Undefeated super welterweight contender Vanes Martirosyan earned a unanimous decision over former world champion Kassim Ouma on Saturday night.

Martirosyan, a former Olympian and current NABF and NABO champion, used his speed and length to neutralize Ouma's aggression. The three judges scored the fight 97-93, 97-93, 97-92.

Trained by Freddie Roach, Martirosyan upped his record to 27-0 with 17 knockouts and moved a step closer to a world title shot with a win over a quality opponent.

"It was a tough fight and he was an awkward opponent," Martirosyan said. "We work on everything to prepare for the fights, Freddie Roach is the best."

Martirosyan last fought less than a month ago, stopping former champion Willie Lee with a third-round TKO. Martirosyan seemed fresh and neither fighter seemed to tire in what was an entertaining slugfest.

"Ouma is a veteran fighter and it was a great lesson for Vanes," Roach said.

In the co-main event, super featherweight prospect Diego Magdaleno upped his record to 13-0 with a unanimous decision over Gerardo Robles. The former national amateur champion had his hands full with Robles but managed to pull out the win with the judges scoring the bout 80-72, 78-74, 78-74.

On the undercard, Ismayl Sillakh remained unbeaten, running his record to 10-0 after knocking out Julius Jackson in the first round, and Jose Benavidez won his pro debut with a first round TKO over Steven Cox.