McCumber, James
Current rating: 1527
Record: 5-4
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 422 | Peternell, Raymond (1761) | Won 2-1 | +231523 |
| 2standard | 377 | Mcnair, Justin (1515) | Lost 1-2 | -181505 |
| 3standard | 484 | Townsend, Nick (1500) | Won 2-1 | +171522 |
| 4standard | 413 | Mei, Mike Songhao (1667) | Won 2-1 | +211543 |
| 5standard | 263 | Alspach, Matthew (1494) | Won 2-0 | +171560 |
| 6standard | 90 | Albright, Brock (1593) | Lost 0-2 | -171543 |
| 7standard | 155 | Schroeder, Brian (1535) | Lost 0-2 | -181525 |
| 8standard | 252 | Byun, Chong (1652) | Lost 1-2 | -161509 |
| 9standard | 361 | Lubman, Jacob (1512) | Won 2-0 | +181527 |
| average opponent: 1581record: 5-4 | new rating: 1527 | |||