Harkness, Maxwell
Current rating: 1539
Record: 4-2-1
| Grand Prix Atlanta 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 239 | Papp, Istvan (1500) | Won 2-0 | +181518 |
| 2modern | 161 | Barrozo, Andre (1559) | Lost 0-2 | -171501 |
| 3modern | 445 | Wible, Jesse (1501) | Won 1-0 | +181519 |
| 4modern | 243 | Temple, Jason (1523) | Won 2-0 | +181537 |
| 5modern | 160 | Pellman, John (1601) | Draw 1-1 | +11538 |
| 6modern | 225 | Weary, Jimmy (1540) | Won 2-0 | +181556 |
| 7modern | 146 | Lewis, Stephen (1631) | Lost 0-2 | -171539 |
| average opponent: 1551record: 4-2-1 | new rating: 1539 | |||