Reis earned the title over three head-to-head rounds versus strong and crafty Cullum.

Reis took Cullum down repeatedly, but was unable to cinch a submission through Cullum’s defense.

Cullum landed several strikes; but, Reis’s takedowns and ground aggression convinced the judges.

Shane DelRosario (5-0) notched another stoppage in his belt in a second-round TKO of Carl Seumanutafa (4-1) at 1:07.

DelRosario floored Seumanutafa with a left hook as he rose from a takedown attempt and stuck a pair of punches in his face before the referee ended the fight.

Muay Thai champion Malaipet Team Diamond (3-3) continues to find the transition to MMA tough with a third-round TKO loss to “Tarzan” David Douglas (4-1).

After absorbing crippling leg kicks for two rounds, “Tarzan” caught Malaipet mid-flying knee and put the kickboxer on his back for a desparate G’n'P onslaught from full mount that convinced the referee to step in.

“El Cucui” Jaime Jara (20-5) won a split decision over middleweight Givanildo Santana (11-1) by scores of 29-28 twice for Jara and 29-28 once for Santana.

Middleweight Erik Apple (10-1) tapped Matt Makowski (3-1) in a rear naked choke at 2:04 of round two in Apple’s return from an 18-month hiatus from professional MMA.

K-1 2005 World GP finalist and The Pit gym mate of “Iceman” Chuck Liddell (21-6) Scott Lighty (4-0) remained undefeated in his MMA bid with a first-round TKO over Jamiah Williamson (3-1) 4:51.

Damian Douglas (3-1) tapped Joe Schilling (1-3) in a guillotine at 46-seconds of round one.

Fernando Betega (3-2) tapped Mono Otero (3-3) in a rear naked choke at 2:27 of round one.

Luke Riddering (2-0) TKO’d John Corstphino (1-2) at 3:44 of round one.

Steve Gable (3-0) won an SD over Josh McDonald (3-4) by scores of 29-28 twice for Gable and 29-28 once for McDonald.

Reis is 2-0 in EliteXC, most recently submitting Justin Robbins (8-4-1) via rear naked choke in round one in May.

Caraway won his seventh straight last week at Strikeforce by submitting Alvin Cacdac (4-4) via rear naked choke in the first round.

Reis versus Caraway will open the one-hour SHOWTIME telecast airing before the CBS card, headlined by the middleweight title rematch between Fighters.com’s sixth-ranked “Ruthless” Robbie Lawler (15-4) and “Hands of Stone” Scott Smith (13-4).