Ketterer, David
Current rating: 1449
Record: 3-6
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 151 | Jain-Washburn, Sumanth (1500) | Won 2-1 | +191483 |
| 2legacy | 205 | Schatteman, Boston (1472) | Won 2-1 | +171500 |
| 3legacy | 69 | Abrams, Cory (1428) | Won 2-1 | +171517 |
| 4legacy | 55 | Barragan, Alfredo (1563) | Lost 1-2 | -171500 |
| 5legacy | 200 | Soltys, Jt (1542) | Lost 1-2 | -171483 |
| 6legacy | 238 | White, Eli (1454) | Lost 1-2 | -191464 |
| 7legacy | 227 | Krot, Hunter (1609) | Lost 0-2 | -151449 |
| average opponent: 1510record: 3-4 | new rating: 1449 | |||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 722 | Luiza, John (1500) | Lost 0-2 | -181482 |
| 2modern | 933 | Jobe, Justin (1482) | Lost 0-2 | -181464 |
| average opponent: 1491record: 0-2 | new rating: 1464 | |||