Live in:
ROTR 4.5 - Proving Grounds 1
Rumble on the Rock
Dec 27, 2003 
Edith Kanakaole Tennis Stadium, Hilo, Hawaii, United States
Edith Kanakaole Tennis Stadium, Hilo, Hawaii, United States Fight card
Main event
| Match | Fighters | Method | Round | Time | ||||
| 10 | Ross Ebanez win |
 |
vs |  |
Shaun Beckett lose |
Decision (Unanimous) |
2 | 5:00 |
| 9 | Robert Villapondo win |
|
vs | |
Abraham Robison lose |
Decision (Majority) |
2 | 5:00 |
| 8 | Kaynan Kaku win |
|
vs |  |
Harris Sarmiento lose |
Decision (Unanimous) |
2 | 5:00 |
| 7 | Mike Aina win |
 |
vs | |
Mike Bickers lose |
KO (Punch) |
2 | 0:22 |
| 6 | DJ Delfin win |
|
vs | |
Eric Devers lose |
Technical Submission (Rear-Naked Choke) |
1 | 0:49 |
| 5 | Mark Rodriguez win |
|
vs | |
Pete Sefo lose |
Submission (Punches) |
2 | 0:20 |
| 4 | Abraham Cortes-Kaleopaa win |
 |
vs | |
Gavin Mata lose |
KO (Punches) |
1 | 1:27 |
| 3 | Paul Laga win |
|
vs |  |
Eric Beach lose |
TKO (Corner Stoppage) |
1 | 5:00 |
| 2 | Robert Villapondo win |
|
vs | |
Ashton Castro lose |
Decision (Unanimous) |
2 | 5:00 |
| 1 | Abraham Robison win |
|
vs | |
Jerry Saribay lose |
Submission (Rear-Naked Choke) |
1 | 3:00 |
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