Cowley, William
Current rating: 1447
Record: 2-5-1
| Grand Prix Montreal 2019 (ELD limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 332 | Daube-Valois, Noah (1500) | Lost 0-2 | -181465 |
| 2sealed | 330 | Goff, Thomas (1489) | Won 1-0 | +191484 |
| 3sealed | 308 | Gilchrist, Ryan (1525) | Lost 0-2 | -181466 |
| 4sealed | 338 | Courson, Dawson (1409) | Lost 0-2 | -191447 |
| average opponent: 1481record: 1-3 | new rating: 1447 | |||
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 5 | Morrisette, Christopher (1500) | Won 2-0 | +181518 |
| 2sealed | 183 | Howatt, Shane (1562) | Draw 1-1 | +11519 |
| 3sealed | 243 | N. B., Adrian (1517) | Lost 0-2 | -181501 |
| 4sealed | 346 | Eckler, Christian (1501) | Lost 0-2 | -181483 |
| average opponent: 1520record: 1-2-1 | new rating: 1483 | |||