Iwasaki, Akira
Current rating: 1329
Record: 18-31-2
| Grand Prix Kobe 2017 (modern) | starting rating: 1354 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 582 | Takagi, Kengo (1454) | Lost 0-2 | -161338 |
| 2modern | 660 | Isogai, Yusuke (1449) | Won 2-1 | +201358 |
| 3modern | 1129 | Shikauchi, Hitoshi (1499) | Lost 1-2 | -151343 |
| 4modern | 1067 | Kouge, Kazuhiro (1582) | Lost 0-2 | -141329 |
| top | average opponent: 1496record: 1-3 | new rating: 1329 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1402 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 270 | Ikeda, Ryota (1659) | Lost 0-2 | -131389 |
| 2standard | 632 | Ishihara, Masayuki (1482) | Lost 0-2 | -161373 |
| 3standard | 1202 | Mochizuki, Katsuhiko (1358) | Lost 0-2 | -191354 |
| top | average opponent: 1500record: 0-3 | new rating: 1354 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 201 | Matsuda, Issei (1500) | Won 2-1 | +191447 |
| 2modern | 139 | Yoshinaga, Mitsuteru (1760) | Lost 1-2 | -121435 |
| 3modern | 346 | Enomoto, Yuuki (1501) | Lost 0-2 | -171418 |
| 4modern | 462 | Diogo, Fernando (1554) | Lost 1-2 | -161402 |
| top | average opponent: 1579record: 1-3 | new rating: 1402 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 328 | Fukui, Shunsuke (1446) | Lost 0-2 | -171422 |
| 2standard | 413 | Kawabata, Hiromasa (1440) | Won 2-1 | +181440 |
| 3standard | 358 | Ota, Keisuke (1595) | Won 2-1 | +211461 |
| 4standard | 369 | Matsuo, Yoshiyuki (1537) | Lost 1-2 | -171444 |
| 5standard | 380 | Taura, Ryuji (1548) | Lost 0-2 | -161428 |
| top | average opponent: 1513record: 2-3 | new rating: 1428 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 4 | Sumitomo, Yusuke (1500) | Won 2-0 | +191485 |
| 2standard | 129 | Hattori, Taiki (1603) | Lost 0-2 | -161469 |
| 3standard | 249 | Shiraishi, Tomomi (1810) | Lost 1-2 | -121457 |
| 4standard | 255 | Satou, Takashi (1475) | Lost 0-2 | -181439 |
| top | average opponent: 1597record: 1-3 | new rating: 1439 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 229 | Suzuki, Mikito (1424) | Won 2-0 | +181472 |
| 2extended | 167 | Oda, Naoki (1507) | Won 2-0 | +191491 |
| 3extended | 48 | Koyama, Yuji (1529) | Lost 0-2 | -181473 |
| 4extended | 142 | Baba, Yasunori (1729) | Lost 0-2 | -131460 |
| 5extended | 247 | M., Hiroshi (1460) | Won 2-1 | +181478 |
| 6extended | 115 | Ishii, Taisuke (1848) | Lost 0-2 | -121466 |
| top | average opponent: 1583record: 3-3 | new rating: 1466 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 90 | Matsumoto, Yoshifumi (1482) | Draw 1-1 | 01495 |
| 2extended | 149 | Mizuno, Akimitsu (1267) | Lost 1-2 | -221473 |
| 3extended | 199 | Takahashi, Tatsurou (1479) | Won 2-1 | +181491 |
| 4extended | 179 | Ito, Wataru (1479) | Lost 1-2 | -181473 |
| 5extended | 214 | Yamasaki, Sadaharu (1379) | Won 2-0 | +161489 |
| 6extended | 163 | Yamada, Ryuichiro (1604) | Lost 0-2 | -161473 |
| 7extended | 10 | Tonouchi, Keita (1523) | Draw 1-1 | +11474 |
| 8extended | 15 | Yoshida, Shinsuke (1379) | Lost 0-2 | -201454 |
| top | average opponent: 1449record: 2-4-2 | new rating: 1454 | ||
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 37 | Morii, Takayuki (1481) | Won 2-0 | +171546 |
| 2extended | 7 | Nakamura, Yuusuke (1527) | Lost 0-2 | -191527 |
| 3extended | 90 | Nakazawa, Kazuhiro (1624) | Lost 1-2 | -161511 |
| 4extended | 95 | Katayama, Hidenori (1638) | Lost 1-2 | -161495 |
| top | average opponent: 1567record: 1-3 | new rating: 1495 | ||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 49 | Omori, Ken'ichirou (1500) | Won 2-1 | +181518 |
| 2extended | 50 | Hada, Mikio (1552) | Won 2-0 | +191537 |
| 3extended | 15 | Higaki, Takao (1824) | Won 2-0 | +231560 |
| 4extended | 35 | Nakajima, Jun-Ichi (1568) | Lost 0-2 | -181542 |
| 5extended | 34 | Morisaki, Nobuki (1521) | Won 2-1 | +181560 |
| 6extended | 15 | Higashino, Masayuki (1798) | Lost 0-2 | -141546 |
| 7extended | 58 | Miyamoto, Satoshi (1509) | Won 2-1 | +171563 |
| 8extended | 42 | Ayama, Takashi (1591) | Won 2-1 | +191582 |
| 9extended | 28 | Azuma, Motokiyo (1568) | Lost 0-2 | -191563 |
| 10extended | 26 | Osaki, Motohiro (1558) | Lost 0-2 | -181545 |
| 11extended | 31 | Iwai, Tsuyoshi (1661) | Lost 0-2 | -161529 |
| 13extended | 27 | Kawasaki, Yasuhiro (1498) | Lost 0-2 | -181511 |
| 14extended | 28 | Yano, Ryuji (1496) | Won 2-1 | +181529 |
| top | average opponent: 1588record: 7-6 | new rating: 1529 | ||