Okamura, Kazuyoshi
Current rating: 1417
Record: 13-18
| Grand Prix Yokohama 2019 (modern) | starting rating: 1400 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 761 | Takahashi, Toshiyuki (1396) | Won 2-0 | +181418 |
| 2modern | 311 | Sekikawa, Daichi (1827) | Lost 1-2 | -111407 |
| 3modern | 995 | Nonaka, Kanta (1501) | Won 2-1 | +191426 |
| 4modern | 609 | Nakajima, Hajime (1518) | Won 2-1 | +201446 |
| 5modern | 491 | Satou, Fumihiko (1524) | Lost 1-2 | -161430 |
| 6modern | 519 | Kitagawa, Norio (1511) | Won 2-0 | +191449 |
| 7modern | 290 | Shoji, Tatsuro (1626) | Lost 1-2 | -151434 |
| 8modern | 523 | Fukui, Keisuke (1478) | Lost 1-2 | -171417 |
| top | average opponent: 1548record: 4-4 | new rating: 1417 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 409 | Kazuki, Rika (1251) | Won 2-0 | +151454 |
| 2sealed | 279 | Yamada, Yuuki (1493) | Lost 0-2 | -181436 |
| 3sealed | 796 | Kawada, Hiroyuki (1293) | Lost 1-2 | -201416 |
| 4sealed | 835 | Yoshii, Akimi (1476) | Lost 0-2 | -171399 |
| 5sealed | 977 | Sano, Seita (1465) | Won 2-1 | +191418 |
| 6sealed | 723 | Matsumura, Shinya (1408) | Lost 0-2 | -181400 |
| top | average opponent: 1398record: 2-4 | new rating: 1400 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 741 | Hokumura, Tatsuro (1415) | Lost 0-2 | -191458 |
| 2standard | 892 | Furukawa, Yuki (1482) | Won 2-1 | +181476 |
| 3standard | 684 | Yamaguchi, Hiromitsu (1470) | Lost 1-2 | -181458 |
| 4standard | 1045 | Ogawa, Takumi (1482) | Lost 0-2 | -171441 |
| 5standard | 986 | Yamamoto, Kazuhide (1383) | Won 2-0 | +171458 |
| 6standard | 901 | Suzuki, Towa (1414) | Lost 0-2 | -191439 |
| top | average opponent: 1441record: 2-4 | new rating: 1439 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 152 | Nonaka, Shouhei (1464) | Won 2-0 | +171531 |
| 2sealed | 77 | Takenouchi, Tetsuya (1673) | Lost 0-2 | -161515 |
| 3sealed | 321 | Kubota, Takahiro (1498) | Lost 0-2 | -181497 |
| 4sealed | 328 | Suzuki, Masaya (1400) | Lost 0-2 | -201477 |
| top | average opponent: 1509record: 1-3 | new rating: 1477 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 689 | Suzuki, Kazuma (1485) | Won 2-1 | +181518 |
| 2standard | 667 | Nakayama, Munetoshi (1518) | Won 2-1 | +181536 |
| 3standard | 525 | Yada, Kazuki (1570) | Won 2-1 | +181554 |
| 4standard | 511 | Yokomizo, Gouki (1390) | Lost 0-2 | -211533 |
| 5standard | 644 | Koishihara, Akira (1436) | Lost 0-2 | -191514 |
| 6standard | 741 | Obitsu, Youtarou (1501) | Won 2-1 | +171531 |
| 7standard | 592 | Inui, Takashi (1539) | Lost 0-2 | -171514 |
| top | average opponent: 1491record: 4-3 | new rating: 1514 | ||