Korthuis, Jason
Current rating: 1413
Record: 3-8
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 151 | Bratcher, Mark (1500) | Lost 1-2 | -171428 |
| 2standard | 453 | Biddle, John (1482) | Won 2-1 | +191447 |
| 3standard | 375 | Zhen, Jimmy (1500) | Lost 1-2 | -171430 |
| 4standard | 458 | Gagnon, David (1479) | Won 2-1 | +191449 |
| 5standard | 348 | Renfro, Chris (1496) | Lost 0-2 | -171432 |
| 6standard | 468 | Waechter, Kurt (1353) | Lost 0-2 | -191413 |
| average opponent: 1468record: 2-4 | new rating: 1413 | |||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 212 | Greenstein, Jordan (1478) | Lost 0-2 | -181482 |
| 2block | 353 | Kahn, Jared (1482) | Won 2-0 | +181500 |
| 3block | 217 | Bilz, Duncan (1499) | Lost 1-2 | -181482 |
| 4block | 370 | Albino, Christopher (1465) | Lost 0-2 | -191463 |
| 5block | 393 | Basile, Anthony (1464) | Lost 1-2 | -181445 |
| average opponent: 1478record: 1-4 | new rating: 1445 | |||