Kobayashi, Akihito
Current rating: 1367
Record: 24-36-3
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1356 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 187 | Fujita, Satoshi (1428) | Draw 1-1 | +21358 |
| 2sealed | 133 | Hasegawa, Shigeyuki (1518) | Won 2-0 | +201378 |
| 3sealed | 89 | Ida, Takahito (1516) | Lost 0-2 | -151363 |
| 4sealed | 163 | Sato, Daisuke (1418) | Won 2-0 | +191382 |
| 5sealed | 111 | Ichikawa, Kazuyuki (1556) | Lost 1-2 | -151367 |
| top | average opponent: 1487record: 2-2-1 | new rating: 1367 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1384 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 54 | Okutomi, Hiromitsu (1559) | Lost 0-2 | -151369 |
| 2extended | 120 | Yamada, Uchu (1420) | Lost 1-2 | -171352 |
| 3extended | 159 | Inoue, Masashi (1351) | Won 2-0 | +181370 |
| 4extended | 163 | Kataoka, Asami (1595) | Lost 0-2 | -141356 |
| top | average opponent: 1481record: 1-3 | new rating: 1356 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1362 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 24 | Aoki, Yousaku (1584) | Won 2-0 | +221384 |
| 2sealed | 76 | Ota, Yuji (1518) | Won 2-0 | +201404 |
| 3sealed | 18 | Ishigaki, Ryouji (1535) | Won 2-0 | +201424 |
| 4sealed | 7 | Tsumura, Kenji (1628) | Lost 0-2 | -141410 |
| 5sealed | 65 | Yamagishi, Yuichi (1836) | Lost 0-2 | -111399 |
| 6sealed | 149 | Mori, Junpei (1556) | Lost 1-2 | -151384 |
| top | average opponent: 1610record: 3-3 | new rating: 1384 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1410 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 222 | Eura, Hiroki (1457) | Lost 0-2 | -181392 |
| 2block | 276 | Sumita, Masanobu (1605) | Lost 0-2 | -141378 |
| 3block | 347 | Toshida, Shin'ichi (1448) | Lost 1-2 | -161362 |
| top | average opponent: 1503record: 0-3 | new rating: 1362 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 150 | Nakagawa, Kazunori (1500) | Won 2-0 | +191450 |
| 2sealed | 138 | Ishida, Yuuichi (1518) | Lost 0-2 | -161434 |
| 3sealed | 248 | Ishihara, Jun (1758) | Lost 1-2 | -131421 |
| 4sealed | 262 | Kunimatsu, Kazuto (1483) | Lost 0-2 | -171404 |
| 5sealed | 234 | Sanjoba, Satoshi (1463) | Won 2-0 | +191423 |
| 6sealed | 199 | Iwai, Tsuyoshi (1657) | Lost 1-2 | -131410 |
| top | average opponent: 1563record: 2-4 | new rating: 1410 | ||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 67 | Nakashima, Kentarou (1483) | Draw 1-1 | 01483 |
| 2extended | 100 | Komaki, Naoki (1500) | Lost 1-2 | -181465 |
| 3extended | 156 | Sasaki, Takeshi (1536) | Lost 0-2 | -161449 |
| 4extended | 181 | Akamatsu, Satoshi (1464) | Lost 0-2 | -181431 |
| top | average opponent: 1495record: 0-3-1 | new rating: 1431 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 7 | Mizuno, Akimitsu (1482) | Won 2-1 | +191452 |
| 2sealed | 23 | Bandou, Junichirou (1519) | Lost 0-2 | -161436 |
| 3sealed | 213 | Sato, Shigeru (1501) | Won 2-1 | +191455 |
| 4sealed | 112 | Kubota, Toru (1555) | Won 2-1 | +201475 |
| 5sealed | 87 | Hiyama, Taku (1522) | Lost 0-2 | -181457 |
| 6sealed | 109 | Shinozaki, Yuu (1654) | Won 2-0 | +221479 |
| 7sealed | 102 | Kurosawa, Yoshihito (1590) | Won 2-1 | +201499 |
| 8sealed | 57 | Ito, Ken (1621) | Lost 1-2 | -161483 |
| top | average opponent: 1555record: 5-3 | new rating: 1483 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 125 | Tsujimoto, Hideki (1500) | Lost 0-2 | -171450 |
| 2sealed | 119 | Hattori, Shinichi (1482) | Lost 0-2 | -171433 |
| 3sealed | 177 | Nakashima, Takashi (1464) | Won 2-0 | +181451 |
| 4sealed | 155 | Takakura, Takeshi (1466) | Lost 0-1 | -181433 |
| top | average opponent: 1478record: 1-3 | new rating: 1433 | ||
| Grand Prix Sendai 2001 (extended) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 52 | Kawashima, Kazuya (1467) | Won 2-0 | +181503 |
| 2extended | 62 | Kurosawa, Yoshihito (1518) | Won 2-0 | +181521 |
| 3extended | 24 | Toochika, Takayuki (1509) | Lost 0-2 | -181503 |
| 4extended | 102 | Eura, Hiroki (1512) | Lost 0-2 | -181485 |
| 5extended | 142 | Anazawa, Yoshikazu (1499) | Lost 0-2 | -181467 |
| top | average opponent: 1501record: 2-3 | new rating: 1467 | ||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 83 | Yoshizawa, Toshio (1470) | Won 2-0 | +181501 |
| 2sealed | 129 | Yun, Suhan (1511) | Won 2-1 | +181519 |
| 3sealed | 52 | Tokita, Toshimi (1535) | Won 2-0 | +191538 |
| 4sealed | 3 | Sasaki, Yusuke (Sendai) (1492) | Lost 0-2 | -191519 |
| 5sealed | 100 | Koji, Kazumasa (1640) | Lost 1-2 | -161503 |
| 6sealed | 157 | Kakita, Masashi (1523) | Lost 0-2 | -181485 |
| top | average opponent: 1529record: 3-3 | new rating: 1485 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 386 | Nimura, Yuka (1500) | Won 2-0 | +181500 |
| 2block | 267 | Nemoto, Takashi (1555) | Won 2-0 | +191519 |
| 3block | 136 | Ishihara, Jun (1518) | Lost 0-2 | -181501 |
| 4block | 206 | Akashi, Masato (1500) | Won 2-0 | +181519 |
| 5block | 192 | Furuta, Shinichi (1535) | Lost 1-2 | -181501 |
| 6block | 264 | Ogawa, Taiki (1501) | Lost 0-2 | -181483 |
| top | average opponent: 1518record: 3-3 | new rating: 1483 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 75 | Yokoyama, Shoichi (1500) | Lost 0-2 | -181482 |
| 2sealed | 183 | Kiori, Hiroshi (1482) | Won 2-1 | +181500 |
| 3sealed | 105 | Miyatani, Satoshi (1500) | Lost 0-2 | -181482 |
| 4sealed | 133 | Higuchi, Mitsurei (1481) | Draw 1-1 | 01482 |
| 5sealed | 150 | Kondo, Takahito (1465) | Won 2-1 | +181500 |
| 6sealed | 111 | Ueno, Motohiro (1500) | Lost 0-2 | -181482 |
| top | average opponent: 1488record: 2-3-1 | new rating: 1482 | ||