Boyce, Joshua
Current rating: 1447
Record: 3-6
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 183 | Rohm, Alex (1500) | Lost 0-2 | -181447 |
| 2sealed | 303 | Fowler, Christopher (1482) | Won 2-0 | +191466 |
| 3sealed | 330 | Fulgenzi, Ashley (1506) | Won 2-1 | +191485 |
| 4sealed | 265 | Calandro, Tiffany (1313) | Lost 0-2 | -211464 |
| 5sealed | 306 | Favretto, Carlo (1550) | Lost 0-2 | -171447 |
| average opponent: 1470record: 2-3 | new rating: 1447 | |||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 160 | Beardsley, Jay (1500) | Won 2-0 | +181518 |
| 2modern | 232 | Forshaw, Tyler (1534) | Lost 0-2 | -181500 |
| 3modern | 797 | D'Ambrose, Nicolas (1531) | Lost 1-2 | -171483 |
| 4modern | 876 | Wicker, Benjamin (1483) | Lost 0-2 | -181465 |
| average opponent: 1512record: 1-3 | new rating: 1465 | |||