Obara, Kentarou
Current rating: 1549
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1570 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 108 | Sano, Kouta (1409) | Lost 0-2 | -211549 |
| top | record: 0-1 | new rating: 1549 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 187 | Mitsuya, Kazuhiko (1803) | Lost 0-2 | -151595 |
| 3sealed | 364 | Sumitomo, Yusuke (1445) | Lost 1-2 | -201575 |
| 4sealed | 369 | Tachibana, Takahiro (1504) | Won 2-0 | +161591 |
| 5sealed | 280 | Toyota, Hiroki (1393) | Lost 0-2 | -211570 |
| top | average opponent: 1536record: 1-3 | new rating: 1570 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 173 | Shiota, Fumihiko (1654) | Won 2-1 | +211521 |
| 2extended | 88 | Kasahara, Yuuki (1576) | Won 2-0 | +191540 |
| 3extended | 75 | Murata, Shouta (1531) | Won 2-1 | +181558 |
| 4extended | 45 | Nishimoto, Kouhei (1554) | Lost 1-2 | -181540 |
| 5extended | 143 | Uesugi, Fumiya (1543) | Won 2-1 | +181558 |
| 6extended | 90 | K., Yuuya (1503) | Won 2-0 | +171575 |
| 7extended | 34 | Y., Masayuki (1528) | Won 2-1 | +171592 |
| 8extended | 14 | Juumonji, Ryou (1707) | Won 2-0 | +201612 |
| 9extended | 11 | Okajima, Shougo (1547) | Won 2-1 | +171629 |
| 10extended | 4 | Juza, Martin (2032) | Lost 0-2 | -111618 |
| 11extended | 20 | Yasooka, Shota (1973) | Lost 0-2 | -121606 |
| 12extended | 40 | Yamashita, Hidetoshi (1767) | Won 2-1 | +211627 |
| 13extended | 25 | Tamada, Ryoichi (1747) | Lost 1-2 | -161611 |
| 14extended | 8 | Y., Shintarou (1602) | Won 2-0 | +181629 |
| 15extended | 16 | Furuta, Yoshifuyu (1574) | Lost 1-2 | -191610 |
| top | average opponent: 1656record: 10-5 | new rating: 1610 | ||