Iwaki, Ryota
Current rating: 1640
Record: 40-37
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1616 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 9 | Kumakura, Takayuki (1431) | Won 2-0 | +151631 |
| 2pioneer | 53 | Oyama, Takafumi (1540) | Won 2-0 | +161647 |
| 3pioneer | 24 | Chiku, Kotaro (1542) | Won 2-1 | +171664 |
| 4pioneer | 2 | Kawata, Kazuki (1544) | Won 2-0 | +151679 |
| 5pioneer | 4 | Nomiya, Yohei (1631) | Lost 1-2 | -191660 |
| 6pioneer | 9 | kamezaki, sho (1545) | Lost 1-2 | -201640 |
| 7pioneer | 16 | Suzuki, Fumito (1575) | Won 2-1 | +171657 |
| 8pioneer | 20 | Mori, Noriyuki (1788) | Lost 0-2 | -151642 |
| 9pioneer | 20 | Nakamura, Koki (1515) | Won 2-0 | +151657 |
| 10pioneer | 14 | Ishibashi, Yukinori (1609) | Lost 0-2 | -191638 |
| 11pioneer | 24 | Nishiura, Ryosuke (1689) | Lost 0-2 | -171621 |
| 12pioneer | 25 | Fukudome, Yuu (1672) | Won 2-1 | +191640 |
| top | average opponent: 1590record: 7-5 | new rating: 1640 | ||
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1549 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 270 | Tsuzaki, Akira (1585) | Won 2-0 | +181567 |
| 4pioneer | 41 | Uzuki, Yushi (1489) | Won 2-1 | +171584 |
| 5pioneer | 22 | Oda, Ryota (1573) | Won 2-1 | +181602 |
| 6pioneer | 23 | Yanase, Kaname (1787) | Won 2-1 | +211623 |
| 7pioneer | 8 | Yoshizawa, Kaoru (1505) | Won 2-1 | +161639 |
| 8pioneer | 6 | Yashiro, Kazuki (1847) | Lost 0-2 | -141625 |
| 9pioneer | 45 | Tsubouchi, Tomoya (1965) | Lost 1-2 | -121613 |
| 10pioneer | 94 | Oginuma, Kiichi (1623) | Won 2-1 | +181631 |
| 11pioneer | 38 | Canonica, Kevin (1823) | Lost 0-2 | -151616 |
| 12pioneer | 73 | Miyata, Yuuya (1684) | Lost 1-2 | -171599 |
| 13pioneer | 96 | Saito, Tomoya (1658) | Lost 0-2 | -171582 |
| 14pioneer | 104 | Kamiya, Kazuhiro (1520) | Won 2-1 | +171599 |
| 15pioneer | 81 | Okabe, Kiyotaka (1552) | Won 2-0 | +171616 |
| top | average opponent: 1662record: 8-5 | new rating: 1616 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 373 | Suzuki, Masahiro 890 (1525) | Lost 0-2 | -201584 |
| 4standard | 393 | Fukudome, Yuu (1677) | Lost 1-2 | -161568 |
| 5standard | 620 | Uno, Yuta (1496) | Lost 1-2 | -191549 |
| top | average opponent: 1566record: 0-3 | new rating: 1549 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 453 | Nagao, Kengo (1963) | Won 2-0 | +261538 |
| 4sealed | 112 | Maeba, Hideaki (1920) | Won 2-1 | +241562 |
| 5sealed | 15 | Kihara, Ryou (1683) | Won 2-0 | +211583 |
| 6sealed | 1 | Terasawa, Kazuya (1874) | Lost 0-2 | -131570 |
| 7sealed | 81 | Suzuki, Ryo 0608 (1577) | Lost 1-2 | -181552 |
| 8sealed | 316 | Ikeuchi, Ryota (1548) | Won 2-1 | +181570 |
| 9sealed | 157 | Ikeda, Tsuyoshi (1643) | Lost 0-2 | -171553 |
| 10draft | 40 | Kamizono, Naoki (1821) | Won 2-1 | +231576 |
| 11draft | 158 | Kawabata, Yuji (1709) | Lost 0-2 | -161560 |
| 12draft | 168 | Muto, Shogo (1575) | Won 2-0 | +191579 |
| 13draft | 186 | Odagiri, Mato (1634) | Lost 0-2 | -171562 |
| 14draft | 154 | Yu, Hanyang (1746) | Won 2-1 | +211583 |
| 15draft | 60 | Morita, Akira (1733) | Won 2-1 | +211604 |
| top | average opponent: 1725record: 8-5 | new rating: 1604 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1418 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 349 | Maki, Hidekazu (1696) | Won 2-1 | +231441 |
| 4modern | 198 | Moriyama, Masahide (1764) | Lost 1-2 | -121429 |
| 5modern | 225 | Yasui, Shigeto (1649) | Won 2-1 | +221451 |
| 6modern | 323 | Takeda, Takashi (1582) | Won 2-1 | +201471 |
| 7modern | 78 | Muraoka, Hideaki (1501) | Won 2-1 | +191490 |
| 8modern | 80 | Yamamura, Toshiki (1612) | Lost 0-2 | -161474 |
| 9modern | 207 | Mialaret, Gary (1788) | Won 2-0 | +241498 |
| 10modern | 107 | Ogawa, Shota (1703) | Lost 0-2 | -151483 |
| 11modern | 111 | Zhu, David (1698) | Lost 0-2 | -141469 |
| 12modern | 202 | Lu, Shaoan (1482) | Won 2-0 | +181487 |
| 13modern | 160 | Ueda, Ryo (1665) | Won 2-0 | +221509 |
| 14modern | 121 | Hashizume, Yuuya (1572) | Lost 1-2 | -171492 |
| 15modern | 109 | Kobayashi, Tetsuro (1615) | Won 2-1 | +201512 |
| top | average opponent: 1640record: 8-5 | new rating: 1512 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 106 | Murayama, Kyohei (1513) | Lost 0-2 | -171451 |
| 3standard | 652 | Oohara, Yuuichi (1502) | Lost 0-2 | -181433 |
| 4standard | 841 | Yasuda, Hiroki (1599) | Lost 1-2 | -151418 |
| top | average opponent: 1538record: 0-3 | new rating: 1418 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 554 | Matsui, Tatsuyoshi (1526) | Lost 0-2 | -171468 |
| top | record: 0-1 | new rating: 1468 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 8 | Touma, Takahiro (1698) | Won 2-0 | +211523 |
| 3sealed | 63 | Ohori, Akihito (1340) | Lost 1-2 | -211502 |
| 4sealed | 512 | Kusunoki, Yuki (1650) | Lost 0-2 | -151487 |
| 5sealed | 543 | Takeuchi, Shuuji (1484) | Lost 1-2 | -181469 |
| 6sealed | 832 | Fukutani, Mitumasa (1366) | Won 2-0 | +161485 |
| top | average opponent: 1508record: 2-3 | new rating: 1485 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 191 | Takahashi, Kazuhiro (1496) | Won 2-0 | +171534 |
| 2standard | 163 | Fukui, Shunsuke (1813) | Won 2-0 | +231557 |
| 3standard | 29 | Kikuchi, Kouhei (1605) | Lost 1-2 | -171540 |
| 4standard | 779 | Yamano, Tatsuto (1265) | Won 2-0 | +131553 |
| 5standard | 493 | Hirayama, Atsushi (1760) | Lost 1-2 | -141539 |
| 6standard | 692 | Lin, Chi Kuan (1528) | Lost 1-2 | -181521 |
| 7standard | 801 | Hato, Ryo (1469) | Lost 1-2 | -191502 |
| top | average opponent: 1562record: 3-4 | new rating: 1502 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 108 | Mikami, Yu (1500) | Won 2-0 | +181518 |
| 2sealed | 104 | Kim, Yonghee (1499) | Lost 0-2 | -181500 |
| 3sealed | 483 | Matsuno, Yuuichi (1498) | Won 2-0 | +181518 |
| 4sealed | 296 | Nakamura, Taiki9361 (1518) | Lost 1-2 | -181500 |
| 5sealed | 353 | Watanabe, Tomonari (1469) | Won 2-0 | +171517 |
| 6sealed | 257 | Iwasawa, Shun (1523) | Won 2-1 | +181535 |
| 7sealed | 170 | Ito, Masato2397 (1517) | Lost 0-2 | -181517 |
| top | average opponent: 1503record: 4-3 | new rating: 1517 | ||