MacDonald, Apostolos
Current rating: 1417
| Grand Prix Vancouver 2017 (modern) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2281 | Dupraw, Josh (1448) | Lost 0-2 | -181432 |
| 2modern | 2555 | Wedge, Nicholas (1481) | Won 2-1 | +191451 |
| 3modern | 2353 | Sharp, Jeff (1468) | Lost 1-2 | -181433 |
| 4modern | 2571 | Schroeder, Jeremy (1512) | Lost 0-2 | -161417 |
| top | average opponent: 1477record: 1-3 | new rating: 1417 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 551 | Olson, Zachary (1500) | Won 2-1 | +191485 |
| 2sealed | 111 | Slind, Nick (1575) | Lost 1-2 | -161469 |
| 3sealed | 525 | Vasara, Ivar (1447) | Lost 0-0 | -191450 |
| top | average opponent: 1507record: 1-2 | new rating: 1450 | ||
| Grand Prix Vancouver 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 197 | Donaldson, James (1501) | Won 2-1 | +181518 |
| 4modern | 53 | Dutton, Tim (1427) | Won 2-1 | +161534 |
| 5modern | 21 | Lam, Tony (Nghia) (1574) | Lost 1-2 | -171517 |
| 6modern | 90 | Salvador, Allion (1593) | Lost 1-2 | -171500 |
| 7modern | 125 | McLaren, Dean (1553) | Lost 0-2 | -171483 |
| 8modern | 203 | Ratanadawong, Jordan (1539) | Lost 0-2 | -171466 |
| top | average opponent: 1531record: 2-4 | new rating: 1466 | ||