Oshima, Takashi
Current rating: 1530
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 145 | Miyawaki, Yuto (1500) | Won 2-1 | +181522 |
| 2sealed | 376 | Shibata, Kosuke (1575) | Won 2-0 | +191541 |
| 3sealed | 3 | Yoshimura, Wataru (1573) | Won 2-0 | +181559 |
| 4sealed | 49 | Okada, Yoshikazu (1643) | Won 2-0 | +201579 |
| 5sealed | 146 | Akase, Kousuke (1500) | Lost 1-2 | -201559 |
| 6sealed | 226 | Yoon, Sang-Woong (1639) | Won 2-0 | +201579 |
| 7sealed | 192 | Sashida, Tomoro (1443) | Lost 0-2 | -211558 |
| 8sealed | 163 | Nam, Kyung-Min (1545) | Lost 1-2 | -181540 |
| 9sealed | 329 | Mori, Katsuhiro (1983) | Lost 1-2 | -101530 |
| top | average opponent: 1600record: 5-4 | new rating: 1530 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 51 | Yamashiro, Junji (1519) | Lost 0-2 | -181484 |
| 2standard | 616 | Hosoda, Shinya (1468) | Won 2-0 | +181502 |
| 3standard | 349 | Iwase, Akira (1530) | Won 2-1 | +181520 |
| 4standard | 333 | Honda, Takeshi (1429) | Won 2-1 | +171537 |
| 5standard | 163 | Ooneda, Yoshihiro (1549) | Won 2-0 | +181555 |
| 6standard | 176 | Sonobe, Keishi (1552) | Lost 0-2 | -181537 |
| 7standard | 168 | Shin, Cheol Min (1533) | Lost 1-2 | -181519 |
| 8standard | 273 | Kudo, Koichi (1687) | Lost 0-2 | -151504 |
| top | average opponent: 1533record: 4-4 | new rating: 1504 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 266 | Suzuki, Gou (1470) | Lost 1-2 | -191481 |
| 2modern | 435 | Miyashita, Kazuki (1568) | Won 2-1 | +201501 |
| 3modern | 474 | Okada, Keita (1478) | Lost 0-2 | -181483 |
| 4modern | 554 | Ishiguro, Masamitsu (1486) | Won 2-1 | +181501 |
| 5modern | 366 | Iwasawa, Fumiya (1499) | Won 2-0 | +181519 |
| 6modern | 274 | Yabuki, Shunichi (1581) | Lost 1-2 | -171502 |
| top | average opponent: 1514record: 3-3 | new rating: 1502 | ||