Tsuboi, Masashi
Current rating: 1503
Record: 2-2
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 193 | Nishikawa, So (1500) | Won 2-0 | +181518 |
| 2sealed | 12 | Tomita, Kei (1572) | Lost 1-2 | -171501 |
| 3sealed | 182 | Hirota, Noriyuki (1568) | Won 2-0 | +191520 |
| 4sealed | 110 | Kunisato, Ebie (1583) | Lost 1-2 | -171503 |
| average opponent: 1556record: 2-2 | new rating: 1503 | |||