Iwamoto, Yoshitaka
Current rating: 1445
Record: 2-5
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 4 | Yamashita, Kohji (1450) | Lost 1-2 | -191481 |
| 2sealed | 120 | Maekawa, Tetsuro (1482) | Lost 1-2 | -181463 |
| 3sealed | 167 | Yamasaki, Satoru (1448) | Lost 0-2 | -181445 |
| average opponent: 1460record: 0-3 | new rating: 1445 | |||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 441 | Kano, Risei (1500) | Won 2-1 | +181518 |
| 2block | 327 | Ueno, Shinichi (1517) | Lost 0-2 | -181500 |
| 3block | 512 | Koga, Takuji (1499) | Won 2-0 | +181518 |
| 4block | 362 | Ishida, Yoshinobu (1518) | Lost 1-2 | -181500 |
| average opponent: 1508record: 2-2 | new rating: 1500 | |||