Gelzhiser, Graham
Current rating: 1435
| Grand Prix Pittsburgh 2018 (DOM standard) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 213 | Dunn, Conor (1500) | Lost 1-2 | -171412 |
| 2standard | 308 | Scoggins, Christo (1482) | Won 2-0 | +201432 |
| 3standard | 346 | Tuske, Paul (1531) | Lost 0-2 | -171415 |
| 4standard | 387 | Lefeld, Sarah (1481) | Won 2-0 | +201435 |
| 5standard | 285 | Cailloux, Jacob (1476) | Won 2-0 | +181453 |
| 6standard | 228 | Decker, Samuel (1458) | Lost 0-2 | -181435 |
| top | average opponent: 1488record: 3-3 | new rating: 1435 | ||
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 265 | Grant, Steven (1418) | Lost 1-2 | -191464 |
| 2standard | 386 | Miller, Brandon (1470) | Won 2-0 | +181482 |
| 3standard | 527 | Bingham, William (1589) | Lost 0-2 | -161466 |
| 4standard | 582 | Jacobsen, Chris (1432) | Lost 0-2 | -191447 |
| 5standard | 616 | DeJohn, Chris (1442) | Lost 1-2 | -181429 |
| top | average opponent: 1470record: 1-4 | new rating: 1429 | ||
| Grand Prix Pittsburgh 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 144 | Falchetti, Matt (1551) | Lost 0-2 | -171483 |
| top | record: 0-1 | new rating: 1483 | ||