Ultimate Fighting Championship Two of Hallman's biggest achievements are his wins (both by submission in a combined 38 seconds) over
UFC Hall of Famer and former welterweight champion
Matt Hughes. Their first fight was in 1998 at
Extreme Challenge 21, the second in December 2000 at
UFC 29: Defense of the Belts.
Title shot After his second victory over Matt Hughes, Hallman moved down in weight and fought Hughes' teammate
Jens Pulver for the
lightweight UFC championship in September 2001. Both Hallman and Pulver wrestled at the high school level in Washington. Hallman claimed to know Pulver since high school and expressed dislike toward the fighter. Although Pulver denied knowing Hallman personally, he knew of Hallman through their state champion wrestling careers (at different weight classes). During the fight Hallman attempted an
armbar on Pulver (the same move he used to defeat Hughes in their second meeting), but Pulver countered the technique and followed with a left hook that landed flush on Hallman's chin, staggering him. Hallman was not able to recover completely from the blow, fighting very passively for the remainder of the bout (which eventually resulted in a unanimous decision loss). Hallman later stated in interviews that he simply wanted to survive the fight after receiving the blow.
Return to the UFC Hallman made his return to the UFC against
John Howard on December 5, 2009, at
The Ultimate Fighter 10 Finale. After controlling Howard on the ground for most of the bout, Hallman lost via KO at 4:55 of the third round. Hallman then announced that he would try and move down to lightweight. Hallman then signed to face
Ben Saunders in a welterweight bout on August 7, 2010, at
UFC 117. Hallman defeated Saunders via unanimous decision. Hallman faced returning UFC veteran
Karo Parisyan on November 20, 2010, at
UFC 123. Hallman defeated Parisyan via TKO due to strikes in the first round after he dropped Parisyan with a stiff right, then finished with hammerfists. Hallman was expected to face
TJ Waldburger on March 26, 2011, at
UFC Fight Night 24. However, Hallman was forced out of the bout with a knee injury and replaced by
Johny Hendricks. On January 15, 2011, it was announced that Hallman has extended his UFC contract for four additional UFC fights. Hallman faced
Brian Ebersole on August 6, 2011, at
UFC 133. He lost the fight via TKO in the first round. Wearing particularly skimpy blue shorts during the fight, in a ground battle Hallman's left testicle was briefly exposed, eliciting chants of "Put some clothes on" from the crowd and call for regulation of fighter shorts from UFC President
Dana White. Hallman has since stated that he wore the shorts as a result of losing a bet. Hallman next faced
John Makdessi on December 10, 2011, at
UFC 140. In the lead up to the bout, Hallman missed the 156 pound weight limit by weighing in at 158.5, resulting in a fine and the fight being changed to a catchweight bout. Hallman defeated Makdessi via submission in the first round. Hallman was expected to face
Tony Ferguson on May 5, 2012, at
UFC on Fox 3. However, Hallman was forced out of the bout with an injury and replaced by
Thiago Tavares. Hallman was expected to face
Thiago Tavares on September 1, 2012, at
UFC 151. However, after
UFC 151 was cancelled, Hallman/Tavares was rescheduled to take place on October 5, 2012, at
UFC on FX 5. After the weigh-ins of
UFC on FX 5 Hallman was 7 lbs. over the 156 lb. weight limit and Tavares said if Hallman could make 3 lbs. over the weight limit he would agree to fight him but Hallman could not and the bout was scrapped from the card. Hallman said he missed weight because of personal issues at home and both him and Tavares were paid their show money. Hallman was released from the UFC for missing weight twice in a row.
World Series Of Fighting Hallman fought
Jon Fitch on July 5, 2014, at
World Series of Fighting 11: Gaethje vs. Newell. He lost the fight via unanimous decision.
ProFC Hallman faced with Russian Hand-to-hand champion and former Bellator MMA fighter
Michail Tsarev on November 1, 2014. He lost the fight via TKO.
League S-70 Hallman faced to Mikhail Kolobegov on August 29, 2015, at League S-70: Russia vs. World. He lost the fight via TKO (punches). ==Boxing career==