Robson Conceicao responded to his first professional defeat by beating an undefeated contender Saturday night.

In his first fight since unbeaten WBC super featherweight champ Oscar Valdez defeated him, the 2016 Olympic gold medalist out-pointed Xavier Martinez in a high-stakes 130-pound encounter ESPN televised from Hard Rock Hotel & Casino. The 33-year-old Conceicao contends he didn’t get proper credit on the scorecards versus Valdez, but judges Henry Ellick (99-91), Henry Gueary (100-90) and David Sutherland (98-92) all scored Brazil’s Conceicao (17-1, 8 KOs) a wide winner over Sacramento’s Martinez.

The 24-year-old Martinez (17-1, 11 KOs), who went off as a slight favorite, buzzed Conceicao with a left hook late in the third round. He otherwise was somewhat competitive, but Conceicao was the busier, more accurate boxer for much of their fight.

“I had to train extra hard because I knew the challenge he would pose for me tonight,” Conceicao said. “More importantly, I was able to be dominant this evening because I put in such hard work because I was motivated. I know I should be the champion. I know I beat Oscar Valdez. He has a fight against Shakur Stevenson, and I think Shakur is going to win. But as a fan and a fighter, I want Oscar to win because he owes me a fight.”

Martinez made his debut with Bob Arum’s Top Rank Inc., which signed him to a multi-fight promotional agreement after his contract with Mayweather Promotions expired late last year.

“I thought it was closer,” Martinez said. “I know I didn’t do enough to win. I sat back too much. I didn’t listen to the game plan fully. It is what it is. I’m not going to be a sore loser. He did his thing tonight. It wasn’t my night. I’m not done. This is just the beginning.”

CompuBox credited Conceicao for landing 18 more punches overall (125-of-549 to 107-of-585). Conceicao connected on more jabs (50-of-317 to 11-of-261), according to CompuBox, but Martinez landed more power punches (96-of-324 to 75-of-232).

Clearly up on the cards, Conceicao continued to keep Martinez at a comfortable distance during the 10th round. He blocked most of Martinez’s punches in that round when Martinez came close enough to throw hard shots at him.

Martinez drilled Conceicao with a flush right on his temple when there was 2:10 on the clock in the ninth round. With just under 50 seconds to go in the ninth round, Martinez backed up Conceicao with a jab.

There was a lot of clinching during the eighth round, when neither fighter managed to land many clean punches.

Conceicao clipped Martinez with a left hook barely a minute into the seventh round. A left hook by Conceicao backed up Martinez with just under 20 seconds on the clock in the seventh round.

Martinez caught Conceicao with a counter right hand with 1:20 to go in the sixth round. Conceicao drilled Martinez with a right hand in an exchange just before the sixth round ended.

Martinez made Conceicao reset his feet after landing another left hook with just over 30 seconds to go in the fifth round. A left-right combination by Martinez also landed just before the fifth round concluded.

Conceicao caught Martinez with a left hook less than 10 seconds into the fourth round. By then, Conceicao seemed to have recovered from the left hook that hurt him late in the third round.

A left uppercut by Conceicao caught Martinez with just over two minutes remaining in the fourth round. Conceicao’s chopping left hand landed exactly at the midway mark of the fourth round.

Martinez’s left hook wobbled Conceicao toward the end of the third round. With about 40 seconds to go in the third round, Martinez caught Conceicao with a left hook.

Approximately 20 seconds later, Martinez landed a hard overhand right.

Conceicao defended himself well during the second round. Martinez consistently went after his body during that round, but didn’t have much success landing to his opponent’s head.

Martinez landed a left and then a right to Conceicao’s body that made him reset his feet barely 30 seconds into their fight. Martinez countered Conceicao’s left hook with a right hand with just under 1:50 to go in the opening round.

Nine rounds later, Conceicao had at least moved himself back into position to fight the winner of an April 30 bout between Valdez (30-0, 23 KOs) and WBO junior lightweight champ Shakur Stevenson (17-0, 9 KOs).

Valdez overcame controversy to beat Conceicao less than a month after he tested positive for Phentermine, a stimulant banned by the Voluntary Anti-Doping Association. Mexico’s Valdez and Conceicao moved forward with their September 10 bout at Casino del Sol in Tucson, Arizona, because the Pascua Yaqui Tribe Athletic Commission is part of the Association of Boxing Commissions, which follows the World Anti-Doping Agency’s testing standards, not those established by VADA.

Keith Idec is a senior writer/columnist for He can be reached on Twitter @Idecboxing.