Rumble On The Rock: Proving Grounds 1December 27, 2003PromotionRumble on the RockLocationHilo, HawaiiNumber of bouts12
Main CardPrediction ModeMain CardHeavyweight Bout2 roundsCSWChael Sonnen8-2-1Heavyweight Bout2 roundsVSUnanimous DecisionHMHomer Moore20-3-2Bout2 roundsRVWRobert Villapondo2-0-0Bout2 roundsVSMajority DecisionARAbraham Robison1-0-0Welterweight Bout3 roundsKPWKaleo Padilla1-0-0Welterweight Bout3 roundsVSUnanimous DecisionMMMark Moreno0-1-0Welterweight Bout2 roundsREWRoss Ebanez4-1-0Welterweight Bout2 roundsVSUnanimous DecisionSBShaun Beckett4-3-0Lightweight Bout2 roundsKKWKaynan Kaku3-0-0Lightweight Bout2 roundsVSUnanimous DecisionHSHarris Sarmiento6-6-0Lightweight Bout2 roundsMAWMike Aina0-0-0Lightweight Bout2 roundsVSKO/TKO, Punch | R2 · 0:22MBMike Bickers0-0-0Featherweight Bout2 roundsDDWDJ Delfin0-0-0Featherweight Bout2 roundsVSSubmission, Rear Naked Choke | R1 · 0:49EDEric Devers0-1-0Heavyweight Bout2 roundsMRWMark Rodrigues0-0-0Heavyweight Bout2 roundsVSKO/TKO | R2 · 0:20PSPeter Sefo0-0-0Featherweight Bout2 roundsACWA. Cortes-Kaleopaa0-0-0Featherweight Bout2 roundsVSKO/TKO, Punch | R1 · 1:27GMGavin Mata0-0-0Welterweight Bout2 roundsPLWPaul Laga1-2-0Welterweight Bout2 roundsVSKO/TKO, Corner Stoppage | R1 · 5:00EBEric Beach0-1-0Bout2 roundsRVWRobert Villapondo1-0-0Bout2 roundsVSUnanimous DecisionACAshton Castro0-0-0Bout2 roundsARWAbraham Robison0-0-0Bout2 roundsVSSubmission, Rear Naked Choke | R1 · 3:00JSJerry Saribay0-0-0