Kamei, Toru
Current rating: 1421
Record: 28-40-1
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 31 | Mayaguchi, Masaru (1397) | Lost 1-2 | -191394 |
| 2standard | 197 | Katayama, Keiji (1482) | Won 2-1 | +201414 |
| 3standard | 211 | Katsu, Masahiro (1278) | Lost 1-2 | -201394 |
| 4standard | 262 | Shirotori, Ryousuke (1549) | Won 2-1 | +201414 |
| 5standard | 218 | Ryousuke S., (1500) | Draw 1-1 | +21416 |
| 6standard | 238 | Hiroki Y., (1500) | Lost 1-2 | -171399 |
| 7standard | 227 | Adachi, Ryosuke (1378) | Won 2-0 | +181417 |
| 8standard | 174 | Yamamoto, Satoshi (1497) | Won 2-0 | +201437 |
| 9standard | 128 | Kawashima, Yuki (1555) | Lost 0-2 | -161421 |
| top | average opponent: 1460record: 4-4-1 | new rating: 1421 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1421 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 62 | Niwa, Takeshi (1459) | Won 2-1 | +191440 |
| 2extended | 1 | Hibino, Yasutaka (1516) | Lost 0-2 | -171423 |
| 3extended | 158 | Prananta, Nico (1500) | Won 2-0 | +201443 |
| 4extended | 102 | Iritani, Kenichi (1519) | Won 2-1 | +191462 |
| 5extended | 81 | Tashiro, Kouichi (1640) | Lost 0-2 | -151447 |
| 6extended | 106 | Sekine, Kiyotaka (1544) | Lost 1-2 | -161431 |
| 7extended | 6 | Hitomi, Masaaki (1415) | Lost 1-2 | -181413 |
| top | average opponent: 1513record: 3-4 | new rating: 1413 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1402 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 299 | Hada, Atsushi (1485) | Won 0-0 | +191421 |
| 2sealed | 148 | Goto, Kosuke (1733) | Lost 1-2 | -121409 |
| 3sealed | 211 | Takebayashi, Tomo (1615) | Won 2-1 | +221431 |
| 4sealed | 148 | Iwasawa, Fumiya (1518) | Lost 1-2 | -171414 |
| 5sealed | 183 | Inanaga, Nobuyuki (1576) | Won 2-0 | +211435 |
| 6sealed | 173 | Takahira, Wataru (1345) | Lost 0-2 | -201415 |
| 7sealed | 150 | Sumita, Masanobu (1607) | Lost 0-2 | -141401 |
| 8sealed | 14 | Takahashi, Teo (1529) | Won 2-1 | +201421 |
| top | average opponent: 1551record: 4-4 | new rating: 1421 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1311 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 9 | Han, Dong-Hee (1500) | Won 2-1 | +221333 |
| 2block | 222 | Mizutani, Naoto (1500) | Lost 0-2 | -151318 |
| 3block | 268 | Warot, Wongpan (1496) | Won 2-0 | +211339 |
| 4block | 131 | Yoshioka, Ryouji (1620) | Won 2-0 | +231362 |
| 5block | 164 | Inoue, Junji (1607) | Won 2-1 | +221384 |
| 6block | 30 | Tsuboyama, Shuta (1506) | Won 2-1 | +211405 |
| 7block | 28 | Kawakami, Hiroshi (1695) | Lost 0-2 | -131392 |
| 8block | 94 | Ishimura, Shintaro (1841) | Lost 0-2 | -111381 |
| 9block | 105 | Sakurai, Taiki (1518) | Won 2-1 | +211402 |
| top | average opponent: 1587record: 6-3 | new rating: 1402 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1291 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 123 | Shibuya, Kouichi (1434) | Won 2-1 | +211312 |
| 2sealed | 21 | Inoue, Toru (1545) | Lost 0-2 | -141298 |
| 3sealed | 142 | Imai, Takashi (1519) | Lost 1-2 | -141284 |
| 4sealed | 137 | Taga, Yosuke (1477) | Won 2-0 | +211305 |
| 5sealed | 112 | Furukawa, Kazuya (1484) | Won 2-1 | +211326 |
| 6sealed | 71 | Miyaoka, Hiroyuki (1486) | Lost 0-2 | -151311 |
| top | average opponent: 1491record: 3-3 | new rating: 1311 | ||
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1331 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 76 | Mera, Kenichi (1499) | Won 2-1 | +211352 |
| 2extended | 59 | Saitou, Kotatsu (1550) | Lost 0-2 | -141338 |
| 3extended | 74 | Shiraishi, Hiroaki (1559) | Lost 0-2 | -141324 |
| 4extended | 99 | Kawate, Junpei (1483) | Lost 0-2 | -161308 |
| 5extended | 116 | Omori, Ken'ichirou (1336) | Lost 1-2 | -171291 |
| top | average opponent: 1485record: 1-4 | new rating: 1291 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1349 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 8 | Nakauchi, Mayumi (1547) | Lost 1-2 | -151334 |
| 2extended | 132 | Tsuzaki, Tatsuya (1482) | Lost 0-2 | -151319 |
| 3extended | 162 | Toriumi, Takashi (1295) | Lost 0-2 | -191300 |
| 4extended | 182 | Oka, Hiroyasu (1446) | Won 2-1 | +211321 |
| 5extended | 160 | Okamura, Hayato (1463) | Won 2-0 | +211342 |
| 6extended | 132 | Sasaki, Takeshi (1472) | Won 2-1 | +201362 |
| 7extended | 92 | Simabukuro, Moriaka (1499) | Lost 0-2 | -161346 |
| 8extended | 91 | Morishita, Taiki (1489) | Lost 0-2 | -151331 |
| top | average opponent: 1462record: 3-5 | new rating: 1331 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 116 | Yamauchi, Kouhei (1500) | Lost 1-2 | -161395 |
| 2block | 241 | Nakajima, Mikihito (1485) | Lost 0-2 | -171378 |
| 3block | 342 | Aihara, Hironori (1464) | Won 2-1 | +201398 |
| 4block | 267 | Wada, Tomohiro (1484) | Lost 0-2 | -171381 |
| 5block | 332 | Okutomi, Hiromitsu (1479) | Lost 1-2 | -161365 |
| 6block | 318 | Oota, Tatsuro (1445) | Lost 0-2 | -161349 |
| top | average opponent: 1476record: 1-5 | new rating: 1349 | ||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 45 | Maeda, Shingo (1500) | Lost 0-2 | -171446 |
| 2extended | 144 | Ishida, Naoyuki (1466) | Lost 1-2 | -181428 |
| 3extended | 161 | Sakuma, Takeshi (1482) | Lost 0-2 | -171411 |
| top | average opponent: 1483record: 0-3 | new rating: 1411 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 20 | Takei, Tomoyuki (1500) | Won 2-1 | +181518 |
| 2sealed | 109 | Yoshino, Eiichi (1523) | Won 2-0 | +181536 |
| 3sealed | 85 | Tsushima, Yusuke (1619) | Lost 0-2 | -161520 |
| 4sealed | 115 | Koen, Yusuke (1408) | Lost 0-2 | -201500 |
| 5sealed | 167 | Yasooka, Shota (1482) | Lost 0-2 | -191481 |
| 6sealed | 178 | Tsuda, Junichi (1432) | Won 2-1 | +171498 |
| 7sealed | 139 | Kitazawa, Toru (1540) | Lost 1-2 | -171481 |
| 8sealed | 49 | Sawada, Akane (1468) | Lost 1-2 | -181463 |
| top | average opponent: 1496record: 3-5 | new rating: 1463 | ||