Contreras, Joel
Current rating: 1383
Record: 7-14
| Grand Prix Austin 2020 (modern) | starting rating: 1409 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 44 | Acar, Batu (1500) | Won 2-1 | +191428 |
| 2modern | 14 | Leete, Aaron (1670) | Lost 1-2 | -131415 |
| 3modern | 287 | Mintz, Samuel (1500) | Lost 0-2 | -171398 |
| 4modern | 351 | Malone, Andrew (1541) | Lost 0-2 | -151383 |
| top | average opponent: 1553record: 1-3 | new rating: 1383 | ||
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2 | Hlavac, Phillip (1500) | Lost 1-2 | -171461 |
| 2modern | 451 | Nguyen, Mike (1430) | Lost 1-2 | -191442 |
| 3modern | 605 | Hamzah, Raith (1594) | Lost 0-2 | -151427 |
| 4modern | 571 | Piwetz, Ron (1415) | Lost 0-2 | -181409 |
| top | average opponent: 1485record: 0-4 | new rating: 1409 | ||
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 296 | Lamb, Jesse (1500) | Lost 1-2 | -191540 |
| 2modern | 376 | Ramos, Michael (1431) | Lost 0-2 | -201520 |
| 3modern | 561 | White, Jacob (1357) | Lost 0-0 | -211499 |
| 4modern | 602 | Wernimont, Kyle (1360) | Lost 0-2 | -211478 |
| top | average opponent: 1412record: 0-4 | new rating: 1478 | ||
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 169 | Loomis, Lloyd (1480) | Won 2-0 | +181518 |
| 2standard | 163 | Velazquez De Leon, Rodrigo (1518) | Won 2-1 | +181536 |
| 3standard | 34 | Smith, Warren (1504) | Won 2-0 | +171553 |
| 4standard | 77 | Palmer, David (1602) | Lost 1-2 | -171536 |
| 5standard | 134 | Humphries, Mickey (1584) | Won 2-1 | +191555 |
| 6standard | 35 | Richards, Adam (1517) | Won 2-0 | +171572 |
| 7standard | 29 | Vi, Henry (1443) | Won 2-0 | +161588 |
| 8standard | 26 | Dennis, AJ (1644) | Lost 1-2 | -171571 |
| 9standard | 58 | Hu, Haibing (1907) | Lost 1-2 | -121559 |
| top | average opponent: 1578record: 6-3 | new rating: 1559 | ||