Anthon, J.R.
Current rating: 1499
Record: 3-3
| Grand Prix Philadelphia 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 12 | Plagman, Jeffrey W (1500) | Won 0-0 | +181518 |
| 2extended | 7 | Marks, Jason (1479) | Lost 0-0 | -191499 |
| 3extended | 107 | Lowenhaupt, Robert (1499) | Won 0-0 | +181517 |
| 4extended | 71 | DeGraw, David (1518) | Won 0-0 | +181535 |
| 5extended | 40 | Anders, Dorian (1485) | Lost 0-0 | -191516 |
| 6extended | 86 | Swan, Thomas (1569) | Lost 0-0 | -171499 |
| average opponent: 1508record: 3-3 | new rating: 1499 | |||