Perris, Joshua
Current rating: 1504
Record: 11-11-2
| Grand Prix Los Angeles 2018 (M19 standard) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 144 | Mueting, Ivan (1500) | Lost 0-2 | -191504 |
| top | record: 0-1 | new rating: 1504 | ||
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 241 | Nedelchev, Zhivko (1500) | Won 2-1 | +181499 |
| 2modern | 343 | Lohner, Zachary (1466) | Won 2-1 | +171516 |
| 3modern | 176 | Schmidt, Tyler (1584) | Lost 1-2 | -161500 |
| 4modern | 690 | Jones, Nathaniel (1465) | Won 1-0 | +171517 |
| 5modern | 195 | Rittenhouse, Joseph (1583) | Won 2-1 | +191536 |
| 6modern | 182 | Knox, Nathaniel (1772) | Lost 0-2 | -131523 |
| 7modern | 336 | Moore, Scott (1526) | Won 2-0 | +181541 |
| 8modern | 181 | Priest, Cameron (1551) | Lost 0-2 | -181523 |
| top | average opponent: 1556record: 5-3 | new rating: 1523 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1 | Kauffman, Stacey (1366) | Draw 1-1 | -21460 |
| 2modern | 645 | Toms, Graeme (1365) | Lost 0-2 | -201440 |
| 3modern | 1297 | Bell, Jeremy (1498) | Lost 0-1 | -171423 |
| 4modern | 1391 | Kenney, Jon-Luke (1442) | Won 2-0 | +191442 |
| 5modern | 1203 | Portillo, Avellino (1481) | Won 2-1 | +181460 |
| 6modern | 2163 | Herlehy, Justin (1500) | Won 2-0 | +191479 |
| 7modern | 697 | Eichelkraut, Andy (1546) | Won 2-0 | +191498 |
| 8modern | 482 | Ida, Justin (1481) | Draw 1-1 | 01498 |
| 9modern | 626 | Vale, Rafael (1538) | Lost 0-2 | -171481 |
| top | average opponent: 1469record: 4-3-2 | new rating: 1481 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 311 | Ruiz, Juan (1415) | Won 2-0 | +161516 |
| 2standard | 108 | Jerome, Alec (1517) | Lost 0-2 | -181498 |
| 3standard | 470 | Griffin, Christian (1642) | Won 2-0 | +211519 |
| 4standard | 389 | Thompson, Jesse (1452) | Lost 0-2 | -191500 |
| 5standard | 438 | Starbuck, Dean (1502) | Lost 1-2 | -181482 |
| 6standard | 499 | Romero, Michael (1363) | Lost 1-2 | -201462 |
| top | average opponent: 1482record: 2-4 | new rating: 1462 | ||