Ohtsuka, Fukuo
Current rating: 1718 (#5397)
Record: 28-16-1
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1601 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 191 | Hayakawa, Naoto (1504) | Won 2-1 | +161617 |
| 2sealed | 455 | Kawaguchi, Kyouhei (1839) | Lost 0-2 | -141603 |
| 3sealed | 825 | Oono, Takahiro (1497) | Won 2-1 | +171620 |
| 4sealed | 650 | Mitsumoto, Takeo (1522) | Won 2-0 | +161636 |
| 5sealed | 403 | Moriya, Daisuke (1580) | Lost 0-2 | -191617 |
| 6sealed | 401 | Itaya, Tomohisa (1470) | Won 2-0 | +151632 |
| 7sealed | 293 | Kurita, Yudai (1674) | Won 2-0 | +191651 |
| 8sealed | 336 | Itou, Masahiro1014 (1390) | Won 2-0 | +131664 |
| 9sealed | 196 | Kimura, Minori (1475) | Won 2-1 | +151679 |
| 10draft | 126 | Watanabe, Yuta9087 (1616) | Lost 1-2 | -191660 |
| 11draft | 82 | Toda, Shinya (1574) | Won 2-0 | +161676 |
| 12draft | 34 | Nishida, Makoto (1763) | Won 2-1 | +201696 |
| 13draft | 116 | Maeda, Hiroki (1576) | Won 2-0 | +151711 |
| 14draft | 100 | Kawakami, Takehito (1857) | Lost 0-2 | -151696 |
| 15draft | 56 | Saeki, Katsuhisa (1932) | Won 2-0 | +221718 |
| top | average opponent: 1618record: 11-4 | new rating: 1718 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 698 | Aoki, Yusuke (1497) | Won 2-0 | +181525 |
| 2modern | 37 | Matoba, Kosuke (1513) | Won 2-1 | +181543 |
| 3modern | 225 | Nagai, Satoshi (1375) | Lost 1-2 | -211522 |
| 4modern | 417 | Kanamaru, Tomohumi (1512) | Lost 0-2 | -181504 |
| 5modern | 682 | Hosokawa, Takahiro (1297) | Won 2-1 | +141518 |
| 6modern | 371 | Yin, Hongrui (1616) | Won 2-1 | +201538 |
| 7modern | 221 | Aoyagi, Motohiko (1666) | Won 2-0 | +201558 |
| 8modern | 128 | Hiruta, Noriaki (1592) | Won 2-0 | +191577 |
| 9modern | 212 | Tsukada, Akihisa (1566) | Lost 0-2 | -181559 |
| 10modern | 188 | Naitou, Yohei (1559) | Lost 1-2 | -181541 |
| 11modern | 218 | Yoneyama, Hiroshi (1544) | Won 2-0 | +181559 |
| 12modern | 195 | Fukutani, Yuto (1631) | Won 2-1 | +191578 |
| 13modern | 122 | Sato, Taichi (1532) | Lost 0-2 | -191559 |
| 14modern | 157 | Kato, Kensuke (1972) | Won 2-1 | +251584 |
| 15modern | 144 | Kasagawa, Yosuke (1528) | Won 2-0 | +171601 |
| top | average opponent: 1560record: 10-5 | new rating: 1601 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 440 | Odagiri, Yousuke (1491) | Won 2-0 | +181500 |
| 2sealed | 588 | Murakami, Yuki (1768) | Lost 1-2 | -131487 |
| 3sealed | 612 | Ueda, Kazuki7129 (1463) | Won 2-1 | +181505 |
| 4sealed | 498 | Asakura, Yoshitomo (1584) | Won 2-0 | +191524 |
| 5sealed | 340 | Kitagawa, Tomohiro (1353) | Won 2-1 | +151539 |
| 6sealed | 89 | Honda, Soma (1552) | Lost 1-2 | -181521 |
| 7sealed | 208 | Kabashima, Takuya (1584) | Draw 1-1 | +11522 |
| 8sealed | 360 | Gotou, Hiroaki (1689) | Lost 0-2 | -151507 |
| top | average opponent: 1561record: 4-3-1 | new rating: 1507 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 413 | Nanba, Yoshinori (1500) | Lost 1-2 | -181482 |
| 2standard | 1186 | Chou, Gyou (1527) | Lost 0-2 | -171465 |
| 3standard | 1603 | Takada, Koutarou (1485) | Lost 1-2 | -181447 |
| 4standard | 1588 | Rodgers, Alex (1395) | Won 2-1 | +171464 |
| 5standard | 1383 | Diallo, Jakob (1368) | Won 2-1 | +161480 |
| 6standard | 1210 | Yamamoto, Kazuhide (1433) | Won 2-1 | +181498 |
| 7standard | 1015 | Katsubayashi, Nobuhisa (1642) | Lost 0-2 | -161482 |
| top | average opponent: 1479record: 3-4 | new rating: 1482 | ||