Okuda, Isao
Current rating: 1438
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 80 | Tamai, Yuno (1612) | Lost 0-2 | -161453 |
| 2sealed | 603 | Harada, Sosuke (1536) | Lost 1-2 | -161437 |
| 3sealed | 1128 | Shibue, Takahiro (1305) | Won 2-0 | +151452 |
| 4sealed | 804 | Usami, Taro (1665) | Lost 1-2 | -141438 |
| 5sealed | 952 | Hanawa, Atsushi (1414) | Won 2-1 | +181456 |
| 6sealed | 815 | Sugiyama, Nobukatsu (1473) | Lost 1-2 | -181438 |
| top | average opponent: 1501record: 2-4 | new rating: 1438 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 431 | Ueda, Yushi (1335) | Won 2-0 | +161497 |
| 2sealed | 12 | Nagaoka, Takayuki (1766) | Lost 1-2 | -141483 |
| 3sealed | 445 | Ikeyama, Kei (1588) | Lost 0-2 | -161467 |
| 4sealed | 501 | Robinson, Kevin (1481) | Lost 1-2 | -171450 |
| 5sealed | 441 | Tsuji, Toshiya (1482) | Won 2-0 | +181468 |
| 6sealed | 358 | Kawaharada, Kosaku (1495) | Draw 1-1 | +11469 |
| top | average opponent: 1525record: 2-3-1 | new rating: 1469 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 151 | Ishikawa, Souta (1465) | Won 2-1 | +171517 |
| 2legacy | 190 | Ishibashi, Takuya (1462) | Lost 0-2 | -191498 |
| 3legacy | 264 | Komori, Koudai (1499) | Won 2-0 | +181516 |
| 4legacy | 295 | Kawachi, Katsuya (1472) | Lost 0-2 | -181498 |
| 5legacy | 297 | Furuichi, Takenori (1593) | Lost 0-2 | -171481 |
| top | average opponent: 1498record: 2-3 | new rating: 1481 | ||