Shigehara, Akinori
Current rating: 1358
Record: 8-17-1
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1382 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 293 | Katou, Dai (1360) | Lost 0-0 | -181364 |
| 2sealed | 242 | ogino, akito (1483) | Won 2-1 | +201384 |
| 3sealed | 190 | Saitou, Kazuya (1407) | Lost 0-2 | -171367 |
| 4sealed | 210 | Seo, Asako (1318) | Lost 0-2 | -191348 |
| 5sealed | 240 | Yagi, Hiroyuki (1544) | Won 2-1 | +211369 |
| 6sealed | 70 | Ooba, Hideto (1520) | Lost 1-2 | -151354 |
| 7sealed | 20 | Kato, Takanori (1468) | Lost 1-2 | -161338 |
| 8sealed | 139 | matsumoto, akiyoshi (1450) | Won 2-1 | +201358 |
| top | average opponent: 1444record: 3-5 | new rating: 1358 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1432 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 96 | Muranaka, Hiroya (1540) | Lost 0-2 | -161416 |
| 2block | 251 | Kobayashi, Masanori (1447) | Lost 1-2 | -181398 |
| 3block | 331 | Oono, Kai (1463) | Lost 0-2 | -171381 |
| 4block | 373 | Miura, Tadayuki (1368) | Lost 1-2 | -181363 |
| 5block | 351 | Tanimoto, Ryuichi (1361) | Won 2-1 | +181381 |
| 6block | 291 | Yoshimura, Motoki (1280) | Lost 1-2 | -201361 |
| 7block | 253 | Enomoto, Masae (1413) | Won 2-1 | +191380 |
| 8block | 197 | Ando, Junichi (1441) | Won 2-0 | +191399 |
| 9block | 155 | Ishihara, Susumu (1460) | Lost 1-2 | -171382 |
| top | average opponent: 1419record: 3-6 | new rating: 1382 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 14 | Yamada, Chiaki (1482) | Lost 0-2 | -181473 |
| 2sealed | 164 | Yanagizawa, Kazutoyo (1413) | Lost 1-2 | -191454 |
| 3sealed | 151 | Onta, Hirofumi (1332) | Lost 0-2 | -211433 |
| 4sealed | 177 | Yamada, Shunsuke (1340) | Draw 1-1 | -11432 |
| top | average opponent: 1392record: 0-3-1 | new rating: 1432 | ||
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 75 | Suenaga, Shinichirou (1500) | Won 2-1 | +181518 |
| 2extended | 56 | Ishihara, Jun (1723) | Lost 0-2 | -141504 |
| 3extended | 79 | Tanaka, Atsushi (1597) | Won 2-0 | +191523 |
| 4extended | 76 | Sogabe, Ippei (1649) | Lost 1-2 | -151508 |
| 5extended | 90 | Kataoka, Asami (1576) | Lost 0-2 | -171491 |
| top | average opponent: 1609record: 2-3 | new rating: 1491 | ||