Warren, John
Current rating: 1487
Record: 6-7
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 114 | Salvador, Jorge (1341) | Lost 1-2 | -201426 |
| 2sealed | 335 | Wnuk, James (1501) | Lost 1-2 | -171409 |
| 3sealed | 407 | Fielding, Ashley (1462) | Won 2-1 | +191428 |
| 4sealed | 307 | Priester, Kenneth (1431) | Won 2-0 | +181446 |
| 5sealed | 247 | Dreher, Gregory (1535) | Won 2-1 | +201466 |
| 6sealed | 208 | Marsh, Jordan (1519) | Won 2-1 | +191485 |
| 7sealed | 142 | Cronshaw, Drew (1558) | Won 2-1 | +191504 |
| 8sealed | 84 | Fedelleck, Christopher (1556) | Lost 0-2 | -171487 |
| average opponent: 1488record: 5-3 | new rating: 1487 | |||
| Grand Prix Charlotte 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 77 | Lacroix, Mike (1500) | Lost 0-2 | -181482 |
| 2extended | 175 | England, Kyle (1481) | Lost 1-2 | -181464 |
| 3extended | 173 | DiTizio, Nicholas (1464) | Lost 1-2 | -181446 |
| 4extended | 206 | Davis, John-Marrin (1446) | Won 2-0 | +181464 |
| 5extended | 181 | Gulledge, Nicholas (1466) | Lost 0-2 | -181446 |
| average opponent: 1471record: 1-4 | new rating: 1446 | |||