Potrykus, Jason
Current rating: 1405
Record: 2-8-1
| Grand Prix Richmond 2014 (modern) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 108 | Moore-Jansen, Rorik (1500) | Lost 0-2 | -171416 |
| 2modern | 565 | Bigelow, Clair (1573) | Lost 0-2 | -151401 |
| 3modern | 711 | Wolfe, Maryann (1462) | Lost 0-2 | -171384 |
| 4modern | 697 | Basseri, Yashar (1383) | Won 2-0 | +181402 |
| 5modern | 556 | Burnum, John (1447) | Won 2-0 | +191421 |
| 6modern | 473 | Neiman-Zych, Alexander (1482) | Draw 1-1 | +11422 |
| 7modern | 390 | Ciufo, Benjamin (1482) | Lost 0-2 | -171405 |
| average opponent: 1476record: 2-4-1 | new rating: 1405 | |||
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 7 | Kaminski, Mike (1536) | Lost 1-2 | -171483 |
| 4modern | 399 | TerHaar, Micah (1529) | Lost 1-2 | -171466 |
| 5modern | 416 | Leon Valencia, Francisco (1657) | Lost 0-2 | -151451 |
| 6modern | 463 | Esralian, John (1433) | Lost 0-2 | -181433 |
| average opponent: 1539record: 0-4 | new rating: 1433 | |||