Chisum, Matthew
Current rating: 1465
Record: 1-3
| Grand Prix Phoenix 2020 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 124 | Watson, Nephi (1415) | Lost 0-2 | -201480 |
| 2pioneer | 233 | Chua, John (1440) | Lost 1-2 | -181462 |
| 3pioneer | 410 | Cuberly, Matthew (1462) | Won 2-0 | +181480 |
| 4pioneer | 417 | Fox, Brian (1682) | Lost 0-2 | -151465 |
| average opponent: 1500record: 1-3 | new rating: 1465 | |||