Ishikawa, Hikaru
Current rating: 1545
Record: 29-30-2
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 11 | Egeyama, Tomoki (1531) | Won 2-0 | +181551 |
| 2pioneer | 20 | Kato, Hiromu (1527) | Won 2-0 | +171568 |
| 3pioneer | 15 | Hosokawa, Yuya (1946) | Lost 0-2 | -111557 |
| 4pioneer | 18 | Oohashi, Yoshihiro (1508) | Lost 1-2 | -191538 |
| 5pioneer | 72 | Yamane, Naoto (1753) | Won 2-1 | +221560 |
| 6pioneer | 36 | Nakamura, Junpei (1677) | Won 2-0 | +201580 |
| 7pioneer | 35 | CHINEN, KOUSUKE (1556) | Won 2-0 | +181598 |
| 8pioneer | 13 | Sakai, Tatsuya (1706) | Won 2-1 | +201618 |
| 9pioneer | 12 | Shimizu, Naoto (1591) | Lost 1-2 | -191599 |
| 10pioneer | 20 | Maruyama, Yuichiro (1582) | Lost 1-2 | -181581 |
| 11pioneer | 23 | Murayama, Kyohei (1588) | Lost 1-2 | -181563 |
| 12pioneer | 23 | Kobayashi, Akira (1563) | Lost 0-2 | -181545 |
| top | average opponent: 1627record: 6-6 | new rating: 1545 | ||
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 39 | Kamata, Kazuhiro (1802) | Won 2-0 | +221564 |
| 2pioneer | 22 | Kawata, Kazuki (1499) | Lost 1-2 | -191545 |
| 3pioneer | 52 | Yoshizawa, Kohei (1569) | Won 2-1 | +191564 |
| 4pioneer | 35 | Hosokawa, Yuya (1948) | Lost 0-2 | -121552 |
| 5pioneer | 77 | Fujimoto, Tomoya (1496) | Lost 1-2 | -191533 |
| 6pioneer | 71 | Leem, Chaiwon (1488) | Lost 0-2 | -191514 |
| 7pioneer | 69 | Asano, Tatsuro (1536) | Won 2-1 | +191533 |
| top | average opponent: 1620record: 3-4 | new rating: 1533 | ||
| Regional Championships Aichi 2022 (pioneer) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 85 | Cho, Jae Seok (1754) | Won 2-1 | +221543 |
| 2pioneer | 9 | Okamura, Marei (1575) | Won 2-1 | +191562 |
| 3pioneer | 6 | Hirayama, Rei (1878) | Lost 1-2 | -131549 |
| 4pioneer | 28 | Suzuki, Motohiro (1527) | Won 2-0 | +181567 |
| 5pioneer | 18 | Matsumoto, Tomohiro (1590) | Won 2-1 | +181585 |
| 6pioneer | 10 | Kumagai, Riku (2098) | Lost 0-2 | -91576 |
| 7pioneer | 12 | Takeo, Kai (1594) | Won 2-0 | +181594 |
| 8pioneer | 19 | Kamo, Riki (1770) | Lost 0-2 | -141580 |
| 9pioneer | 17 | Ida, Yuuji (1536) | Lost 0-2 | -191561 |
| 10pioneer | 29 | Yamashita, Yoshiki (1527) | Draw 1-1 | -11560 |
| 11pioneer | 26 | Kondo, Koki (1537) | Lost 1-2 | -181542 |
| top | average opponent: 1671record: 5-5-1 | new rating: 1542 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 32 | Ichinose, Yasunori (1500) | Won 2-0 | +181503 |
| 2standard | 91 | Sakuma, Yuto (1523) | Won 2-0 | +181521 |
| 3standard | 304 | Wu, Chia-Ju (1557) | Won 2-0 | +191540 |
| 4standard | 229 | Kanekiyo, Ryusuke (1252) | Lost 0-2 | -231517 |
| 5standard | 200 | Kihara, Ryou (1650) | Won 2-0 | +201537 |
| 6standard | 83 | Hirose, Yoshiyuki (1627) | Lost 1-2 | -161521 |
| top | average opponent: 1518record: 4-2 | new rating: 1521 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 62 | Ono, Daisuke (1312) | Lost 0-2 | -221481 |
| 2modern | 783 | Matsuda, Kenta (1388) | Won 2-1 | +171498 |
| 3modern | 795 | Cheng, Ting Hin (1612) | Lost 0-2 | -161482 |
| 4modern | 1159 | Kawata, Kazuki (1516) | Won 2-1 | +181500 |
| 5modern | 987 | Katou, Ryou (1500) | Won 2-1 | +181518 |
| 6modern | 834 | Nagao, Yasutaka (1788) | Lost 1-2 | -131505 |
| 7modern | 708 | Shirakihara, Ryuuichi (1374) | Lost 1-2 | -201485 |
| top | average opponent: 1499record: 3-4 | new rating: 1485 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 23 | Saitou, Katsutoshi (1507) | Won 2-0 | +191477 |
| 4standard | 170 | Matsuo, Shuto (1439) | Won 2-0 | +171494 |
| 5standard | 33 | Ishiai, Yoshinosuke (1578) | Draw 1-1 | +21496 |
| 6standard | 96 | Hiroi, Genki (1498) | Lost 1-2 | -181478 |
| 7standard | 303 | Kanegawa, Toshiya (1898) | Lost 0-2 | -111467 |
| 8standard | 884 | Okada, Shinichi (1516) | Won 2-0 | +191486 |
| 9standard | 353 | Hung, Hsun Hao (1711) | Won 2-1 | +221508 |
| 10standard | 218 | Sorakup, Aekarash (1935) | Lost 0-2 | -111497 |
| 11standard | 335 | Ishimaru, Ken (1799) | Won 2-1 | +231520 |
| 12standard | 221 | Nakamura, Nakamurayusuke (1546) | Lost 0-2 | -171503 |
| top | average opponent: 1643record: 5-4-1 | new rating: 1503 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 637 | Ochi, Takushi (1411) | Lost 1-2 | -201480 |
| 2sealed | 756 | Nakadai, Keisuke (1482) | Lost 1-2 | -181462 |
| 3sealed | 1244 | Hirayama, Teruaki (1517) | Won 2-0 | +191481 |
| 4sealed | 884 | Mitsuhashi, Ryota (1482) | Lost 0-2 | -181463 |
| 5sealed | 1103 | Kawashima, Fumihiro (1370) | Won 2-1 | +171480 |
| 6sealed | 908 | Kotera, Tetsuo (1359) | Won 2-1 | +161496 |
| 7sealed | 599 | Kondo, Kazuya (1424) | Lost 0-2 | -201476 |
| 8sealed | 789 | Hariu, Daichi (1452) | Lost 0-2 | -181458 |
| top | average opponent: 1437record: 3-5 | new rating: 1458 | ||