Sakamoto, Kazuya
Current rating: 1520
Record: 15-15-1
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1 | Takeuchi, Hidehito (1487) | Won 2-0 | +181528 |
| 2sealed | 42 | Harada, Shuhei (1518) | Won 2-0 | +171545 |
| 3sealed | 54 | Sato, Kimihiko (1654) | Won 2-1 | +201565 |
| 4sealed | 9 | Wada, Atsushi (1553) | Won 2-1 | +181583 |
| 5sealed | 28 | Yamagishi, Yuichi (1616) | Lost 1-2 | -171566 |
| 6sealed | 37 | Ishida, Itaru (1830) | Lost 1-2 | -141552 |
| 7sealed | 98 | Komiyama, Hideki (1635) | Lost 1-2 | -161536 |
| 8sealed | 114 | Kise, Masato (1637) | Lost 0-2 | -161520 |
| top | average opponent: 1616record: 4-4 | new rating: 1520 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 53 | Ishii, Hayato (1500) | Lost 1-2 | -191505 |
| 2sealed | 254 | Yagi, Akira (1527) | Draw 1-1 | +11506 |
| 3sealed | 252 | Muroi, Kazuaki (1555) | Won 2-0 | +191525 |
| 4sealed | 181 | Sato, Naoshi (1518) | Won 2-0 | +181543 |
| 5sealed | 117 | Takasaki, Yuichi (1626) | Lost 1-2 | -171526 |
| 6sealed | 156 | Suzuki, Mayumi (1491) | Won 2-0 | +171543 |
| 7sealed | 107 | Koura, Masahiro (1708) | Lost 0-2 | -151528 |
| 8sealed | 15 | Saito, Kaoru (1501) | Lost 1-2 | -181510 |
| top | average opponent: 1553record: 3-4-1 | new rating: 1510 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 38 | Koyashiki, Tsutomu (1500) | Lost 1-2 | -181486 |
| 2sealed | 134 | Yoshida, Masakazu (1535) | Lost 1-2 | -171469 |
| 3sealed | 165 | Matsuda, Motoki (1463) | Won 2-0 | +181487 |
| 4sealed | 143 | Koya, Hideo (1482) | Won 2-0 | +181505 |
| 5sealed | 113 | Saitou, Hiroaki (1501) | Won 2-1 | +181523 |
| 6sealed | 103 | Sumita, Masanobu (1591) | Lost 1-2 | -171506 |
| 7sealed | 118 | Shimizu, Masaaki (1499) | Won 2-0 | +181524 |
| top | average opponent: 1510record: 4-3 | new rating: 1524 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 30 | Nakamura, Yoshimasa (1518) | Won 2-1 | +181518 |
| 3block | 187 | Ito, Kenta (1499) | Lost 1-2 | -181500 |
| 4block | 213 | Idei, Kunihiko (1517) | Won 2-0 | +181518 |
| 5block | 250 | Takahama, Norimasa (1519) | Won 2-1 | +181536 |
| 6block | 156 | Furuta, Shinichi (1553) | Lost 0-2 | -171519 |
| 7block | 173 | Okamoto, Jin (1718) | Lost 0-2 | -151504 |
| 8block | 213 | Nakauchi, Mayumi (1502) | Won 2-1 | +181522 |
| 9block | 144 | Kiuchi, Masataka (1523) | Lost 0-2 | -181504 |
| top | average opponent: 1544record: 4-4 | new rating: 1504 | ||