Oka, Nobuaki
Current rating: 1379
| Grand Prix Kobe 2017 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 132 | Iwata, Ryoji (1448) | Won 2-0 | +171482 |
| 2modern | 320 | Kabashima, Takuya (1544) | Lost 0-2 | -161466 |
| 3modern | 1011 | Okamoto, Ichiro (1664) | Lost 0-2 | -151451 |
| 4modern | 1216 | Jinbo, Takumu (1447) | Lost 0-2 | -181433 |
| 5modern | 1127 | Nakao, Yusuke (1458) | Won 2-0 | +181451 |
| 6modern | 1016 | Takahashi, Masato 3726 (1431) | Lost 0-2 | -181433 |
| 7modern | 1045 | Sakaguchi, Taiti (1521) | Lost 0-2 | -161417 |
| 8modern | 943 | Plans, Aram (1367) | Lost 1-2 | -191398 |
| 9modern | 844 | Oda, Katsumi (1361) | Lost 1-2 | -191379 |
| top | average opponent: 1471record: 2-7 | new rating: 1379 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 261 | Kato, Ryunosuke (1553) | Lost 1-2 | -171483 |
| 2sealed | 276 | Takenaga, Tomohiro (1550) | Lost 0-2 | -171466 |
| 3sealed | 363 | Watanabe, Yuuichirou (1467) | Won 2-1 | +181484 |
| 4sealed | 304 | Mizuno, Masanori (1399) | Lost 0-2 | -191465 |
| top | average opponent: 1492record: 1-3 | new rating: 1465 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 221 | Fukumoto, Jun (1500) | Lost 0-2 | -181482 |
| 2standard | 554 | Sasaki, Ryuuichi (1482) | Lost 0-2 | -181464 |
| 3standard | 720 | Nomura, Satoshi (1464) | Won 2-0 | +181482 |
| 4standard | 584 | Shibue, Takahiro (1484) | Won 2-1 | +181500 |
| top | average opponent: 1483record: 2-2 | new rating: 1500 | ||