Masamura, Ayumu
Current rating: 1452
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 28 | Ishigami, Kei (1492) | Lost 0-2 | -181469 |
| 2extended | 154 | Sugiyama, Yuya (1499) | Lost 0-2 | -181451 |
| 3extended | 180 | Shibuya, Kouichi (1448) | Won 2-1 | +181469 |
| 4extended | 177 | Katayama, Koujun (1482) | Lost 0-2 | -171452 |
| 5extended | 166 | Iwasaki, Yoshitaka (1429) | Lost 1-2 | -191433 |
| 6extended | 153 | Yamato, Masaru (1446) | Won 2-0 | +181451 |
| 7extended | 126 | Nonaka, Masafumi (1492) | Draw 1-1 | +11452 |
| top | average opponent: 1470record: 2-4-1 | new rating: 1452 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 376 | Asada, Katsuyuki (1500) | Won 2-0 | +181482 |
| 2block | 238 | Ohara, Kenji (1518) | Won 2-0 | +191501 |
| 3block | 100 | Taniuchi, Hideki (1534) | Won 2-1 | +191520 |
| 4block | 19 | Sueyoshi, Eisaku (1519) | Lost 0-2 | -181502 |
| 5block | 223 | Haneda, Daisuke (1539) | Lost 0-2 | -181484 |
| 6block | 357 | Shikata, Nobuaki (1594) | Won 2-1 | +201504 |
| 7block | 149 | Matsuoka, Tomohide (1536) | Lost 0-2 | -171487 |
| top | average opponent: 1534record: 4-3 | new rating: 1487 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 73 | Suzuki, Yoshinao (1500) | Won 2-1 | +181518 |
| 2extended | 2 | Suganuma, Yoshinori (1518) | Lost 0-2 | -181500 |
| 3extended | 157 | Itou, Shin (1482) | Lost 1-2 | -181482 |
| 4extended | 284 | Yamaguchi, Toru (1482) | Won 2-0 | +181500 |
| 5extended | 224 | Miyazaki, Kensuke (1500) | Lost 0-2 | -181482 |
| 6extended | 232 | Murayama, Yu (1480) | Lost 1-2 | -181464 |
| top | average opponent: 1494record: 2-4 | new rating: 1464 | ||