Bussa, Donald
Current rating: 1442
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 28 | Smith, Ulysses (1500) | Won 2-1 | +191434 |
| 2sealed | 42 | Cardenas, Dominique (1539) | Won 2-0 | +201454 |
| 3sealed | 90 | Kim, Kevin (1558) | Lost 1-2 | -161438 |
| 4sealed | 142 | Oudinot, Shioan (1583) | Won 2-0 | +211459 |
| 5sealed | 177 | Turner, Cash (1500) | Lost 0-2 | -171442 |
| top | average opponent: 1536record: 3-2 | new rating: 1442 | ||
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 13 | Rheaume, Patrice (1500) | Won 2-1 | +191464 |
| 2sealed | 2 | Pan, Jeffrey (1465) | Lost 0-2 | -181446 |
| 3sealed | 395 | Kraft, Vincent (1555) | Lost 1-2 | -161430 |
| 4sealed | 580 | Tom, Winston (1482) | Won 2-1 | +191449 |
| 5sealed | 526 | Kelly, Patrick R (1529) | Lost 0-2 | -161433 |
| 6sealed | 460 | Couillard Tremblay, Francis (1437) | Lost 0-2 | -181415 |
| top | average opponent: 1495record: 2-4 | new rating: 1415 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 71 | Hurst, Simon (1500) | Lost 1-2 | -181482 |
| 2modern | 415 | Hoose, Maxwell (1482) | Lost 0-0 | -181464 |
| 3modern | 585 | Krafft, Adam (1435) | Lost 0-2 | -191445 |
| top | average opponent: 1472record: 0-3 | new rating: 1445 | ||