Featherweight Claudio Marrero (22-1, 16 KOs) scored a first round knockout over Carlos Zambrano (26-1, 11 KOs) to become the WBA interim featherweight champion on Saturday night at Sam’s Town Live in Las Vegas. Marrero hit Zambrano with a check left hook that put Zambrano out that happened in the middle of the first round

Middleweight Nathaniel Gallimore (18-1-1, 15 KOs) scored a sixth round TKO over Jeison Rosario (12-1, 9 KOs). Super lightweight prospect Ladarius Miller (13-1, 4 KOs) scored an eighth round TKO over Jesus Gutierrez (14-2-1, 4 KOs).

Former women’s world champion Layla McCarter (39-13-5, 10 KOs) scored a seventh round TKO over Szilvia Szabados (15-10, 6 KOs).

Daniel Gonzalez (3-0) picked up a four round decision over Sacramento, CA’s Mario Ayala to start the card as well. The judges scored the bout 39-37, 40-36 and 40-36.