Ogata, Kai
Current rating: 1522
Record: 23-23-1
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 30 | Mochizuki, Mikito (1518) | Won 2-1 | +181559 |
| 3standard | 356 | Kounosu, Hiroaki (1186) | Won 2-0 | +111570 |
| 4standard | 148 | Nagao, Takuya (1415) | Won 2-0 | +161586 |
| 5standard | 23 | Takesue, Chikara (1758) | Won 2-1 | +211607 |
| 6standard | 37 | Sun, Bolong (1500) | Won 2-1 | +161623 |
| 7standard | 9 | Ozawa, Takeshi (2068) | Lost 1-2 | -111612 |
| 8standard | 28 | Takahashi, Masamichi (1598) | Lost 1-2 | -181594 |
| 9standard | 161 | Yoshizawa, Kaoru (1561) | Lost 1-2 | -191575 |
| 10standard | 197 | Miyake, Hideyuki (1645) | Lost 0-2 | -161559 |
| 11standard | 169 | Sasaki, Toshiya (1540) | Lost 1-2 | -191540 |
| 12standard | 181 | Ikeda, Takeshi (1493) | Lost 1-2 | -181522 |
| top | average opponent: 1571record: 5-6 | new rating: 1522 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 214 | Miller, Alexander (1473) | Lost 0-2 | -191545 |
| 3standard | 682 | Song, De (1489) | Lost 0-2 | -191526 |
| 4standard | 1023 | Nomura, Takashi (1550) | Lost 1-2 | -181508 |
| 5standard | 983 | Murase, Takahiro (1318) | Won 2-0 | +151523 |
| 6standard | 824 | Shiraishi, Masaharu (1649) | Won 2-0 | +201543 |
| 7standard | 682 | Takada, Narumasa (1527) | Lost 1-2 | -181525 |
| 8standard | 643 | Narushima, Yuusuke (1450) | Won 2-0 | +161541 |
| top | average opponent: 1494record: 3-4 | new rating: 1541 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 452 | Kaneko, Masayuki3656 (1575) | Lost 1-2 | -171517 |
| 3sealed | 852 | Miki, Takatoshi (1378) | Won 2-0 | +151532 |
| 4sealed | 579 | Sakuma, Toshimitsu (1677) | Won 2-0 | +211553 |
| 5sealed | 515 | Moriya, Ryo (1816) | Lost 0-2 | -131540 |
| 6sealed | 615 | Watanabe, Takanori (1680) | Won 2-0 | +201560 |
| 7sealed | 207 | Hitomi, Masaaki (1670) | Won 2-0 | +201580 |
| 8sealed | 299 | Hirokawa, Tatsuya 1725 (1557) | Won 2-0 | +181598 |
| 9sealed | 214 | Ikeda, Takahiro (1738) | Won 2-1 | +201618 |
| 10draft | 628 | Karasawa, Ryuichi (1679) | Lost 0-2 | -171601 |
| 11draft | 622 | Yamamura, Yuma (1685) | Lost 0-2 | -161585 |
| 12draft | 625 | Hinohara, Toyokazu (1439) | Lost 0-2 | -211564 |
| top | average opponent: 1627record: 6-5 | new rating: 1564 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 244 | Komiya, Yuki (1530) | Lost 1-2 | -171446 |
| 4standard | 411 | Kida, Masashi (1486) | Won 2-1 | +191465 |
| 5standard | 517 | Amada, Michio (1539) | Won 2-0 | +191484 |
| 6standard | 264 | Sekikawa, Tsubasa (1560) | Lost 0-2 | -171467 |
| 7standard | 529 | Hirase, Gun (1514) | Won 2-1 | +191486 |
| 8standard | 204 | Ishikawa, Takuma (1381) | Won 2-1 | +161502 |
| 9standard | 101 | Itou, Motoaki (1918) | Lost 0-2 | -111491 |
| 10standard | 319 | Shinkai, Yasuhiro (1537) | Lost 1-2 | -171474 |
| 11standard | 325 | Watanabe, Shogo7192 (1513) | Won 2-0 | +191493 |
| 12standard | 232 | Yazu, Yasuhiro (1524) | Won 2-1 | +191512 |
| 13standard | 224 | Shiura, Takefumi (1485) | Lost 1-2 | -191493 |
| 14standard | 226 | Kawai, Yusuke (1558) | Won 2-0 | +191512 |
| 15standard | 190 | Hosoi, Ippei (1732) | Won 2-1 | +221534 |
| top | average opponent: 1560record: 8-5 | new rating: 1534 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 606 | Masuda, Ryou (1578) | Lost 0-2 | -171483 |
| 2standard | 1195 | Karita, Toyohisa (1469) | Lost 1-2 | -181465 |
| 3standard | 1581 | Suzuki, Tatsuya (1388) | Won 2-0 | +171482 |
| 4standard | 1215 | Hukuoka, Yutaka (1477) | Draw 0-0 | 01482 |
| 5standard | 1290 | Nakamoto, Naoki (1426) | Lost 0-2 | -191463 |
| top | average opponent: 1467record: 1-3-1 | new rating: 1463 | ||