Tani, Tokuo
Current rating: 1346
Record: 26-43-1
| Grand Prix Okayama 2004 (extended) | starting rating: 1324 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 104 | Takagaki, Naomasa (1500) | Won 2-0 | +211345 |
| 2extended | 7 | Okada, Masami (1506) | Lost 1-2 | -151330 |
| 3extended | 84 | Hara, Yasuharu (1517) | Lost 0-2 | -141316 |
| 4extended | 146 | Nanamori, Yuki (1482) | Won 2-1 | +211337 |
| 5extended | 147 | Shibata, Toshiya (1486) | Won 2-0 | +201357 |
| 6extended | 71 | Katsu, Masahiro (1437) | Won 2-1 | +201377 |
| 7extended | 47 | Ikezaki, Yutaro (1508) | Lost 1-2 | -161361 |
| 8extended | 67 | Katou, Masanari (1536) | Lost 1-2 | -151346 |
| top | average opponent: 1496record: 4-4 | new rating: 1346 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1364 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 164 | Wakae, Akio (1464) | Won 2-0 | +201384 |
| 2block | 47 | Nakazawa, Kazuhiro (1586) | Lost 1-2 | -141370 |
| 3block | 243 | Kudo, Koichi (1432) | Lost 1-2 | -171353 |
| 4block | 287 | Okamura, Shinya (1474) | Won 2-0 | +201373 |
| 5block | 273 | Tanaka, Yoshimitsu (1432) | Lost 1-2 | -171356 |
| 6block | 265 | Hamasuna, Toshitaka (1464) | Lost 1-2 | -161340 |
| 7block | 263 | Omata, Yuuji (1464) | Lost 1-2 | -161324 |
| top | average opponent: 1474record: 2-5 | new rating: 1324 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1343 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Nishimura, Sho (1375) | Lost 0-2 | -171326 |
| 2sealed | 251 | Yamada, Tsutomu (1565) | Lost 1-2 | -141312 |
| 3sealed | 261 | Murasawa, Yuuya (1464) | Won 2-0 | +211333 |
| 4sealed | 227 | Hayashi, Kiwamu (1484) | Won 2-1 | +211354 |
| 5sealed | 206 | Tamura, Takashi (1533) | Won 2-0 | +211375 |
| 6sealed | 140 | Morimoto, Manabu (1555) | Lost 1-2 | -151360 |
| 7sealed | 138 | Kuwabara, Shuko (1502) | Lost 1-2 | -151345 |
| 8sealed | 84 | Oosaki, Masakazu (1420) | Won 2-1 | +191364 |
| top | average opponent: 1487record: 4-4 | new rating: 1364 | ||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1309 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 3 | Satou, Yasuyuki (1536) | Won 2-0 | +221331 |
| 2extended | 77 | Ishii, Keisuke (1590) | Won 2-1 | +231354 |
| 3extended | 20 | Higashino, Masayuki (1777) | Lost 1-2 | -111343 |
| 4extended | 100 | Fujita, Osamu (1702) | Lost 0-2 | -121331 |
| 5extended | 107 | Okuyama, Masahide (1506) | Lost 1-2 | -141317 |
| 6extended | 132 | Miyaoka, Hiroyuki (1486) | Lost 0-2 | -151302 |
| 7extended | 120 | Kayaki, Kazuya (1466) | Won 2-0 | +211323 |
| 8extended | 89 | Ikezaki, Yutaro (1483) | Won 2-1 | +201343 |
| top | average opponent: 1568record: 4-4 | new rating: 1343 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1321 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 140 | Kawamura, Makoto (1518) | Lost 0-2 | -141307 |
| 2sealed | 307 | Mori, Daisuke (1482) | Lost 1-2 | -151292 |
| 3sealed | 274 | Anma, Yoichi (1446) | Lost 0-2 | -151277 |
| 4sealed | 282 | Suzuki, Hirofumi (1416) | Lost 1-2 | -161261 |
| 5sealed | 249 | Duffy, Jim (1430) | Won 2-0 | +211282 |
| 6sealed | 195 | Isami, Yuichiro (1449) | Won 2-1 | +211303 |
| 7sealed | 158 | Takahashi, Terue (1463) | Won 2-1 | +211324 |
| 8sealed | 46 | Takada, Masahiro (1483) | Lost 1-2 | -151309 |
| top | average opponent: 1461record: 3-5 | new rating: 1309 | ||
| Grand Prix Sapporo 2002 (Odyssey block) | starting rating: 1335 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 51 | Ono, Ippei (1500) | Lost 1-2 | -151320 |
| 2block | 144 | Sato, Takatoshi (1482) | Lost 0-2 | -151305 |
| 3block | 210 | Anraku, Tatsuro (1464) | Won 2-0 | +211326 |
| 4block | 189 | Ito, Kohei (1447) | Lost 0-2 | -161310 |
| 5block | 190 | Kondo, Yosuke (1476) | Won 2-1 | +211331 |
| 6block | 160 | Ando, Makoto (1465) | Won 2-0 | +201351 |
| 7block | 112 | Yoshikawa, Yuusuke (1540) | Lost 0-2 | -141337 |
| 8block | 48 | Kunishima, Mitsuhiro (1482) | Lost 0-2 | -161321 |
| top | average opponent: 1482record: 3-5 | new rating: 1321 | ||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1396 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 24 | Imaizumi, Takuya (1500) | Lost 0-2 | -161380 |
| 2sealed | 305 | Tamura, Kenichi (1556) | Lost 1-2 | -151365 |
| 3sealed | 302 | Mikami, Iesato (1464) | Draw 1-1 | +21367 |
| 4sealed | 293 | Saeki, Masaya (1462) | Lost 0-2 | -161351 |
| 5sealed | 271 | Umino, Takao (1449) | Lost 0-2 | -161335 |
| top | average opponent: 1486record: 0-4-1 | new rating: 1335 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 349 | Tago, Daisuke (1500) | Lost 1-2 | -171429 |
| 2block | 447 | Oiwa, Tadashi (1482) | Lost 0-2 | -171412 |
| 3block | 629 | Niiyama, Masahiro (1462) | Won 2-1 | +191431 |
| 4block | 539 | Okita, Yoichi (1481) | Lost 0-2 | -171414 |
| 5block | 559 | Shimada, Kazuhiro (1464) | Lost 1-2 | -181396 |
| top | average opponent: 1478record: 1-4 | new rating: 1396 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Satake, Yoshimori (1500) | Lost 0-2 | -181482 |
| 2sealed | 168 | Watanabe, Masami (1482) | Lost 1-2 | -181464 |
| 3sealed | 180 | Suzuki, Hirofumi (1464) | Lost 1-2 | -181446 |
| 4sealed | 188 | Konishi, Kohei (1445) | Won 2-1 | +181464 |
| 5sealed | 156 | Yamasaki, Sadaharu (1463) | Lost 1-2 | -181446 |
| top | average opponent: 1471record: 1-4 | new rating: 1446 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 84 | Morinaga, Kento (1500) | Lost 0-2 | -181482 |
| 2extended | 228 | Ikeda, Yasumasa (1482) | Lost 1-2 | -181464 |
| 3extended | 313 | Ishii, Toru (1464) | Won 2-0 | +181482 |
| 4extended | 296 | Takamine, Hideki (1465) | Lost 0-2 | -181464 |
| 5extended | 286 | Nishimura, Toshihide (1464) | Won 2-0 | +181482 |
| 6extended | 203 | Yamamoto, Arihiro (1481) | Lost 0-2 | -181464 |
| 7extended | 228 | Kurita, Yasuyuki (1464) | Won 2-1 | +181482 |
| 8extended | 171 | Sugiyama, Yoshitsugu (1482) | Won 2-1 | +181500 |
| top | average opponent: 1475record: 4-4 | new rating: 1500 | ||