Williams, Derek
Current rating: 1498
Record: 4-4
| Grand Prix Madison 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 548 | DeLorenzo, Steven (1556) | Won 2-1 | +191519 |
| 2sealed | 154 | Yungmann, Martin (1480) | Lost 1-2 | -191500 |
| 3sealed | 612 | Pulchinski, Ethan (1499) | Won 2-1 | +181518 |
| 4sealed | 221 | Graham, Jon (1486) | Lost 0-2 | -181500 |
| 5sealed | 498 | Mercer, Jeff (1464) | Lost 0-2 | -191481 |
| 6sealed | 467 | Wyatt, CJ (1526) | Won 2-0 | +191500 |
| 7sealed | 362 | Kenjar, Jason (1493) | Won 2-0 | +181518 |
| 8sealed | 1024 | Kelley, Thomas (1431) | Lost 1-2 | -201498 |
| average opponent: 1492record: 4-4 | new rating: 1498 | |||