Oohusa, Ryohei
Current rating: 1457
Record: 17-21
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 171 | Zhao, Jianbo (1500) | Won 2-0 | +191473 |
| 2sealed | 282 | Mikami, Takaya (1475) | Lost 0-2 | -181455 |
| 3sealed | 921 | Kanazawa, Yuusuke (1441) | Lost 1-2 | -191436 |
| 4sealed | 922 | Yamada, Yuji (1451) | Won 2-1 | +191455 |
| 5sealed | 845 | Oikawa, Hiroaki (1518) | Won 2-0 | +191474 |
| 6sealed | 440 | Takatsuto, Ryou (1517) | Lost 0-2 | -171457 |
| top | average opponent: 1484record: 3-3 | new rating: 1457 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 38 | Shiozaki, Ryota (1467) | Lost 1-2 | -181492 |
| 2modern | 885 | Meng, Yuning (1483) | Lost 0-2 | -191473 |
| 3modern | 1082 | Suzuki, Yuga (1510) | Lost 1-2 | -171456 |
| 4modern | 1159 | Ikeuchi, Ryota (1443) | Lost 1-2 | -181438 |
| 5modern | 1115 | Nishioka, Daichi (1321) | Won 2-1 | +161454 |
| top | average opponent: 1445record: 1-4 | new rating: 1454 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 411 | Momiki, Hayami (1599) | Won 2-1 | +201495 |
| 2sealed | 414 | Nozaki, Taiki (1462) | Lost 0-2 | -191476 |
| 3sealed | 717 | Matsumoto, Naoya (1559) | Won 2-1 | +201496 |
| 4sealed | 766 | Kojima, Yoshifumi (1533) | Won 2-1 | +181514 |
| 5sealed | 389 | Elsik, Zac (1734) | Won 2-0 | +221536 |
| 6sealed | 218 | Oshikawa, Akira (1777) | Lost 1-2 | -131523 |
| 7sealed | 378 | Yamasaki, Takuya (1523) | Won 2-0 | +181541 |
| 8sealed | 185 | Ito, Hiromichi (1520) | Lost 1-2 | -191522 |
| 9sealed | 315 | Sugiyama, Taichiro (1503) | Won 2-1 | +181540 |
| 10draft | 231 | Omura, Hajime (1494) | Lost 0-2 | -191521 |
| 11draft | 322 | Yoshimura, Wataru (1489) | Lost 0-2 | -181503 |
| 12draft | 323 | Moriya, Erika (1618) | Won 2-0 | +201523 |
| 13draft | 156 | Matsumoto, Takashi (1516) | Won 2-1 | +171540 |
| 14draft | 136 | Yao, Shunsuke (1702) | Lost 0-2 | -151525 |
| 15draft | 107 | Ogawa, Satoshi (1693) | Lost 0-2 | -151510 |
| top | average opponent: 1581record: 8-7 | new rating: 1510 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 647 | Tsuchiya, Yoshihiro (1315) | Won 2-0 | +161462 |
| 2standard | 501 | Deguchi, Keizou (1577) | Won 2-0 | +201482 |
| 3standard | 402 | Suematsu, Takaaki (1872) | Lost 1-2 | -111471 |
| 4standard | 641 | Michibata, Tatsuya (1503) | Won 2-1 | +181489 |
| 5standard | 203 | Horie, Hiroshi (1535) | Lost 0-2 | -171472 |
| 6standard | 709 | Ooshima, Kunihiro (1518) | Lost 0-2 | -171455 |
| 7standard | 934 | Kotera, Tetsuo (1303) | Won 2-1 | +151470 |
| 8standard | 759 | Ogata, Syou (1670) | Lost 0-2 | -141456 |
| 9standard | 692 | Kusunoki, Yuki (1503) | Won 2-0 | +191475 |
| top | average opponent: 1533record: 5-4 | new rating: 1475 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 528 | Yamada, Tsutomu (1541) | Lost 0-2 | -171483 |
| 2sealed | 935 | Hashimoto, Ryunosuke (1446) | Lost 0-2 | -191464 |
| 3sealed | 1154 | Ikeda, Takahiro (1466) | Lost 0-2 | -181446 |
| top | average opponent: 1484record: 0-3 | new rating: 1446 | ||