Oka, Tetsuya
Current rating: 1521
Record: 4-3
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 241 | Ookubo, Shun (1540) | Won 2-0 | +191519 |
| 2modern | 224 | Wada, Yuusaku (1519) | Lost 0-2 | -181501 |
| 3modern | 433 | Suzuki, Tomofumi (1498) | Won 2-0 | +181519 |
| 4modern | 277 | Takahashi, Tsutomu (1489) | Won 2-0 | +171536 |
| 5modern | 189 | Hashiguchi, Kentarou (1535) | Won 2-1 | +181554 |
| 6modern | 134 | Hagiwara, Genta (1734) | Lost 0-2 | -151539 |
| 7modern | 212 | Onodera, Ryusuke (1523) | Lost 0-2 | -181521 |
| average opponent: 1548record: 4-3 | new rating: 1521 | |||