Okamoto, Yoshiaki
Current rating: 1549
Record: 15-14-2
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 238 | Ishikawa, Tetsuo (1516) | Draw 1-1 | +11509 |
| 2standard | 392 | Yamao, Kyo (1500) | Lost 1-2 | -191490 |
| 3standard | 760 | Hickling, Adam (1491) | Won 2-1 | +181508 |
| 4standard | 608 | Ino, Keita (1597) | Lost 1-2 | -161492 |
| 5standard | 701 | Deguchi, Keizou (1574) | Won 2-1 | +201512 |
| 6standard | 566 | Kondou, Masaki (1624) | Won 2-0 | +201532 |
| 7standard | 418 | Asakura, Yoshitomo (1500) | Draw 1-1 | -11531 |
| 8standard | 414 | Kimura, Tatsuhiro (1505) | Won 2-1 | +181549 |
| top | average opponent: 1539record: 4-2-2 | new rating: 1549 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 426 | Yamaguchi, Daisuke (1507) | Lost 0-2 | -171443 |
| 2standard | 904 | Michibata, Tatsuya (1630) | Won 2-0 | +211464 |
| 3standard | 901 | Osaka, Yusuke (1582) | Won 2-1 | +201484 |
| 4standard | 557 | Suzuki, Takahiro7453 (1520) | Won 2-1 | +191503 |
| 5standard | 457 | Matsumoto, Shoji (1554) | Won 2-1 | +191522 |
| 6standard | 363 | Tanaka, Rizumu (1646) | Lost 0-2 | -161506 |
| 7standard | 509 | Kondo, Shogo (1586) | Won 2-1 | +201526 |
| 8standard | 373 | Maruo, Yuuta (1856) | Won 2-1 | +231549 |
| 9standard | 175 | Otani, Kodai (1559) | Lost 1-2 | -171532 |
| 10standard | 165 | Ishikawa, Takuma 0419 (1569) | Lost 0-2 | -181514 |
| 11standard | 160 | Satou, Marin (1648) | Won 2-0 | +211535 |
| 12standard | 134 | Komiyama, Kenichiro (1606) | Won 2-0 | +191554 |
| 13standard | 91 | Takahashi, Jun (1806) | Lost 1-2 | -131541 |
| 14standard | 115 | Otsuka, Tomohito (1660) | Lost 1-2 | -161525 |
| 15standard | 137 | Kakinoki, Junichi (1621) | Lost 1-2 | -171508 |
| top | average opponent: 1623record: 8-7 | new rating: 1508 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 169 | Wong, Natalie (1558) | Lost 1-2 | -171483 |
| 2legacy | 475 | Shibata, Rintarou (1482) | Lost 1-2 | -181465 |
| 3legacy | 605 | Takano, Hirokazu (1402) | Lost 1-2 | -191446 |
| 4legacy | 649 | Ishikawa, Takuma (1306) | Won 2-1 | +151461 |
| 5legacy | 615 | Kato, Ataru (1461) | Won 2-0 | +181479 |
| 6legacy | 478 | Kaihara, Shunsuke (1458) | Lost 1-2 | -181461 |
| 7legacy | 484 | Satou, Shouichi (1485) | Lost 1-2 | -181443 |
| 8legacy | 422 | Uchino, Gaku (1365) | Won 2-0 | +171460 |
| top | average opponent: 1440record: 3-5 | new rating: 1460 | ||