MacDonald, Thomas
Current rating: 1486
Record: 9-11-4
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1578 | Liao, Steven (1421) | Lost 1-2 | -191449 |
| 2legacy | 1860 | Beales, David (1482) | Won 2-1 | +191468 |
| 3legacy | 1818 | Gilbert, Ryan (1487) | Won 2-0 | +181486 |
| 4legacy | 1604 | Cali, Rich (1519) | Draw 1-1 | +11487 |
| 5legacy | 1697 | Geraghty, Alexander (1482) | Draw 1-1 | 01487 |
| 6legacy | 1773 | Hurtado, Oscar (1501) | Won 2-0 | +181505 |
| 7legacy | 1670 | Cadieux, Alexandre (1437) | Lost 0-2 | -191486 |
| top | average opponent: 1476record: 3-2-2 | new rating: 1486 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 435 | Anszperger, Noah (1500) | Won 2-0 | +191472 |
| 2modern | 213 | Nassif, George (1565) | Won 2-1 | +191491 |
| 3modern | 104 | Cadieux, Alex (1464) | Won 2-1 | +181509 |
| 4modern | 25 | Rachid, Denniz (1975) | Lost 1-2 | -101499 |
| 5modern | 226 | O'Brien, Matt (1711) | Lost 0-2 | -141485 |
| 6modern | 203 | Haber, David (1570) | Lost 1-2 | -171468 |
| top | average opponent: 1631record: 3-3 | new rating: 1468 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 269 | Adkins, Justin D (1483) | Lost 1-2 | -181466 |
| 2legacy | 383 | Abraham, Mike (1703) | Won 2-1 | +221488 |
| 3legacy | 338 | Hurth, Andrew (1500) | Lost 1-2 | -171471 |
| 4legacy | 445 | Messner, Tristan (1480) | Lost 0-2 | -181453 |
| top | average opponent: 1542record: 1-3 | new rating: 1453 | ||
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 77 | Kader, Nathaniel a (1500) | Lost 0-2 | -181482 |
| 2sealed | 218 | Voduarka, Jesse J (1460) | Draw 1-1 | 01482 |
| 3sealed | 234 | Perry, Joseph (1482) | Won 2-0 | +181500 |
| 4sealed | 206 | Wong, Ben (1575) | Lost 1-2 | -171483 |
| 5sealed | 228 | Bowen, Leonard (1481) | Won 2-0 | +181501 |
| 6sealed | 177 | Schwarzott, Christopher (1571) | Draw 1-1 | +11502 |
| 7sealed | 154 | Capano, Frank (1503) | Lost 1-2 | -181484 |
| top | average opponent: 1510record: 2-3-2 | new rating: 1484 | ||