Izumi, Kimiaki
Current rating: 1594
Record: 51-40-1 (GP) / 1-6 (professional)
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1574 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 112 | Yew, Yu Win (1539) | Won 2-0 | +171591 |
| 3sealed | 93 | Ishimaru, Ken (1720) | Won 2-1 | +201611 |
| 4sealed | 62 | Senba, Kotaro (1741) | Won 2-0 | +211632 |
| 5sealed | 11 | Gotou, Atsushi (1527) | Won 2-0 | +161648 |
| 6sealed | 34 | Tsukagoshi, Tadaki (1661) | Lost 1-2 | -181630 |
| 7sealed | 34 | Naitou, Takashi (1584) | Won 2-0 | +171647 |
| 8sealed | 47 | Doi, Kakeru (1565) | Lost 1-2 | -191628 |
| 9sealed | 56 | Shiraishi, Ryou (1679) | Won 2-0 | +191647 |
| 10draft | 58 | Fujimoto, Takehiro (1669) | Lost 0-2 | -181629 |
| 11draft | 30 | Shigehara, Toshinori (1713) | Lost 0-2 | -161613 |
| 12draft | 62 | Lee, Kil-Ho (1480) | Lost 0-2 | -211592 |
| 14draft | 14 | Cho, Jeong Woo (1678) | Lost 0-2 | -161576 |
| 15draft | 24 | Tateishi, Yuuya (1569) | Won 2-0 | +181594 |
| top | average opponent: 1625record: 7-6 | new rating: 1594 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1595 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 5 | Kobayashi, Satoshi (1491) | Won 2-0 | +161611 |
| 3standard | 70 | Yuuya Y., (1536) | Lost 1-2 | -201591 |
| 4standard | 232 | Iwasawa, Fumiya (1563) | Lost 1-2 | -181573 |
| 5standard | 234 | Watabe, Seigo (1503) | Won 2-1 | +171590 |
| 6standard | 157 | Saito, Takaya (1708) | Lost 1-2 | -161574 |
| top | average opponent: 1560record: 2-3 | new rating: 1574 | ||
| Pro Tour Nagoya 2011 (Scars block) | starting rating: 1687 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 159 | Keren, Tom (1591) | Lost 1-2 | -201667 |
| 2block | 112 | Murakami, Kazuya3837 (1611) | Lost 1-2 | -191648 |
| 3block | 138 | Kuo, Tzu-Ching (1803) | Lost 1-2 | -151633 |
| 4block | 165 | Bernat, Michael (1746) | Lost 1-2 | -161617 |
| 5block | 174 | Young, Ryan (1452) | Won 2-0 | +151632 |
| 6draft | 63 | Ganz, Andreas (1684) | Lost 1-2 | -171615 |
| 8draft | 10 | Mascioli, Chris (1480) | Lost 1-2 | -201595 |
| top | average opponent: 1624record: 1-6 | new rating: 1595 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 47 | I., Takahiro (1500) | Won 2-1 | +171533 |
| 2extended | 85 | Nishimoto, Kouhei (1518) | Lost 0-2 | -181515 |
| 3extended | 174 | Mantani, Keiji (1550) | Won 2-0 | +191534 |
| 4extended | 145 | Katamine, Kentarou (1533) | Won 2-0 | +181552 |
| 5extended | 77 | Yamashita, Shuji (1537) | Won 2-1 | +181570 |
| 6extended | 30 | Inoue, Toru (1675) | Lost 0-2 | -171553 |
| 7extended | 72 | Yanase, Kaname (1478) | Won 2-0 | +171570 |
| 8extended | 97 | Takao, Akinao (1580) | Won 2-1 | +181588 |
| 9extended | 56 | Matsuda, Issui (1665) | Won 2-1 | +201608 |
| 10extended | 38 | Koyanagi, Takashi (1505) | Won 2-1 | +161624 |
| 11extended | 6 | Takahira, Shunsuke (1610) | Won 2-1 | +181642 |
| 12extended | 12 | Okauchi, Yuuta (1656) | Won 2-0 | +181660 |
| 13extended | 2 | Aka, Shunsuke (1827) | Lost 0-2 | -151645 |
| 14extended | 27 | Brumby, Gene (1759) | Won 2-0 | +201665 |
| 15extended | 34 | Kurihara, Shingou (1899) | Won 2-1 | +221687 |
| top | average opponent: 1619record: 12-3 | new rating: 1687 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 130 | Kikuchi, Yuuji (1684) | Lost 1-2 | -161537 |
| 3extended | 127 | Sakaguchi, Makoto (1483) | Lost 0-2 | -191518 |
| 4extended | 225 | Kadono, Takayuki (1489) | Won 2-1 | +181536 |
| 5extended | 140 | Tsukamoto, Tatsushi (1480) | Lost 1-2 | -191517 |
| 6extended | 176 | Abe, Keisuke (1507) | Won 2-1 | +181535 |
| 7extended | 56 | Maki, Toshiya (1490) | Lost 1-2 | -191516 |
| top | average opponent: 1522record: 2-4 | new rating: 1516 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 244 | Hanawa, Atsushi (1398) | Won 0-0 | +151576 |
| 2sealed | 127 | Tokuyama, Kouta (1538) | Lost 1-2 | -191557 |
| 3sealed | 145 | Hayashi, Masashi (1448) | Won 2-0 | +161573 |
| 4sealed | 182 | Okuda, Masateru (1450) | Won 2-0 | +161589 |
| 5sealed | 47 | Mori, Daisuke (1559) | Won 2-0 | +181607 |
| 6sealed | 195 | Sakaguchi, Naoki (1659) | Won 2-0 | +181625 |
| 7sealed | 88 | Yamamoto, Daichi (1508) | Won 2-1 | +161641 |
| 8sealed | 28 | Nonaka, Kentarou (1746) | ID | 01641 |
| 9draft | 13 | Hanaoka, Toshifumi (1666) | Lost 0-2 | -171624 |
| 10draft | 26 | Nagao, Keisuke (1538) | Lost 0-2 | -201604 |
| 11draft | 11 | Okada, Hiroaki (1605) | Lost 0-2 | -181586 |
| 12draft | 22 | Taru, Genki (1771) | Lost 0-2 | -141572 |
| 14draft | 14 | Kaga, Hiroyuki (1535) | Lost 1-2 | -191553 |
| top | average opponent: 1571record: 6-6-1 | new rating: 1553 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1549 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 11 | Morishita, Taiki (1504) | Lost 0-1 | -191530 |
| 2sealed | 156 | Yasuda, Takuo (1391) | Lost 1-2 | -201510 |
| 3sealed | 168 | Tachibana, Shinichiro (1485) | Won 2-0 | +171527 |
| 4sealed | 151 | Morinaga, Masaharu (1480) | Won 2-1 | +181545 |
| 5sealed | 138 | Aoki, Kazuya (1611) | Lost 0-2 | -171528 |
| 6sealed | 126 | Aono, Yoshio (1425) | Won 2-1 | +161544 |
| 7sealed | 81 | Juumonji, Tarou (1489) | Won 2-1 | +171561 |
| top | average opponent: 1484record: 4-3 | new rating: 1561 | ||
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1573 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 68 | Deyama, Hirofumi (1374) | Won 2-0 | +141587 |
| 2extended | 39 | Nakatani, Haruki (1599) | Won 2-0 | +181605 |
| 3extended | 17 | Shiki, Kazumasa (1863) | Lost 1-2 | -131592 |
| 4extended | 79 | Saitou, Shintaro (1520) | Lost 0-2 | -191573 |
| 5extended | 72 | Kai, Hiroyuki (1501) | Lost 1-2 | -201553 |
| 6extended | 98 | Hirose, Daichi (1464) | Won 2-0 | +171570 |
| 7extended | 70 | Nagata, Satoshi (1431) | Lost 0-2 | -211549 |
| top | average opponent: 1536record: 3-4 | new rating: 1549 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 55 | Akamine, Toshihiro (1500) | Lost 0-2 | -181473 |
| 2extended | 139 | Ouchi, Akimasa (1482) | Won 2-0 | +191492 |
| 3extended | 99 | Kobayashi, Hiromasa (1439) | Won 2-0 | +171509 |
| 4extended | 94 | Tashiro, Yoshiaki (1711) | Lost 0-2 | -151494 |
| 5extended | 117 | Itou, Takanori (1464) | Won 2-0 | +181512 |
| 6extended | 97 | Osawa, Takuya (1675) | Won 2-1 | +211533 |
| 7extended | 67 | Azuma, Motokiyo (1789) | Won 2-1 | +221555 |
| 8extended | 57 | Akashi, Masato (1530) | Won 2-1 | +181573 |
| top | average opponent: 1574record: 6-2 | new rating: 1573 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 68 | Shibuya, Tsutomu (1428) | Lost 0-2 | -201533 |
| 2sealed | 255 | Kobayashi, Hajime (1416) | Won 2-1 | +161549 |
| 3sealed | 118 | Umeda, Soichiro (1500) | Lost 1-2 | -191530 |
| 4sealed | 247 | Tezuka, Yuuki (1397) | Draw 1-1 | -31527 |
| 5sealed | 218 | Kawamura, Kazushi (1561) | Lost 0-2 | -171510 |
| 6sealed | 201 | Nakagawa, Kazunori (1465) | Lost 0-2 | -191491 |
| top | average opponent: 1461record: 1-4-1 | new rating: 1491 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 312 | Sato, Shinichi (1586) | Lost 0-2 | -171540 |
| 2block | 548 | Ueda, Yoshiki (1482) | Lost 0-2 | -191521 |
| 3block | 606 | Nishimura, Kazuhisa (1463) | Won 2-0 | +171538 |
| 4block | 537 | Maeda, Hideyasu (1482) | Won 2-0 | +171555 |
| 5block | 409 | Yoshida, Toshiaki (1500) | Won 2-0 | +171572 |
| 6block | 301 | Suzuki, Takaaki (1540) | Lost 0-2 | -191553 |
| top | average opponent: 1509record: 3-3 | new rating: 1553 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1 | Sato, Hideyuki (1534) | Won 2-1 | +191519 |
| 2sealed | 25 | Kotsuma, Taiichi (1518) | Won 2-0 | +181537 |
| 3sealed | 32 | Hino, Toshiyuki (1518) | Won 2-1 | +171554 |
| 4sealed | 30 | Maruyama, Tomohiro (1724) | Lost 1-2 | -151539 |
| 5sealed | 37 | Kuyama, Yusuke (1537) | Lost 0-2 | -181521 |
| 6sealed | 84 | Kaneko, Masanori (1521) | Won 2-0 | +181539 |
| 7sealed | 58 | Niwa, Toshiharu (1540) | Won 2-1 | +181557 |
| top | average opponent: 1556record: 5-2 | new rating: 1557 | ||