Witterstaetter, Brennan
Current rating: 1446
| Grand Prix San Antonio 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 207 | Toups, Robert (1487) | Lost 0-2 | -181482 |
| 2standard | 215 | Rodgers, Logan (1451) | Lost 0-2 | -181464 |
| 3standard | 304 | Mireles, Roni (1467) | Lost 0-2 | -181446 |
| top | average opponent: 1468record: 0-3 | new rating: 1446 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 315 | Slone, Tyler (1544) | Won 2-1 | +191520 |
| 2standard | 121 | Wittenburg, La Donn (1517) | Lost 0-2 | -181502 |
| 3standard | 410 | Griffith, Cole (1422) | Lost 1-2 | -201482 |
| 4standard | 485 | McIntosh, Michael (1482) | Won 2-0 | +181500 |
| 5standard | 404 | Franklin, Lance (1500) | Draw 1-1 | 01500 |
| top | average opponent: 1493record: 2-2-1 | new rating: 1500 | ||
| Grand Prix Dallas 2007 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 200 | Dail, Stephen (1500) | Won 2-1 | +181518 |
| 2extended | 170 | Sutton, Christopher (1458) | Won 2-1 | +171535 |
| 3extended | 97 | Runyon, John (1518) | Lost 0-0 | -181517 |
| 4extended | 135 | Headley, Dylan R (1500) | Won 2-0 | +171534 |
| 5extended | 146 | Emami, Kevan (1557) | Lost 1-2 | -171517 |
| 6extended | 137 | Kim, Alex (1651) | Lost 0-2 | -161501 |
| top | average opponent: 1531record: 3-3 | new rating: 1501 | ||