Langrall, Martin
Current rating: 1397
| Grand Prix Oklahoma City 2013 (THS limited) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 155 | Angelo, Michael (1500) | Lost 1-2 | -171413 |
| 2sealed | 402 | Ray, Billy (1482) | Won 2-0 | +201433 |
| 3sealed | 450 | Sickles, Brendan (1483) | Lost 0-2 | -181415 |
| 4sealed | 448 | Miller, Michael (1390) | Lost 0-2 | -181397 |
| top | average opponent: 1464record: 1-3 | new rating: 1397 | ||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 154 | Sorrell, Stephen D (1500) | Won 2-0 | +191483 |
| 2sealed | 180 | Kohler, Michael (1517) | Lost 0-2 | -181465 |
| 3sealed | 184 | McGraw, Nathan (1502) | Lost 1-2 | -171448 |
| 4sealed | 307 | Hunt, Justin (1450) | Lost 0-2 | -181430 |
| top | average opponent: 1492record: 1-3 | new rating: 1430 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 168 | Hipp, Sarah (1500) | Lost 0-2 | -181482 |
| 2sealed | 278 | Sokay, Alexander (1482) | Lost 0-2 | -181464 |
| top | average opponent: 1491record: 0-2 | new rating: 1464 | ||