Robeck, Peter
Current rating: 1504
Record: 7-7
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 203 | McGowen, Alexander (1458) | Lost 0-2 | -191502 |
| 2modern | 651 | Martinez, Marcus (1482) | Won 2-0 | +181520 |
| 3modern | 650 | Redfern, Paul (1641) | Won 2-1 | +201540 |
| 4modern | 326 | Calderon, David (1505) | Lost 0-2 | -191521 |
| 5modern | 528 | Wilson, Lee (1578) | Lost 1-2 | -171504 |
| average opponent: 1533record: 2-3 | new rating: 1504 | |||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1105 | Miller, Daniel (1500) | Won 2-1 | +181518 |
| 2sealed | 971 | Cassity, Shane (1518) | Won 2-0 | +181536 |
| 3sealed | 1002 | Corso, Louis (1883) | Lost 0-2 | -121524 |
| 4sealed | 1162 | Silver, Daniel (1519) | Lost 0-2 | -181506 |
| 5sealed | 1025 | Talcott, Adam (1499) | Won 2-0 | +181524 |
| 6sealed | 806 | Coyle, Ryan (1489) | Lost 1-2 | -191505 |
| 7sealed | 721 | Ruiz, Giovanni (1499) | Won 2-0 | +181523 |
| 8sealed | 569 | Fields, Frank (1501) | Lost 1-2 | -181505 |
| 9sealed | 450 | Maes, Robert (1432) | Won 2-0 | +161521 |
| average opponent: 1538record: 5-4 | new rating: 1521 | |||