Oka, Kenji
Current rating: 1477
Record: 3-4
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 594 | Hoshi, Masaru (1464) | Won 2-0 | +171517 |
| 2standard | 549 | Ii, Takahiro (1518) | Lost 1-2 | -181499 |
| 3standard | 869 | Osio, Masaki (1500) | Lost 1-2 | -181481 |
| 4standard | 834 | Yoshimura, Asuka (1396) | Won 2-0 | +171498 |
| 5standard | 725 | Shishibori, Kohei (1432) | Lost 0-2 | -191479 |
| 6standard | 799 | Motoyama, Souichirou (1417) | Won 2-1 | +171496 |
| 7standard | 711 | Niikawa, Shouhei (1441) | Lost 1-2 | -191477 |
| average opponent: 1453record: 3-4 | new rating: 1477 | |||