MacDonald, Aaron
Current rating: 1390
Record: 8-16-2
| Grand Prix Toronto 2019 (modern) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 216 | Vandelden, Alex (1554) | Won 2-0 | +211418 |
| 2modern | 248 | Hawron, Richard (1538) | Lost 1-2 | -161402 |
| 3modern | 298 | St. Pierre, Jeff (1394) | Lost 0-2 | -181384 |
| 4modern | 463 | Morrison, Scott (1382) | Lost 1-2 | -181366 |
| 5modern | 517 | Von Dungern, Ryan (1464) | Won 2-0 | +201386 |
| 6modern | 431 | Pietrantonio, Daniel (1483) | Lost 1-2 | -161370 |
| 7modern | 385 | Maddock, Ainsley (1472) | Won 2-0 | +201390 |
| top | average opponent: 1470record: 3-4 | new rating: 1390 | ||
| Grand Prix Vancouver 2018 (UMA limited) | starting rating: 1383 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 257 | Carson, Jennifer (1630) | Lost 0-2 | -131370 |
| 2sealed | 296 | Milbank, Isaiah (1484) | Draw 1-1 | +21372 |
| 3sealed | 368 | Kimpton, Ian (1480) | Won 2-0 | +201392 |
| 4sealed | 271 | Pierce, David (1454) | Lost 0-2 | -171375 |
| 5sealed | 318 | Somerville, Jamie (1498) | Won 2-0 | +201395 |
| 6sealed | 249 | Peterson, Mikal (1507) | Draw 1-1 | +21397 |
| top | average opponent: 1509record: 2-2-2 | new rating: 1397 | ||
| Grand Prix Houston 2018 (RIX limited) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 219 | Rhodes, Chris (1513) | Lost 0-2 | -161414 |
| 2sealed | 286 | Hood, James (1482) | Lost 0-2 | -171397 |
| 3sealed | 423 | Whitehurst, Clinton (1638) | Lost 1-2 | -141383 |
| top | average opponent: 1544record: 0-3 | new rating: 1383 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 69 | Daniels, Kraig (1500) | Won 2-0 | +191483 |
| 2sealed | 46 | Martel, Ashton (1518) | Lost 0-2 | -181465 |
| 3sealed | 603 | Beamish, Nicholas (1498) | Lost 0-0 | -171448 |
| 4sealed | 762 | Wigglestove, Chancy (1483) | Lost 0-2 | -181430 |
| top | average opponent: 1500record: 1-3 | new rating: 1430 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 159 | Zhao, Jian (1448) | Lost 1-2 | -191481 |
| 2sealed | 226 | Bryans, Francis (1482) | Won 2-0 | +181499 |
| 3sealed | 176 | Ragsdale, Adam (1521) | Lost 0-2 | -181481 |
| 4sealed | 285 | Kelahan, Seamus (1503) | Lost 0-2 | -171464 |
| 5sealed | 244 | Liu, Daiqiang (1464) | Won 2-0 | +181482 |
| 6sealed | 194 | Aubut, Elvis (1483) | Lost 1-2 | -181464 |
| top | average opponent: 1483record: 2-4 | new rating: 1464 | ||