Oikawa, Kouhei
Current rating: 1486
Record: 4-5-1
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 40 | Miyano, Shinichi (1614) | Lost 0-2 | -151485 |
| 2standard | 1161 | Katoh, Wataru (1451) | Draw 1-1 | -11484 |
| 3standard | 1392 | Shimono, Tetsuro (1620) | Lost 1-2 | -161468 |
| 4standard | 1536 | Akutagawa, Hiroyuki (1462) | Won 2-0 | +181486 |
| average opponent: 1537record: 1-2-1 | new rating: 1486 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 32 | Nishikawa, Shigeki (1332) | Won 2-0 | +151515 |
| 2sealed | 71 | Sakuraba, Ryouhei (1617) | Won 2-1 | +201535 |
| 3sealed | 155 | Nakata, Tatsuya (1576) | Won 2-1 | +191554 |
| 4sealed | 95 | Yamamoto, Keiichi (1571) | Lost 1-2 | -181536 |
| 5sealed | 197 | Yashiro, Kazuki (1574) | Lost 1-2 | -171519 |
| 6sealed | 258 | Aoike, Yuuki (1513) | Lost 1-2 | -191500 |
| average opponent: 1530record: 3-3 | new rating: 1500 | |||