Ookata, Akihiro
Current rating: 1512
| Grand Prix Chiba 2016 (legacy) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 704 | Sato, Kenichiro (1532) | Lost 0-2 | -181517 |
| 2legacy | 684 | Kuriyama, Takuya (1512) | Lost 1-2 | -181499 |
| 3legacy | 1035 | Kameda, Yoshito (1462) | Won 2-1 | +171516 |
| 4legacy | 1003 | Oohara, Seiya (1483) | Lost 1-2 | -181498 |
| 5legacy | 1024 | Akiba, Takashi (1462) | Lost 0-2 | -191479 |
| 6legacy | 1058 | Nakahara, Yoshihiro (1394) | Won 2-1 | +171496 |
| 7legacy | 957 | Chiba, Shouhei (1425) | Won 2-0 | +161512 |
| top | average opponent: 1467record: 3-4 | new rating: 1512 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 270 | Deguchi, Koya (1442) | Won 2-0 | +171516 |
| 2sealed | 137 | Okino, Ryuu (1641) | Lost 0-2 | -161500 |
| 3sealed | 277 | Romling, Gaby (1500) | Draw 1-1 | 01500 |
| 4sealed | 344 | Shibuya, Ryosuke (1508) | Won 2-0 | +181518 |
| 5sealed | 228 | Takahashi, Kaita (1520) | Won 2-1 | +181536 |
| 6sealed | 146 | Saida, Kazuki (1488) | Won 2-0 | +171553 |
| 7sealed | 91 | Kitazawa, Kentarou (1553) | Lost 0-2 | -181535 |
| top | average opponent: 1522record: 4-2-1 | new rating: 1535 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 246 | Tsuchida, Shinnosuke (1552) | Won 2-1 | +191519 |
| 2sealed | 41 | Ogasawara, Nobuyuki (1516) | Won 2-1 | +181537 |
| 3sealed | 79 | Kondou, Shin (1536) | Lost 1-2 | -181519 |
| 4sealed | 190 | Kaneko, Tasuku (1519) | Lost 1-2 | -181501 |
| 5sealed | 374 | Minoshima, Takenori (1365) | Won 2-1 | +151516 |
| 6sealed | 294 | Mutou, Kazuki (1527) | Lost 0-2 | -171499 |
| top | average opponent: 1503record: 3-3 | new rating: 1499 | ||