Lafontaine Dumais, Jean-Sebastien
Current rating: 1427
Record: 2-6
| Grand Prix Toronto 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 20 | Smith, Mitch (1439) | Lost 0-2 | -191481 |
| 2modern | 631 | Lyons, Paul (1550) | Lost 0-2 | -171464 |
| 3modern | 768 | Oquinn, Patrick (1391) | Lost 1-2 | -191445 |
| 4modern | 762 | Probert, Gareth (1446) | Lost 0-2 | -181427 |
| 5modern | 736 | Phillips, Brett (1445) | Won 2-0 | +181445 |
| 6modern | 626 | Traviss, Matt (1412) | Lost 0-2 | -181427 |
| 7modern | 549 | Ford, Jack (1428) | Won 2-0 | +181445 |
| 8modern | 463 | Giguere, David-Alexandre (1448) | Lost 1-2 | -181427 |
| average opponent: 1445record: 2-6 | new rating: 1427 | |||