Johnston, Nathan
Current rating: 1489
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 116 | Mandell, Edmund (1500) | Lost 1-2 | -181470 |
| 2modern | 398 | Hedberg, Sierra (1482) | Won 2-0 | +191489 |
| 3modern | 238 | Weinberg, Jason (1482) | Won 2-1 | +171506 |
| 4modern | 187 | Larrabee, Elijah (1520) | Lost 1-2 | -171489 |
| 5modern | 288 | Tapia, Rene (1502) | Won 2-1 | +181507 |
| 6modern | 237 | Horton, Hart (1532) | Lost 0-2 | -181489 |
| top | average opponent: 1503record: 3-3 | new rating: 1489 | ||
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 316 | Weng, Kevin (1500) | Lost 1-2 | -181448 |
| 2legacy | 628 | Hicks, Kai (1482) | Won 2-1 | +191467 |
| 3legacy | 604 | Wellman, Andrew (1499) | Won 2-1 | +191486 |
| 4legacy | 440 | Bakkala, Tony (1484) | Lost 0-2 | -191467 |
| 5legacy | 451 | Maloney, Donovan (1492) | Won 2-1 | +191486 |
| 6legacy | 336 | Paulino, Davi (1546) | Won 2-1 | +191505 |
| 7legacy | 261 | Schlichting, Bill (1567) | Lost 1-2 | -171488 |
| top | average opponent: 1510record: 4-3 | new rating: 1488 | ||
| Grand Prix Phoenix 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 369 | Porter, Josh (1500) | Won 2-0 | +181518 |
| 2modern | 91 | Locke, Nathan (1518) | Lost 0-2 | -181500 |
| 3modern | 357 | Galuska, Sally (1503) | Lost 1-2 | -181482 |
| 4modern | 521 | Peng, Tianjian (1572) | Lost 0-2 | -161466 |
| top | average opponent: 1523record: 1-3 | new rating: 1466 | ||