Coburn, Josh
Current rating: 1448
Record: 1-4
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Lagang, Manuel (1534) | Lost 0-2 | -171483 |
| 2sealed | 337 | Sauve, Jacques-Olivier (1387) | Won 2-1 | +161499 |
| 3sealed | 315 | Yam, Jonathan (1500) | Lost 1-2 | -181481 |
| 4sealed | 375 | Caverly, David (1481) | Lost 0-2 | -181463 |
| 5sealed | 403 | Samuels, Eddie (1631) | Lost 1-2 | -151448 |
| average opponent: 1507record: 1-4 | new rating: 1448 | |||