Nicaraguan junior featherweight Daniel Diaz ended a two-fight losing streak with Saturday night’s upset split-decision victory over Robert Marroquin, of Dallas, Texas, on a show that was promoted by Top Rank on Saturday night at The WinStar Casino in Thackerville, Okla.

Marroquin (23-3, 16 knockouts) was coming off a third-round stoppage of Antonio Escalante in March that helped him to rebound from a unanimous decision loss to current RING, WBA and WBO champion Guillermo Rigondeaux in September. Diaz is 20-5-1, with 14 KOs.

In another bout, welterweight Brad Solomon (20-0, 8 KOs), of Lafayette, La., scored three knockdowns over the course of a fifth-round stoppage of Colombian Henry Auraad (14-8-1, 11 KOs), of Miami, Fla.

In a welterweight bout, 19-year-old Alex Saucedo (9-0, 6 KOs), of Oklahoma City, scored a four-round unanimous decision over hard-punching Boyd Henley (10-3-1, 9 KOs), of Kansas City. Also, junior welterweight Ivan Najera (11-0, 8 KOs), of San Antonio, earned a six-round unanimous decision over Nicaraguan Alexander Lopez (6-5, 1 KO), of Fort Worth.

U.S. Olympian Jose Carlos Ramirez rose to 4-0 with his third knockout, stopping Christopher Williams (1-2) in the first round of their junior welterweight bout at WinStar Casino in Thackerville, Okla. Southpaw featherweight Tremaine Williams (8-0, 2 KOs), of New Haven, Conn., won a clash of unbeatens by six-round unanimous decision over Isaac Zarate (5-1), of San Pedro, Calif.

Photo by Chris Farina, Top Rank

Lem Satterfield can be reached at [email protected]