Cook, Mathew
Current rating: 1451
Record: 2-5
| Grand Prix Atlanta 2018 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 280 | Hullum, Shay (1532) | Won 2-0 | +191503 |
| 2modern | 281 | Becker, Shawn (1590) | Lost 0-2 | -171486 |
| 3modern | 611 | McClintock, Alexander (1523) | Lost 0-2 | -171469 |
| 4modern | 593 | Pearl, Joshua (1484) | Lost 1-2 | -181451 |
| average opponent: 1532record: 1-3 | new rating: 1451 | |||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 40 | Houk, Lee (1500) | Won 2-0 | +181518 |
| 2standard | 298 | Meyer, Ivan (1618) | Lost 0-2 | -161502 |
| 3standard | 471 | Adepoju, Titus (1511) | Lost 0-2 | -181484 |
| average opponent: 1543record: 1-2 | new rating: 1484 | |||