Dempsey, William
Current rating: 1497
Record: 7-7-1
| Grand Prix Atlanta 2019 (legacy) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 74 | McMicheaux, Zach (1629) | Won 2-0 | +191573 |
| 3legacy | 71 | Altman, Amy (1653) | Lost 0-2 | -161557 |
| 4legacy | 247 | Clarke, Cole (1515) | Lost 0-2 | -191538 |
| 5legacy | 329 | Reed, James (1559) | Won 2-1 | +181556 |
| 6legacy | 189 | Aldrich, Jason (1523) | Lost 1-2 | -181538 |
| 7legacy | 251 | Wysocki, Eric (1561) | Lost 0-2 | -181520 |
| 8legacy | 242 | Maise, Andrew (1238) | Lost 0-2 | -231497 |
| average opponent: 1525record: 2-5 | new rating: 1497 | |||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 169 | Berrey, Robert (1568) | Draw 1-1 | +11501 |
| 2modern | 340 | Smith, Ryan 7472 (1499) | Won 2-1 | +181519 |
| 3modern | 347 | Kell, Kevin (1501) | Lost 0-2 | -181501 |
| 4modern | 511 | Sgro, Stephen (1506) | Won 2-1 | +181519 |
| 5modern | 362 | Thomson, Ryan (1497) | Lost 1-2 | -181501 |
| 6modern | 473 | Webster, Ryan (1470) | Won 2-1 | +171518 |
| 7modern | 358 | Baxter, Billy (1555) | Won 2-0 | +191537 |
| 8modern | 247 | Wakefield, Andrew (1491) | Won 2-1 | +171554 |
| average opponent: 1511record: 5-2-1 | new rating: 1554 | |||