Ookubo, Sigetaka
Current rating: 1488
Record: 7-7-4
| Grand Prix Chiba 2016 (legacy) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 528 | Bi, Mingjie (1496) | Lost 0-2 | -181513 |
| 2legacy | 749 | Matsumoto, Kento (1483) | Lost 1-2 | -191494 |
| 3legacy | 1093 | Suzuki, Kyou (1723) | Lost 0-2 | -141480 |
| 4legacy | 1107 | Kurosawa, Kosuke (1448) | Won 2-0 | +181498 |
| 5legacy | 1070 | Yanagi, Yuichi (1425) | Lost 0-2 | -201478 |
| 6legacy | 1048 | Takeshita, Shuhei (1449) | Draw 1-1 | 01478 |
| 7legacy | 968 | Komizo, Kouichi (1211) | Won 2-0 | +131491 |
| 8legacy | 834 | Yusuke, Takeuchi (1447) | Won 2-0 | +171508 |
| 9legacy | 683 | Mizutani, Yoshinobu (1390) | Lost 1-2 | -201488 |
| average opponent: 1452record: 3-5-1 | new rating: 1488 | |||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 228 | Nagao, Akio (1451) | Lost 0-2 | -191481 |
| 2legacy | 308 | Tanaka, Sou (1431) | Lost 1-2 | -191462 |
| 3legacy | 444 | Fujiwara, Hiroshi (1450) | Draw 1-1 | 01462 |
| 4legacy | 431 | Kurikawa, Hideyuki (1396) | Won 2-0 | +171479 |
| 5legacy | 370 | Fujiwara, Kazuto (1330) | Won 2-0 | +151494 |
| 6legacy | 287 | Ota, Kan (1498) | Won 2-0 | +181512 |
| 7legacy | 209 | Knellwolf, Martin (1681) | Draw 1-1 | +31515 |
| 8legacy | 205 | Terada, Tadayoshi (1425) | Draw 1-1 | -11514 |
| 9legacy | 176 | Noie, Kenji (1502) | Won 2-0 | +171531 |
| average opponent: 1463record: 4-2-3 | new rating: 1531 | |||