Duncan, Jason R
Current rating: 1554
Record: 7-4-1
| Grand Prix Toronto 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 74 | Vegh, Michael (1522) | Won 2-0 | +181518 |
| 2modern | 147 | Lim, Ken Wai Keat (1631) | Lost 0-2 | -161502 |
| 3modern | 308 | Nyhof, Dag (1469) | Draw 1-1 | 01502 |
| 4modern | 337 | Barber, Nigel A (1501) | Won 2-0 | +181520 |
| 5modern | 246 | Wilhelmy, Francois (1519) | Won 2-1 | +181538 |
| 6modern | 152 | Fitzpatrick, Mark H (1534) | Won 2-0 | +181556 |
| 7modern | 98 | Wilkinson, Adam (1565) | Won 2-1 | +181574 |
| 8modern | 61 | Everson, Mark (1569) | Won 2-0 | +181592 |
| 9modern | 35 | Arnold, Andrew (1523) | Won 2-1 | +171609 |
| 10modern | 21 | Stenborg, Michael (1608) | Lost 0-2 | -181591 |
| 11modern | 42 | Brott, John (1600) | Lost 0-2 | -181573 |
| 12modern | 55 | Blondon, William (1518) | Lost 1-2 | -191554 |
| average opponent: 1547record: 7-4-1 | new rating: 1554 | |||