Ikeyama, Kei
Current rating: 1511
Record: 30-29-2
| Grand Prix Yokohama 2019 (modern) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 27 | Miura, Taku (1463) | Lost 0-2 | -181451 |
| 2modern | 930 | Nakayama, Kenichi (1444) | Won 2-0 | +181469 |
| 3modern | 931 | Ikoma, Toshio (1433) | Won 2-0 | +171486 |
| 4modern | 562 | Nuruki, Hiroaki (1922) | Won 2-1 | +261512 |
| 5modern | 210 | Fukunaga, Keisuke (1642) | Lost 1-2 | -161496 |
| 6modern | 556 | Kamishiro, Issey (1497) | Lost 0-2 | -181478 |
| 7modern | 722 | Goto, Kosuke (1369) | Won 2-1 | +161494 |
| 8modern | 426 | Tsujii, Shoichi (1441) | Won 2-0 | +171511 |
| top | average opponent: 1526record: 5-3 | new rating: 1511 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 251 | Banzui, Daisuke (1500) | Won 2-0 | +181478 |
| 2sealed | 459 | Ogawa, Takumi (1532) | Lost 0-2 | -171461 |
| 3sealed | 642 | Kasuga, Koki (1462) | Won 2-1 | +181479 |
| 4sealed | 645 | Kanegawa, Toshiya (1857) | Lost 0-2 | -111468 |
| 5sealed | 553 | Furusawa, Tsukasa (1487) | Won 2-1 | +181486 |
| 6sealed | 545 | Kimura, Shoji (1522) | Lost 1-2 | -171469 |
| top | average opponent: 1560record: 3-3 | new rating: 1469 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 206 | Kouta, Hayakawa (1515) | Lost 1-2 | -181522 |
| 3modern | 770 | Otsuka, Yasumasa (1412) | Lost 0-2 | -201502 |
| 4modern | 1166 | Sato, Ryoji (1463) | Lost 0-2 | -191483 |
| 5modern | 1129 | Akama, Takaharu (1427) | Won 2-0 | +171500 |
| 6modern | 1013 | Huck, David (1529) | Lost 1-2 | -181482 |
| 7modern | 1064 | Hayano, Satosi (1465) | Won 2-0 | +181500 |
| 8modern | 846 | Takata, Takumi (1374) | Lost 1-2 | -201480 |
| 9modern | 790 | Mori, Takahiro (1362) | Lost 1-2 | -201460 |
| top | average opponent: 1443record: 2-6 | new rating: 1460 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 13 | Kubo, Naoya (1518) | Won 2-0 | +181556 |
| 3standard | 530 | Endo, Natsumi (1590) | Won 2-0 | +191575 |
| 4standard | 82 | Yoshizawa, Kaoru (1507) | Lost 0-2 | -201555 |
| 5standard | 585 | Ding, Yi (1673) | Won 2-0 | +211576 |
| 6standard | 225 | Iwase, Akira (1696) | Lost 1-2 | -161560 |
| 7standard | 427 | Yamada, Hiroki (1647) | Lost 0-2 | -171543 |
| 8standard | 634 | Yanagawa, Yuuki (1408) | Lost 1-2 | -201523 |
| 9standard | 696 | Ota, Ryunosuke (1480) | Won 2-0 | +171540 |
| top | average opponent: 1565record: 4-4 | new rating: 1540 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 294 | Okamoto, Jin (1769) | Lost 0-2 | -141564 |
| 3legacy | 799 | Ryouta, Sakurai (1499) | Won 2-0 | +171581 |
| 4legacy | 432 | Kawakami, Takehito (1620) | Lost 0-2 | -181563 |
| 5legacy | 787 | Nishimura, Koichi (1425) | Lost 1-2 | -201543 |
| 6legacy | 836 | Hamayasu, Ryo (1486) | Lost 0-2 | -191524 |
| 7legacy | 955 | Sitkowski, Mario (1465) | Won 2-1 | +171541 |
| 8legacy | 718 | Kasai, Masafumi (1478) | Won 2-1 | +171558 |
| 9legacy | 618 | Tsuruta, Takurou (1495) | Lost 1-2 | -201538 |
| top | average opponent: 1530record: 3-5 | new rating: 1538 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 284 | Inoue, Yuusuke (1682) | Won 2-1 | +201584 |
| 2standard | 300 | Maruyama, Yuichiro (1601) | Won 2-0 | +191603 |
| 3standard | 726 | Noguchi, Takeshi (1560) | Lost 1-2 | -191584 |
| 4standard | 816 | Yamamoto, Keiichi (1595) | Won 2-0 | +181602 |
| 5standard | 353 | Ito, Takuto (1510) | Lost 1-2 | -201582 |
| 6standard | 527 | Naito, Yuuki (1406) | Won 2-0 | +151597 |
| 7standard | 544 | Shibata, Yuki (1521) | Lost 0-2 | -191578 |
| 8standard | 657 | Yamaguchi, Takumi (1572) | Lost 1-2 | -181560 |
| 9standard | 711 | Takahashi, Kei (1588) | Won 2-1 | +181578 |
| top | average opponent: 1560record: 5-4 | new rating: 1578 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 283 | Hino, Takahiro (1500) | Lost 0-2 | -201572 |
| 2sealed | 466 | Sakurai, Atsunori (1482) | Won 2-0 | +161588 |
| 3sealed | 445 | Okuda, Isao (1483) | Won 2-0 | +161604 |
| 4sealed | 206 | U, Kashin (1442) | Lost 0-2 | -211583 |
| 5sealed | 270 | Morimoto, Takeshi (1518) | Lost 1-2 | -191564 |
| top | average opponent: 1485record: 2-3 | new rating: 1564 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 234 | Watanabe, Yuuichi (1455) | Won 2-0 | +171517 |
| 2modern | 200 | Kabashima, Takuya (1489) | Won 2-0 | +181535 |
| 3modern | 39 | Furukawa, Kazuya (1646) | Won 2-0 | +201555 |
| 4modern | 98 | Yoshii, Takayuki (1536) | Lost 1-2 | -191536 |
| 5modern | 191 | Hamaguchi, Masakuni (1489) | Won 2-0 | +171553 |
| 6modern | 142 | Tang, Kenneth (1468) | Won 2-1 | +171570 |
| 7modern | 72 | Higuchi, Akashi (1717) | Won 2-0 | +211591 |
| 8modern | 84 | Fujioka, Naoya (1593) | Draw 1-1 | 01591 |
| 9modern | 80 | Fuchita, Shouhei (1640) | Draw 1-1 | +11592 |
| top | average opponent: 1559record: 6-1-2 | new rating: 1592 | ||