Winchester, Matthew
Current rating: 1493
Record: 3-3
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 346 | Hubert, Chris (1585) | Won 2-0 | +201520 |
| 2modern | 292 | Brassington, Cory (1529) | Won 2-1 | +181538 |
| 3modern | 30 | Grabs, Stefan (1509) | Lost 1-2 | -191519 |
| 4modern | 353 | Sweeney, Mark (1390) | Lost 0-2 | -201499 |
| 5modern | 467 | Bridges, Kayla (1203) | Won 2-1 | +131512 |
| 6modern | 283 | Escalante, Fernando (1459) | Lost 0-2 | -191493 |
| average opponent: 1446record: 3-3 | new rating: 1493 | |||