On Tuesday evening from the MGM Grand Conference Center—Grand Ballroom,  Giovani Santillan (26-0, 15 KOs) extended his unbeaten record, but former world champion Antonio DeMarco (33-9-1, 24 KOs) sure didn't make it easy.

Santillan, from San Diego, edged DeMarco via 10-round majority decision in the welterweight co-feature (95-95, 96-94 2x). The three judges agreed on only three of the rounds in a fight that some experts had DeMarco pulling out.

“I knew it was a close fight, but I felt like I did enough solid work in there to pull out the win," Santillan said. “He never hurt me at any point in the fight, but he used his experience in there. He’s a former world champion who has been in there with the best of the best. I want to get back in the ring as soon as possible and use this experience to my advantage.”

Also on the card, Bobirzhan Mominov (11-0, 8 KOs) outworked noted spoiler Cameron Krael (17-16-3, 4 KOs) to earn a unanimous decision in a six-round junior middleweight bout. Mominov was deducted a point for hitting behind the head in the sixth round. The scores were 57-56 and 58-55 2x.

In a six-round heavyweight rumble, Hector Perez (7-2, 3 KOs) prevailed via unanimous decision over Juan Torres (5-3-1, 2 KOs). The scores were 60-54 and 59-55 2x.

Middleweight prospect Nikoloz "The Experiment" Sekhniashvili (6-0, 4 KOs) cruised to a six-round unanimous decision over Detroit native Isiah Jones (8-2, 3 KOs) by scores of 60-54 2x and 59-55.