Osa, Yuma
Current rating: 1487
Record: 5-6
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 571 | Kawamata, Norio (1500) | Lost 0-2 | -191505 |
| 2legacy | 599 | Kodaira, Kazuto (1518) | Lost 0-2 | -181487 |
| 3legacy | 938 | Uehara, Shinya (1496) | Won 2-1 | +191506 |
| 4legacy | 873 | Izawa, Kagekatsu (1483) | Lost 1-2 | -191487 |
| average opponent: 1499record: 1-3 | new rating: 1487 | |||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 922 | Takeuchi, Shusuke (1468) | Won 2-0 | +171517 |
| 2modern | 810 | Kihara, Ryou (1793) | Won 2-0 | +231540 |
| 3modern | 792 | Ota, Youhei (1500) | Won 2-0 | +181558 |
| 4modern | 778 | Tan, Raymond (1827) | Lost 1-2 | -141544 |
| 5modern | 820 | Noguchi, Masami (1557) | Won 2-0 | +191563 |
| 6modern | 787 | Tanaka, Hayato (1535) | Lost 0-2 | -191544 |
| 7modern | 866 | Nishio, Yoshihiro (1406) | Lost 1-2 | -201524 |
| average opponent: 1584record: 4-3 | new rating: 1524 | |||