Grossman, Jonathan
Current rating: 1545
Record: 5-3
| Grand Prix Kansas City 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 104 | Seipel, Erich (1502) | Won 2-1 | +181518 |
| 2sealed | 16 | Heal, Bryan (1628) | Won 2-1 | +201538 |
| 3sealed | 63 | Benafel, Chris (1770) | Won 2-1 | +221560 |
| 4sealed | 7 | Alt, Judah (1511) | Won 2-1 | +171577 |
| 5sealed | 34 | Estrin, Aaron (1508) | Lost 1-2 | -191558 |
| 6sealed | 61 | Herbert, Rich (1599) | Won 2-0 | +191577 |
| 7sealed | 38 | De Rosa, Antonino (1861) | Lost 1-2 | -131564 |
| 8sealed | 54 | Wichert, Kelly (1527) | Lost 1-2 | -191545 |
| average opponent: 1613record: 5-3 | new rating: 1545 | |||