In a welterweight clash of former world champions, Sergey Lipinets (15-1, 11 KOs) scored a dramatic ninth round KO over Lamont Peterson (35-5-1, 17 KOs) on Sunday night at the MGM National Harbor Resort & Casino in Oxon Hill, Maryland.

Peterson won most of the early rounds, but towards the seventh round, Lipinets’ power took over and Peterson was hurt late in the eighth, before hitting the canvas in the ninth. Peterson longtime coach and father figure, Barry Hunter threw the towel in as it happened with only one second left to go in the fight.

After the bout Peterson announced he has retired from professional boxing.

In a super lightweight bout, Anthony Peterson (37-1-1, 24 KOs) and former world champion Argenis Mendez (25-5-2, 12 KOs) battled to a ten round draw. The judges saw it 96-94 Peterson, 96-94 Mendez, 95-95.

The bout was close, Peterson won the early rounds, but tired and lost a large portion of the later half of the fight.

Super welterweight Jamontay Clark (14-1, 7 KOs) outlasted Vernon Brown (10–1-1, 7 KOs) over ten rounds. Brown knocked down Clark in the third round as Clark went into the ropes, but Clark threw more and was given the nod with the score of 96-93, 96-93, 95-94.

Middleweight Aaron Coley (16-2-1, 7 KOs) of Hayward, CA, got the biggest win of his career scoring an eight-round split decision over hometown fighter Brandon Quarles (21-5-1, 10 KOs). Coley controlled the fight from start to finish using a great use of distance and not getting hit cleanly at all.

The judges saw it 77-75 Quarles, 79-73, 78-74 Coley.

Super middleweight Lorenzo Simpson (3-0, 2 KOs) picked up a four-round decision over Jaime Meza.