Perkins, James
Current rating: 1407
Record: 9-15
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1404 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 76 | Layno, Amado (1455) | Lost 0-2 | -171387 |
| 2modern | 473 | Harper, William (1439) | Lost 1-2 | -171370 |
| 3modern | 603 | Niederauer, Scott (1331) | Won 2-1 | +171387 |
| 4modern | 518 | Freeman, David (1382) | Lost 1-2 | -181369 |
| 5modern | 517 | Simmonds, Derrick (1496) | Won 2-0 | +201389 |
| 6modern | 419 | Shaver, Robert (1404) | Won 2-0 | +181407 |
| top | average opponent: 1418record: 3-3 | new rating: 1407 | ||
| Grand Prix Dallas-Fort Worth 2018 (DOM limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 224 | Jannaut, Juan (1482) | Lost 0-2 | -181448 |
| 2sealed | 239 | Reeves, Richard (1483) | Lost 1-2 | -171431 |
| 3sealed | 448 | Melvin, Paul (1694) | Won 2-1 | +221453 |
| 4sealed | 384 | Isaacs, Jason (1638) | Lost 0-2 | -141439 |
| 5sealed | 435 | Castaneda, Gabriel (1472) | Lost 0-2 | -181421 |
| 6sealed | 376 | McDow, Chris (1444) | Lost 1-2 | -171404 |
| top | average opponent: 1536record: 1-5 | new rating: 1404 | ||
| Grand Prix Dallas-Fort Worth 2016 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 105 | Spell, Christopher Ray (1500) | Lost 1-2 | -181463 |
| 2modern | 619 | Sharich, James (1481) | Won 2-1 | +191482 |
| 3modern | 512 | Parks, Kale (1501) | Won 2-1 | +181500 |
| 4modern | 336 | LLOYD, JUSTIN (1517) | Lost 1-2 | -181482 |
| 5modern | 568 | Klima, Patrick (1476) | Lost 0-2 | -181464 |
| 6modern | 793 | Zhang, Boyang (1479) | Lost 1-2 | -181446 |
| 7modern | 723 | Reynolds, Steven (1461) | Won 2-0 | +191465 |
| 8modern | 602 | Hood, Ronnie (1480) | Won 2-0 | +181483 |
| 9modern | 472 | Penrod, Jacob (1531) | Lost 1-2 | -171466 |
| top | average opponent: 1492record: 4-5 | new rating: 1466 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 241 | Cozzoli, Kevin (1500) | Lost 0-2 | -181482 |
| 2sealed | 376 | Whitecotton, Justin (1420) | Won 2-1 | +171499 |
| 3sealed | 348 | Manis, Scott (1501) | Lost 1-2 | -181481 |
| top | average opponent: 1474record: 1-2 | new rating: 1481 | ||