Chupashko, John
Current rating: 1525
Record: 7-6
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 297 | Young, Kellye (1416) | Won 2-0 | +171500 |
| 2sealed | 218 | Brooks, Cody (1352) | Won 2-1 | +151515 |
| 3sealed | 10 | Ramcharan, Chris (1463) | Won 2-0 | +171532 |
| 4sealed | 158 | Tucker, John (1556) | Won 2-0 | +191551 |
| 5sealed | 22 | Vires, Matthew (1572) | Lost 1-2 | -181533 |
| 6sealed | 224 | Kastel, Chad (1763) | Won 2-0 | +221555 |
| 7sealed | 162 | Andalcio, Ayana (1529) | Lost 1-2 | -181537 |
| 8sealed | 206 | Bogner, Ryan (1919) | Lost 1-2 | -121525 |
| average opponent: 1571record: 5-3 | new rating: 1525 | |||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1589 | Belanger, Derick (1500) | Lost 1-2 | -181482 |
| 2legacy | 1881 | Spollen, Scott (1482) | Lost 0-2 | -181464 |
| 3legacy | 2014 | Karnes, Kevin (1528) | Won 2-0 | +191483 |
| 4legacy | 1980 | Horner, Aaron (1340) | Won 2-1 | +161499 |
| 5legacy | 1756 | Ivey, Jacob (1634) | Lost 0-2 | -161483 |
| average opponent: 1497record: 2-3 | new rating: 1483 | |||