Penkert, Thomas
Current rating: 1457
Record: 4-7
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 32 | Malecki, Christopher (1485) | Lost 0-2 | -171454 |
| 2standard | 409 | McDowell, Michael (1482) | Won 2-1 | +181472 |
| 3standard | 597 | Battey, Hoyt (1504) | Won 2-0 | +191491 |
| 4standard | 227 | Ford, Jay (1524) | Lost 1-2 | -181473 |
| 5standard | 557 | Della Grotte, Kevin (1423) | Won 2-1 | +171490 |
| 6standard | 410 | Kanner, Zachary (1618) | Lost 0-2 | -151475 |
| 7standard | 431 | Reilly, Reed (1510) | Lost 1-2 | -181457 |
| average opponent: 1506record: 3-4 | new rating: 1457 | |||
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 99 | Kvartek, Chris (1910) | Lost 1-2 | -111489 |
| 2sealed | 391 | Mahadeo, Dinesh (1520) | Lost 1-2 | -171472 |
| 3sealed | 718 | Fennen, Alexander (1423) | Won 2-1 | +171489 |
| 4sealed | 627 | Hough, Ryan (1522) | Lost 1-2 | -181471 |
| average opponent: 1594record: 1-3 | new rating: 1471 | |||