Ikeda, Yuuichirou
Current rating: 1679
Record: 38-29
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 85 | Itou, Kuninosuke (1303) | Won 2-0 | +141555 |
| 4sealed | 48 | Miyata, Kentaro (1548) | Won 2-0 | +171572 |
| 5sealed | 41 | Maki, Hidekazu (1839) | Won 2-0 | +231595 |
| 6sealed | 34 | Takeyama, Hiroaki (1593) | Lost 0-2 | -181577 |
| 7sealed | 49 | Uemura, Akira (1561) | Lost 1-2 | -181559 |
| 8sealed | 288 | Chen, Yiwen (1939) | Won 2-1 | +241583 |
| 9sealed | 224 | Sugaya, Hironobu (1861) | Won 2-0 | +231606 |
| 10draft | 181 | Miyake, Kyohei (1800) | Won 2-1 | +221628 |
| 11draft | 118 | Chee, Cristerson (1574) | Won 2-0 | +171645 |
| 12draft | 155 | Hattori, Taiki (1564) | Won 2-1 | +161661 |
| 13draft | 145 | Shima, Junichirou (1657) | Won 2-0 | +181679 |
| 14draft | 165 | Sakata, Naoya (1661) | Won 2-1 | +181697 |
| 15draft | 43 | Yamazaki, Tomoki (1707) | Lost 0-2 | -181679 |
| top | average opponent: 1662record: 10-3 | new rating: 1679 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 319 | Kurihara, Kanou (1467) | Won 2-0 | +171523 |
| 2standard | 18 | Jo, Bunkun (1518) | Won 2-0 | +181541 |
| 3standard | 49 | Shiraishi, Masaharu (1590) | Won 2-1 | +191560 |
| 4standard | 20 | Tsumura, Kenji (1941) | Won 2-0 | +251585 |
| 5standard | 18 | Nakano, Yoshitaka (1934) | Lost 0-2 | -121573 |
| 6standard | 100 | Tajima, Kouichi (1507) | Won 2-0 | +161589 |
| 7standard | 71 | Kubota, Yuuhi (1901) | Lost 1-2 | -121577 |
| 8standard | 82 | Sunada, Shougo (1795) | Won 2-0 | +221599 |
| 9standard | 33 | Endou, Yuusuke (1769) | ID | 01599 |
| 10standard | 60 | Oonishi, Tatsuya (1549) | Lost 1-2 | -191580 |
| 11standard | 61 | Yamazaki, Shun (1479) | Lost 1-2 | -201560 |
| 12standard | 62 | iwase, yoshikazu (1488) | Lost 0-2 | -191541 |
| top | average opponent: 1661record: 6-5-1 | new rating: 1541 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 32 | Yuki, Naruse (1500) | Lost 0-2 | -181489 |
| 2extended | 338 | Aihara, Hironori (1361) | Won 2-0 | +151504 |
| 3extended | 375 | Koyama, Kazuhiko (1500) | Won 2-0 | +181522 |
| 4extended | 235 | Katsuyama, Hikaru (1517) | Won 2-1 | +181540 |
| 5extended | 170 | Saito, Takaya (1715) | Lost 1-2 | -151525 |
| 6extended | 229 | Kinoshita, Atsushi (1447) | Lost 1-2 | -191506 |
| top | average opponent: 1507record: 3-3 | new rating: 1506 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 21 | Yagita, Masato (1500) | Lost 0-2 | -181526 |
| 2sealed | 301 | Ueki, Yuuya (1482) | Lost 1-2 | -191507 |
| top | average opponent: 1491record: 0-2 | new rating: 1507 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 230 | Yasuda, Masayuki (1549) | Won 0-0 | +191527 |
| 2sealed | 141 | Imai, Hideaki (1515) | Won 2-0 | +181545 |
| 3sealed | 14 | Kimura, Kazuaki (1661) | Won 2-1 | +201565 |
| 4sealed | 74 | Kaga, Hiroyuki (1533) | Won 2-0 | +171582 |
| 5sealed | 5 | Nakajima, Chikara (1692) | Lost 1-2 | -161566 |
| 6sealed | 108 | Tamura, Ryo (1602) | Won 2-1 | +191585 |
| 7sealed | 8 | Toyota, Hiroki (1457) | Lost 0-2 | -201565 |
| 8sealed | 58 | Mera, Kenichi (1434) | Lost 0-2 | -211544 |
| top | average opponent: 1556record: 5-3 | new rating: 1544 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1566 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 181 | Takagi, Takayuki (1500) | Lost 1-2 | -191547 |
| 2standard | 233 | Shimizu, Yasushi (1480) | Lost 1-2 | -201527 |
| 3standard | 321 | urata, teruki (1463) | Lost 1-2 | -191508 |
| top | average opponent: 1481record: 0-3 | new rating: 1508 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 61 | Kishi, Masafumi (1466) | Won 2-1 | +161594 |
| 2standard | 198 | Kabeshita, Yoshito (1464) | Won 2-0 | +151609 |
| 3standard | 52 | Kawaguchi, Akifumi (1551) | Won 2-1 | +171626 |
| 4standard | 60 | Sugaya, Hironobu (1483) | Lost 0-2 | -201606 |
| 5standard | 155 | Wen, Yuning (1537) | Won 2-0 | +171623 |
| 6standard | 92 | Kurakami, Shun (1643) | Lost 1-2 | -181605 |
| 7standard | 96 | Sasaki, Ryouichi (1515) | Lost 0-2 | -201585 |
| 8standard | 158 | Kawakami, Hiroshi (1511) | Lost 1-2 | -191566 |
| top | average opponent: 1521record: 4-4 | new rating: 1566 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 13 | Tezuka, Yuuki (1381) | Lost 1-2 | -211520 |
| 2sealed | 107 | Yii, Terh Kuen (1577) | Won 2-1 | +191539 |
| 3sealed | 51 | Kishida, Hirokazu (1469) | Won 2-0 | +161555 |
| 4sealed | 71 | Shoji, Kenta (1582) | Lost 1-2 | -171538 |
| 5sealed | 117 | Noji, Tomoyuki (1501) | Won 2-0 | +171555 |
| 6sealed | 91 | Watanabe, Hiroto (1615) | Won 2-1 | +191574 |
| 7sealed | 32 | Shouyama, Youhei (1585) | Won 2-0 | +181592 |
| 8sealed | 32 | Fujita, Tsuyoshi (1776) | Lost 0-2 | -141578 |
| top | average opponent: 1561record: 5-3 | new rating: 1578 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 126 | Takagi, Hitoshi (1567) | Lost 0-2 | -171483 |
| 2block | 172 | Kida, Takehito (1482) | Won 2-0 | +181501 |
| 3block | 137 | Nakano, Fumiki (1627) | Lost 1-2 | -161485 |
| 4block | 207 | Miyabe, Kouichi (1562) | Won 2-0 | +201505 |
| 5block | 134 | Hirokawa, Tatsuya (1505) | Won 2-1 | +181523 |
| 6block | 86 | Kawaji, Takaaki (1515) | Lost 1-2 | -181505 |
| 7block | 116 | Iwama, Gaku (1500) | Won 2-0 | +181523 |
| 8block | 100 | Tanaka, Yasunori (1514) | Won 2-0 | +181541 |
| top | average opponent: 1534record: 5-3 | new rating: 1541 | ||