Roche, John
Current rating: 1446
Record: 5-9
| Grand Prix London 2019 (WAR sealed) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 169 | Noordzij, Wouter (1720) | Won 2-1 | +231485 |
| A2sealed | 132 | Leadbeater, Thomas (1561) | Lost 0-2 | -171468 |
| A3sealed | 111 | Jones, Alexander (1631) | Won 2-1 | +211489 |
| A4sealed | 100 | Fortier, Remi (1864) | Lost 0-2 | -111478 |
| C1sealed | 377 | Paciocco, Andrea (1668) | Won 2-0 | +211499 |
| C2sealed | 153 | Tran, Franck (1468) | Lost 1-2 | -191480 |
| C3sealed | 233 | Garcia, Brennan (1549) | Lost 0-2 | -161464 |
| C4sealed | 263 | Illanas Sanchez-Beato, Luis Miguel (1468) | Lost 0-2 | -181446 |
| average opponent: 1616record: 3-5 | new rating: 1446 | |||
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 343 | Allison II, Timothy (1500) | Lost 1-2 | -181482 |
| 2standard | 628 | Sullivan, John (1402) | Won 2-0 | +171499 |
| 3standard | 487 | Jorn, Tejan (1500) | Won 2-1 | +181517 |
| 4standard | 320 | Witt, Tyler (1572) | Lost 1-2 | -171500 |
| 5standard | 591 | Mankins, Patrick (1503) | Lost 0-2 | -181482 |
| 6standard | 634 | Russell, David M (1395) | Lost 0-2 | -201462 |
| average opponent: 1479record: 2-4 | new rating: 1462 | |||