated Elliot Compton by second-round knockout at ONE: Heroes of Honor on 20 April 2018.

Alexandre lost to Nieky Holzken by second-round knockout at ONE: Warrior's Dream on 17 November 2018.

Alexandre faced Juan Cervantes on 19 November 2022, at ONE on Prime Video 4. He won the fight via technical knockout in the second round and announced his retirement during the post-fight interview.

Bellator Fighting Championships

In August 2011, Alexandre signed a multi-fight deal with the Bellator Fighting Championships, a United States-based mixed martial arts promotion.

Alexandre had a disappointing debut in October 2011 as he lost to Josh Quayhagen via decision at Bellator 52. He subsequently rebounded with a current streak of 5 wins in a row (all in Bellator)- a TKO win over Avery McPhatter at Bellator 58; a decision win over Lowrant-T Nelson at Bellator 67; a TKO win over Harry Johnson at Bellator 73; a TKO win due to doctor's stoppage over Mike Bannon at Bellator 77; and a decision win over Josh Quayhagen, avenging his only loss in a rematch at Bellator 80. He amassed a 5-1 record in Bellator.

Additionally, Alexandre trained extensively with Rashad Evans and K-1 fighter Tyrone Spong leading up to Evans' fight at UFC 133 with Tito Ortiz.

World Series of Fighting

In November 2015, Alexandre signed an exclusive deal with World Series of Fighting. However, the promotion never used Alexandre and he was eventually allowed to fight elsewhere.

ONE Championship

Alexandre ended up signing a six-fight contract with the ONE Championship in 2018.

After nearly three years away from MMA action, Alexandre faced Sage Northcutt on 17 May 2019 at the ONE Championship: Enter the Dragon. He won the fight via knockout just 29 seconds into the first round.

On 11 August 2020, Alexandre revealed that he had signed a new, six-fight contract with ONE Championship. Alexandre faced Juan Cervantes in a Muay Thai bout, his first fight after re-signing with the promotion, at ONE on Prime Video 4 on 19 November 2022. He won the fight by a second-round technical knockout. He announced his retirement after the fight.

• ONE Championship
  • Performance of the Night (one time) vs. Juan Cervantes
• World version W5
  • 2016 W5 World Champion -75 kg
  • 2014 W5 Kickboxing World Champion -71 kg
• A.M.T.I.
  • 2015 A.M.T.I. (162lbs) South American
• Lion Fight
  • 2015 Lion Fight Promotions Super middleweight Champion
• It's Showtime
  • 2010 It's Showtime 77MAX World Championship (1 defense)
  • 2008 It's Showtime Reality finalist
• World Muaythai Council
  • 2010 WMC/S1 King's Cup Challenger Tournament runner up
  • 2009 WMC/S1 King's Cup Challenger Tournament Champion
  • 2007 WMC Intercontinental Champion (160 lbs)
• Evolution 17
  • 2009 Evolution 17 Winner King's Cup Qualifying tournament champion
• World Professional Muaythai Federation
  • 2007 WPMF Middleweight World Champion (160 lbs)