Bush, Jack
Current rating: 1353
| Grand Prix Prague 2018 (modern) | starting rating: 1375 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 600 | Slaydon, Christopher (1500) | Won 2-0 | +211396 |
| 2modern | 78 | Taddei, Andrea (1500) | Lost 0-2 | -161380 |
| 3modern | 673 | Surneyek, Tomas (1500) | Lost 0-2 | -161364 |
| 4modern | 668 | Leach, Craig (1608) | Won 2-1 | +221386 |
| 5modern | 531 | Robling, Randy (1403) | Lost 1-2 | -181368 |
| 6modern | 661 | Chapillon, Teddy (1480) | Lost 0-2 | -151353 |
| top | average opponent: 1498record: 2-4 | new rating: 1353 | ||
| Grand Prix Lyon 2018 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 270 | Gaidioz, Jean (1500) | Lost 0-2 | -181446 |
| 2modern | 767 | Guillaume, Bastien (1480) | Lost 1-2 | -171429 |
| 3modern | 980 | Daverdon, Alexandre (1352) | Lost 0-2 | -201409 |
| 4modern | 987 | Kaufmann, Martin (1371) | Lost 0-2 | -181391 |
| 5modern | 951 | Paquier, Arnaud (1428) | Lost 1-2 | -181373 |
| 7modern | 785 | Bernier, Clement (1432) | Lost 1-2 | -161357 |
| 8modern | 721 | Fux, Bastien (1411) | Won 2-1 | +181375 |
| top | average opponent: 1425record: 1-6 | new rating: 1375 | ||
| Grand Prix London 2016 (KLD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 765 | Salzburg, Martin (1534) | Lost 0-2 | -171483 |
| 2sealed | 767 | Stockwell, Paul (1398) | Won 2-0 | +161499 |
| 3sealed | 792 | Beal, Steven (1500) | Lost 0-2 | -181481 |
| 4sealed | 817 | Tur, Daniel (1483) | Lost 0-2 | -181463 |
| 5sealed | 1071 | Falcon, Javier (1470) | Won 2-1 | +181481 |
| 6sealed | 793 | Au, Nathan Xun-Ling (1500) | Lost 0-2 | -171464 |
| top | average opponent: 1481record: 2-4 | new rating: 1464 | ||