Matsubara, Akifumi
Current rating: 1629
Record: 16-11-1
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 228 | Takami, Yuuta (1527) | Won 2-0 | +201467 |
| 2standard | 125 | Masumoto, Kazuhiro (1536) | Lost 1-2 | -171450 |
| 3standard | 720 | Fukushima, Kengo (1498) | Won 2-0 | +191469 |
| 4standard | 257 | Bollen, Blake (1483) | Won 2-0 | +181487 |
| 5standard | 463 | Niwa, Ryuuta (1638) | Won 2-0 | +211508 |
| 6standard | 271 | Wakizaka, Hironari (1660) | Lost 0-2 | -151493 |
| 7standard | 209 | Hasegawa, Kay (1687) | Won 2-1 | +211514 |
| 8standard | 243 | Tezuka, Yuuki (1769) | Won 2-0 | +231537 |
| 9standard | 69 | Kawata, Kazuki (1589) | Won 2-1 | +191556 |
| 10standard | 122 | Kishi, Daiko (1510) | Won 2-1 | +171573 |
| 11standard | 82 | Yoshizawa, Kaoru (1598) | Won 2-0 | +181591 |
| 12standard | 38 | Morofuji, Takuma (2094) | Lost 0-2 | -91582 |
| 13standard | 75 | Sasaki, Yusuke 1421 (1695) | Won 2-0 | +201602 |
| 14standard | 40 | Ikawa, Yoshihiko (2172) | Won 2-0 | +271629 |
| 15standard | 36 | Yagi, Wataru (1689) | ID | 01629 |
| top | average opponent: 1676record: 11-3-1 | new rating: 1629 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 575 | Koga, Ryuji (1611) | Lost 0-2 | -161503 |
| 2standard | 848 | Akimoto, Taiki (1510) | Lost 1-2 | -181485 |
| 3standard | 1044 | Takamatsu, Hiroomi (1427) | Lost 0-2 | -191466 |
| 4standard | 1052 | Kato, Yoshiaki (1442) | Lost 0-2 | -191447 |
| top | average opponent: 1498record: 0-4 | new rating: 1447 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 270 | Narita, Takashi (1500) | Lost 0-2 | -191519 |
| top | record: 0-1 | new rating: 1519 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 1051 | Harris, Turtle (1500) | Won 2-0 | +181518 |
| 2standard | 112 | Hoshina, Ryousuke (1537) | Draw 1-1 | 01518 |
| 3standard | 758 | Sakai, Takashi (1454) | Won 2-0 | +171535 |
| 4standard | 412 | Watanabe, Shouichi (1495) | Won 2-1 | +171552 |
| 5standard | 208 | Kubota, Kouhei (1602) | Won 2-1 | +191571 |
| 6standard | 89 | Ishiai, Yoshinosuke (1576) | Won 2-0 | +181589 |
| 7standard | 44 | Healy, Brendan (1620) | Lost 0-2 | -171572 |
| 8standard | 173 | Ohno, Yuki (1704) | Lost 0-2 | -161556 |
| 9standard | 326 | Fujiwara, Takahito (1526) | Lost 0-2 | -181538 |
| top | average opponent: 1557record: 5-3-1 | new rating: 1538 | ||