On February 27, 2010 Combate Xtremo held their 10th  fighting event at Boxing Coliseum in Santo Domingo, Dominican Republic. There were 8 fights on the card, and for the first time Combate Xtremo introduced the Welterweight Title Fight between Oscar Sosa (Dominican Republic) and Caleb Ball (United States). Oscar Sosa became the first Champion by split decision after five tough rounds.

The event itself was very successful. It gathered nearly 6000 people and proved that MMA is extremely popular in Dominican Republic. Combate Xtremo is preparing their next event on June 18, 2010.

Here are the fights' results: * Manuel Botis defeated Sury Montero * Herve Michaels (USA) defeated Abraham Pichardo * Wascar Cruz defeated Eduardo De Leon * Jose Tezanos defeated Angel Lopez * Josh Matheney (USA) defeated Roberto Mendez * Ramon Martinez defeated Kenny Gaudreau (USA) * Oscar Sosa defeated Caleb Ball (USA)