Peristy, Derek
Current rating: 1434
| Grand Prix Portland 2018 (modern) | starting rating: 1385 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 369 | Scheid, Eric (1545) | Lost 0-2 | -151370 |
| 2modern | 566 | Taut, Emanuel (1481) | Lost 0-2 | -161354 |
| 3modern | 828 | Andreason, Ryan (1467) | Won 2-0 | +201374 |
| 4modern | 734 | Conwell, Rory (1410) | Lost 1-2 | -171357 |
| 5modern | 707 | Eastburn, Stephen (1430) | Won 2-1 | +191376 |
| 6modern | 618 | Lassise, Dylan (1428) | Won 2-0 | +191395 |
| 7modern | 431 | Gilbert, Aaron (1505) | Won 2-0 | +201415 |
| 8modern | 316 | Barbero, Joseph (1467) | Won 2-1 | +191434 |
| top | average opponent: 1466record: 5-3 | new rating: 1434 | ||
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 480 | Barkey, Justin (1500) | Lost 0-2 | -171430 |
| 2legacy | 456 | Nalder, Lane (1482) | Lost 0-2 | -171413 |
| 3legacy | 759 | Pimentel, Felipe (1525) | Lost 0-2 | -161397 |
| 4legacy | 743 | Gage, Joann (1449) | Draw 1-1 | +11398 |
| 5legacy | 685 | Blankenship, David (1650) | Won 2-0 | +231421 |
| 6legacy | 578 | Kittinger, Joel (1405) | Lost 0-2 | -191402 |
| 7legacy | 490 | Ramirez, Juan Oxmar (1448) | Lost 0-2 | -171385 |
| top | average opponent: 1494record: 1-5-1 | new rating: 1385 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 94 | Talbot, Adam (1472) | Lost 0-2 | -191481 |
| 2sealed | 728 | Millhauser, Jonathan (1606) | Lost 0-2 | -151466 |
| 3sealed | 860 | Watters, Ace (1447) | Lost 0-0 | -191447 |
| top | average opponent: 1508record: 0-3 | new rating: 1447 | ||