Brosstoff, Jon
Current rating: 1499
Record: 2-2
| Grand Prix Washington DC 1999 (UDS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 89 | Olmo, Daniel (1500) | Won 0-0 | +181518 |
| 2sealed | 78 | Hall, Andy (1518) | Lost 0-0 | -181500 |
| 3sealed | 124 | Martin, Matthew (1500) | Won 0-0 | +181518 |
| 4sealed | 103 | Lynch, Brian (1475) | Lost 0-0 | -191499 |
| average opponent: 1498record: 2-2 | new rating: 1499 | |||