Obata, Ryoichi
Current rating: 1544
Record: 9-7
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 940 | Succari, Manuel (1518) | Lost 1-2 | -191522 |
| 2standard | 1144 | Tateno, Souhei (1483) | Won 2-1 | +181540 |
| 3standard | 1005 | Kasai, Takahide (1411) | Won 2-1 | +151555 |
| 4standard | 916 | Arita, Ryuichi (1726) | Lost 0-2 | -151540 |
| 5standard | 809 | Demura, Mitsuhiro (1508) | Won 2-1 | +181558 |
| 6standard | 725 | Sugimoto, Taiki (1516) | Won 2-1 | +171575 |
| 7standard | 640 | Nose, Koji (1849) | Lost 0-2 | -131562 |
| 8standard | 702 | Matsuda, Yuuichirou (1571) | Lost 1-2 | -181544 |
| average opponent: 1573record: 4-4 | new rating: 1544 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1212 | Suzuki, Fumito (1638) | Won 2-0 | +211521 |
| 2sealed | 1093 | Uno, Eigo (1517) | Won 2-1 | +171538 |
| 3sealed | 833 | Kato, Hidekazu (1368) | Won 2-0 | +151553 |
| 4sealed | 870 | Ishiguro, Youhei (1694) | Lost 1-2 | -151538 |
| 5sealed | 903 | Tokita, Toshimi (1453) | Won 2-0 | +161554 |
| 6sealed | 896 | Inoue, Toru (1820) | Lost 0-2 | -131541 |
| 7sealed | 900 | Oikawa, Takaaki (1540) | Won 2-1 | +181559 |
| 8sealed | 936 | Takahashi, Masakazu (1546) | Lost 0-2 | -181541 |
| average opponent: 1572record: 5-3 | new rating: 1541 | |||