Balfour, Troy
Current rating: 1420
| Grand Prix Hartford 2018 (modern) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 183 | McPherson, Steven (1545) | Lost 0-2 | -161414 |
| 2modern | 536 | Fredrickson, Jeffery (1497) | Won 2-1 | +201434 |
| 3modern | 489 | Manzi, Matthew (1421) | Won 2-1 | +181452 |
| 4modern | 405 | McCord, Kristopher (1639) | Lost 0-2 | -151437 |
| 5modern | 601 | Walters, Steven (1485) | Lost 0-2 | -171420 |
| top | average opponent: 1517record: 2-3 | new rating: 1420 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 422 | Metz, Nate (1500) | Lost 0-2 | -181464 |
| 2modern | 845 | Ortz, Taylor (1482) | Lost 1-2 | -171447 |
| 3modern | 1195 | Regan, Christian (1524) | Lost 0-2 | -171430 |
| top | average opponent: 1502record: 0-3 | new rating: 1430 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 329 | Adams, Joseph (1480) | Lost 1-2 | -181482 |
| 2legacy | 381 | Perugini, Michael (1503) | Lost 0-2 | -181464 |
| 3legacy | 593 | Kavanaugh, Jim (1468) | Lost 0-2 | -181446 |
| 4legacy | 600 | Mayte, Matthew (1446) | Won 2-0 | +181464 |
| 5legacy | 533 | Lau, Ricky (1462) | Won 2-0 | +181482 |
| 6legacy | 450 | Jung, Theodore (1456) | Won 2-0 | +181500 |
| 7legacy | 343 | Gareau, Philippe (1528) | Lost 0-2 | -181482 |
| top | average opponent: 1478record: 3-4 | new rating: 1482 | ||