Clark, Martin
Current rating: 1530
Record: 7-6
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 387 | Bennett, Brian (1496) | Won 2-0 | +191499 |
| 2legacy | 81 | Nash, Joe (1522) | Lost 0-2 | -181481 |
| 3legacy | 429 | Crabtree, Jane (1501) | Won 2-0 | +181499 |
| 4legacy | 267 | Garbarine, Brian (1530) | Won 2-0 | +191518 |
| 5legacy | 324 | Amaral, Juan (1507) | Won 2-0 | +181536 |
| 6legacy | 166 | Nelson, Brad (2164) | Lost 0-2 | -81528 |
| 7legacy | 286 | Hightower, Joshua (1538) | Won 2-1 | +181546 |
| 8legacy | 131 | Anderson, Kyle (1631) | Lost 1-2 | -161530 |
| average opponent: 1611record: 5-3 | new rating: 1530 | |||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 103 | Wiediger, Ronald (1500) | Lost 1-2 | -181482 |
| 2legacy | 535 | Czyzewski, Shane (1425) | Lost 0-2 | -191463 |
| 3legacy | 825 | Burrhus, Christopher (1466) | Won 2-1 | +181481 |
| 4legacy | 724 | Hine, James (1451) | Won 2-1 | +171498 |
| 5legacy | 639 | Holt, Andrew (1494) | Lost 0-2 | -181480 |
| average opponent: 1467record: 2-3 | new rating: 1480 | |||