Kosak, Matthew
Current rating: 1480
Record: 2-3
| Grand Prix Omaha 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 55 | Malm, Zac (1500) | Lost 1-2 | -181482 |
| 2modern | 345 | Kinnison, Jeffrey (1448) | Won 2-1 | +171499 |
| 3modern | 435 | Rowe, Charles (1457) | Lost 0-2 | -181481 |
| 4modern | 463 | Janousek, Brian (1427) | Won 2-0 | +171498 |
| 5modern | 349 | Hopp, Chris (1499) | Lost 0-2 | -181480 |
| average opponent: 1466record: 2-3 | new rating: 1480 | |||