Perkins, Devin
Current rating: 1536
| Grand Prix Kansas City 2019 (WAR standard) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 270 | Ziggas, Andrew (1689) | Lost 1-2 | -161556 |
| 2standard | 346 | Eubanks, Derek (1439) | Lost 0-2 | -201536 |
| top | average opponent: 1564record: 0-2 | new rating: 1536 | ||
| Grand Prix Omaha 2015 (modern) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 35 | Bass, Chris (1530) | Lost 0-2 | -181503 |
| 2modern | 312 | Boeding, Lonnie (1460) | Lost 1-2 | -191484 |
| 3modern | 513 | Wells, Preston (1463) | Won 2-1 | +181502 |
| 4modern | 402 | Crumpler, Ken (1387) | Won 2-0 | +161518 |
| 5modern | 378 | Gilmore, Billy (1438) | Won 2-0 | +161534 |
| 6modern | 278 | Blommel, Christopher (1542) | Won 2-1 | +191553 |
| 7modern | 229 | Gauker, Dylan (1693) | Lost 0-2 | -161537 |
| 8modern | 214 | Van Beek, Andrew (1488) | Won 2-0 | +171554 |
| 9modern | 116 | Martin, Logan (1528) | Won 2-0 | +181572 |
| top | average opponent: 1503record: 6-3 | new rating: 1572 | ||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 559 | Lamp, Alexander (1447) | Won 2-0 | +171517 |
| 2standard | 614 | Spano, Matthew (1623) | Lost 0-2 | -161501 |
| 3standard | 820 | McLear, Ryan (1504) | Won 2-1 | +181519 |
| 4standard | 783 | Rosselli, Luca (1629) | Lost 1-2 | -161503 |
| 5standard | 778 | Thompson, Kale (1568) | Won 2-1 | +191522 |
| 6standard | 727 | Diemer, Eric (1519) | Lost 0-2 | -181504 |
| 7standard | 723 | Hamilton, Steve (1528) | Lost 1-2 | -171487 |
| 8standard | 706 | Campanella, Tyler (1471) | Won 2-1 | +171504 |
| 9standard | 649 | Wicker, Shane (1432) | Won 2-1 | +171521 |
| top | average opponent: 1524record: 5-4 | new rating: 1521 | ||