Mattson, Joshua
Current rating: 1501
Record: 4-4
| Grand Prix Omaha 2017 (AKH standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 228 | Casper, Bryan (1447) | Lost 0-2 | -191481 |
| 2standard | 227 | Badberg, Clint (1487) | Won 2-0 | +181499 |
| 3standard | 231 | Tennant, James (1499) | Lost 1-2 | -181481 |
| 4standard | 310 | Nielsen, Cameron (1431) | Won 2-0 | +171498 |
| 5standard | 213 | Garrett, James (1485) | Won 2-1 | +181516 |
| 6standard | 223 | Cullers, Cory (1519) | Won 2-1 | +181534 |
| 7standard | 127 | Ma, Thomas (1651) | Lost 0-2 | -161518 |
| 8standard | 212 | Reuschel, Carl (1540) | Lost 1-2 | -171501 |
| average opponent: 1508record: 4-4 | new rating: 1501 | |||