Gisch, Preston
Current rating: 1428
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 57 | Alfredsson, Henrik (1492) | Lost 1-2 | -181445 |
| 2sealed | 332 | Hedman, Garrett (1482) | Lost 1-2 | -171428 |
| top | average opponent: 1487record: 0-2 | new rating: 1428 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1550 | Carnahan, Scot (1538) | Won 2-1 | +191499 |
| 2legacy | 1692 | Sofia, Michael (1442) | Lost 0-2 | -191480 |
| 3legacy | 1862 | Rapport, Benjamin (1500) | Lost 0-2 | -171463 |
| top | average opponent: 1494record: 1-2 | new rating: 1463 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 44 | Sorensen, Derek (1467) | Lost 1-2 | -191481 |
| 2sealed | 342 | Battle, William (1350) | Won 2-0 | +161497 |
| 3sealed | 395 | Leal, Emmanuel (1566) | Lost 0-2 | -171480 |
| top | average opponent: 1461record: 1-2 | new rating: 1480 | ||