Kazumasa, Akihiro
Current rating: 1344
Record: 7-17
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1372 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 697 | Shibata, Yuuya (1443) | Won 2-1 | +201392 |
| 2standard | 183 | Saitou, Masashi (1360) | Lost 1-2 | -191373 |
| 3standard | 750 | Tamai, Yuno (1589) | Lost 0-2 | -141359 |
| 4standard | 1013 | Kubota, Koki (1417) | Lost 1-2 | -171342 |
| 5standard | 958 | Matsushima, Tsutomu (1429) | Lost 1-2 | -161326 |
| 6standard | 910 | Kohki, Ogawa (1344) | Won 2-0 | +181344 |
| top | average opponent: 1430record: 2-4 | new rating: 1344 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1422 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 231 | Takagi, Yuma (1482) | Lost 0-2 | -171405 |
| 2sealed | 759 | Hoshi, Kazumi (1509) | Lost 0-2 | -161389 |
| 3sealed | 1152 | Kozawa, Kazuki (1462) | Lost 0-2 | -171372 |
| top | average opponent: 1484record: 0-3 | new rating: 1372 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1409 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2262 | Obi, Atsushi (1500) | Lost 1-2 | -171392 |
| 2sealed | 2301 | Yokota, Jun (1484) | Won 2-0 | +201412 |
| 3sealed | 2382 | Kwok, Suen Wang (1483) | Won 2-1 | +191431 |
| 4sealed | 2240 | Suda, Makoto (1450) | Won 2-1 | +191450 |
| 5sealed | 2143 | Yamamoto, Akimasa (1822) | Lost 1-2 | -121438 |
| 6sealed | 2186 | Yoshida, Masahiro (1536) | Lost 0-2 | -161422 |
| top | average opponent: 1546record: 3-3 | new rating: 1422 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 147 | Sekigawa, Takumi (1500) | Lost 1-2 | -171425 |
| 2sealed | 318 | Kodera, Yuki (1482) | Won 2-1 | +191444 |
| 3sealed | 346 | Tsunoda, Satoshi (1469) | Lost 0-2 | -181426 |
| 4sealed | 409 | Suzuki, Atsushi (1455) | Lost 0-2 | -171409 |
| top | average opponent: 1476record: 1-3 | new rating: 1409 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 348 | Imura, Hajime (1346) | Won 2-1 | +151515 |
| 2modern | 78 | Anzai, Yuusuke (1561) | Lost 1-2 | -171498 |
| 3modern | 232 | Izumida, Takuma (1399) | Lost 0-2 | -201478 |
| 4modern | 486 | Aoyama, Norimichi (1482) | Lost 1-2 | -181460 |
| 5modern | 475 | Kobayashi, Souichi (1426) | Lost 0-2 | -181442 |
| top | average opponent: 1443record: 1-4 | new rating: 1442 | ||