Johnston, Del
Current rating: 1485
Record: 2-3
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 632 | Salmons, George (1501) | Won 2-0 | +181518 |
| 2legacy | 325 | Hightower, Joshua (1517) | Won 2-0 | +181536 |
| 3legacy | 340 | Hernandez, Sidney (1581) | Lost 0-2 | -171519 |
| 4legacy | 255 | Ratchford, Cody (1631) | Lost 0-2 | -161503 |
| 5legacy | 576 | Ebbay, Ross Benedict (1497) | Lost 1-2 | -181485 |
| average opponent: 1545record: 2-3 | new rating: 1485 | |||