Marshall, Corey
Current rating: 1499
Record: 4-4
| Grand Prix Omaha 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 198 | Howitt, Josh (1500) | Lost 0-2 | -181482 |
| 2modern | 413 | Maginley, Corey (1509) | Lost 1-2 | -181464 |
| 3modern | 544 | Lowry, Matthew (1507) | Won 2-0 | +191483 |
| 4modern | 483 | Farrell, Erik (1482) | Won 2-1 | +181501 |
| 5modern | 387 | Jordan, Zachary (1498) | Won 2-1 | +181519 |
| 6modern | 272 | Berg, Jordan (1539) | Won 2-1 | +191538 |
| 7modern | 120 | Hubbard, Joseph (1552) | Lost 1-2 | -181520 |
| 8modern | 196 | Trejo, Andres (1359) | Lost 0-2 | -211499 |
| average opponent: 1493record: 4-4 | new rating: 1499 | |||