York, Matthew
Current rating: 1447
Record: 3-6
| Grand Prix Philadelphia 2000 (extended) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 198 | Sibilia, Wayne (1500) | Lost 0-0 | -181464 |
| 2extended | 180 | Damone, Chris (1481) | Won 0-0 | +191483 |
| 3extended | 211 | Weinstein, Kenny (1500) | Lost 0-0 | -181465 |
| 4extended | 217 | Maki, Allan (1482) | Lost 0-0 | -181447 |
| average opponent: 1491record: 1-3 | new rating: 1447 | |||
| Grand Prix Washington DC 1999 (UDS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 79 | Biondo, Brandon (1500) | Won 0-0 | +181518 |
| 2sealed | 4 | Koberer, Ellen (1534) | Lost 0-0 | -181500 |
| 3sealed | 141 | Rose, Michael (1500) | Won 0-0 | +181518 |
| 4sealed | 130 | Kauffman, Thomas (1501) | Lost 0-0 | -181500 |
| 5sealed | 120 | Harmon, Max (1500) | Lost 0-0 | -181482 |
| average opponent: 1507record: 2-3 | new rating: 1482 | |||