Portuese, Tom
Current rating: 1506
Record: 4-4
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 124 | Liorti, Andrew (1777) | Won 2-0 | +231523 |
| 2sealed | 102 | Davis-Purcell, Ben (1519) | Lost 0-2 | -181505 |
| 3sealed | 284 | Kraemer, Daniel (1396) | Won 2-0 | +161521 |
| 4sealed | 171 | Freeman-Koehl, Andreas (1518) | Lost 1-2 | -181503 |
| 5sealed | 316 | Amos, Jeff (1459) | Lost 1-2 | -191484 |
| 6sealed | 323 | Lamarche, Raphael (1483) | Won 2-1 | +181502 |
| 7sealed | 246 | Gagne, Andre (1443) | Won 2-1 | +171519 |
| 8sealed | 193 | Chreptyk, Brandon (1810) | Lost 1-2 | -131506 |
| average opponent: 1551record: 4-4 | new rating: 1506 | |||