Mathis, Jason D
Current rating: 1501
Record: 6-6
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 69 | Torra, Eduardo (1500) | Won 2-1 | +181536 |
| 2standard | 243 | Charles, Marc (1522) | Won 2-0 | +171553 |
| 3standard | 85 | Sevaux, Yoann (1689) | Lost 0-2 | -151538 |
| 4standard | 238 | Patton, Jacob (1503) | Lost 0-2 | -191519 |
| 5standard | 311 | Green, Adam (1503) | Lost 1-2 | -181501 |
| average opponent: 1543record: 2-3 | new rating: 1501 | |||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 49 | Powell, John A (1500) | Lost 1-2 | -181482 |
| 2standard | 309 | Leeman, Cory (1482) | Won 1-0 | +181500 |
| 3standard | 322 | Zavagnini, Franco (1502) | Won 2-1 | +181518 |
| 4standard | 252 | Kemple, Christopher (1518) | Lost 0-2 | -181500 |
| 5standard | 217 | Gibson, William (1496) | Won 2-1 | +181518 |
| 6standard | 245 | Chenevert, Ryan (1522) | Won 2-1 | +181536 |
| 7standard | 114 | Lewis, Jason S (1535) | Lost 0-2 | -181518 |
| average opponent: 1508record: 4-3 | new rating: 1518 | |||