Ookubo, Keisuke
Current rating: 1503
Record: 4-4
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 188 | Ito, Hayato (Mie) (1500) | Won 2-0 | +181518 |
| 2standard | 678 | Morita, Takanori (1511) | Won 2-1 | +181536 |
| 3standard | 677 | Mizumoto, Hirotaka (1536) | Won 2-0 | +181554 |
| 4standard | 107 | Indrakesuma, Taufik (1744) | Lost 0-2 | -151539 |
| 5standard | 630 | Yamamoto, Yuhei (1494) | Lost 1-2 | -191520 |
| 6standard | 851 | Tazawa, Kazuho (1497) | Won 2-1 | +181538 |
| 7standard | 471 | Tahara, Ippei (1537) | Lost 0-2 | -181520 |
| 8standard | 564 | Tsuruoka, Shouta (1574) | Lost 0-2 | -171503 |
| average opponent: 1549record: 4-4 | new rating: 1503 | |||