Chua, John
Current rating: 1426
| Grand Prix Phoenix 2020 (pioneer) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 36 | Werbelow, Chase (1444) | Lost 0-2 | -181440 |
| 2pioneer | 233 | Chisum, Matthew (1480) | Won 2-1 | +191459 |
| 3pioneer | 342 | Heller, Blake (1603) | Lost 1-2 | -161443 |
| 4pioneer | 346 | Holl, Kyle (1484) | Lost 1-2 | -171426 |
| top | average opponent: 1503record: 1-3 | new rating: 1426 | ||
| Grand Prix Los Angeles 2019 (modern) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 468 | Flores, Carlo (1562) | Won 2-0 | +181535 |
| 2modern | 252 | Shellman, Tim (1461) | Lost 1-2 | -191516 |
| 3modern | 451 | Hemphill, Jeff (1490) | Lost 1-2 | -181498 |
| 4modern | 561 | Law, Cameron (1468) | Lost 0-2 | -191479 |
| 5modern | 653 | Vondenkamp, Dann (1335) | Lost 0-2 | -211458 |
| top | average opponent: 1463record: 1-4 | new rating: 1458 | ||
| Grand Prix Los Angeles 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 146 | Gray, Johnny (1392) | Won 2-1 | +161516 |
| 2standard | 131 | Goldstein, Abram (1556) | Lost 0-2 | -171499 |
| 3standard | 400 | Nevarez, Ynez (1499) | Won 2-1 | +181517 |
| 4standard | 335 | Gordon, Ray (1757) | Won 2-1 | +221539 |
| 5standard | 190 | Wilson, Jacob (1942) | Lost 0-2 | -111528 |
| 6standard | 170 | Bazua, Cesar (1618) | Won 2-1 | +201548 |
| 7standard | 122 | Porchas, Justin (1710) | Lost 1-2 | -151533 |
| 8standard | 187 | Klainman, Ophir (1638) | Lost 1-2 | -161517 |
| top | average opponent: 1639record: 4-4 | new rating: 1517 | ||