Oumi, Masatoshi
Current rating: 1462
Record: 11-14
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 31 | Hayashi, Masahiro (1502) | Won 2-1 | +191474 |
| 2standard | 120 | Doi, Yuuta (1574) | Won 2-1 | +201494 |
| 3standard | 192 | Maki, Hidekazu (1773) | Lost 0-2 | -131481 |
| 4standard | 554 | Sato, Shota (1403) | Won 2-0 | +161497 |
| 5standard | 396 | Okamura, Tomoaki (1538) | Lost 0-2 | -171480 |
| 6standard | 318 | Nagayama, Sou (1493) | Lost 1-2 | -181462 |
| top | average opponent: 1547record: 3-3 | new rating: 1462 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1422 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 407 | Toyohara, Eisuke (1311) | Won 2-0 | +161438 |
| 2standard | 150 | Miwa, Ryou (1744) | Won 2-0 | +231461 |
| 3standard | 312 | Oonishi, Takahisa (1582) | Won 2-1 | +201481 |
| 4standard | 157 | Hakozaki, Yuta (1465) | Won 2-0 | +181499 |
| 5standard | 85 | Hirata, Minoru (1590) | Lost 1-2 | -161483 |
| 6standard | 152 | Hieda, Ryu (1705) | Lost 1-2 | -141469 |
| 7standard | 267 | Huang, Hao-Shan (1709) | Lost 0-2 | -141455 |
| top | average opponent: 1587record: 4-3 | new rating: 1455 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 3 | Coleman, William (1409) | Lost 1-2 | -191453 |
| 2standard | 652 | Tsukamoto, Mitsuru (1631) | Lost 0-2 | -141439 |
| 3standard | 1250 | Suganuma, Kathuhiro (1463) | Lost 0-2 | -181421 |
| 4standard | 1293 | Ishikawa, Hayate (1446) | Won 2-0 | +181439 |
| 5standard | 1086 | Fukuhara, Yuta (1465) | Lost 1-2 | -171422 |
| top | average opponent: 1483record: 1-4 | new rating: 1422 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 744 | Fujita, Gensho (1507) | Lost 1-2 | -181482 |
| 2standard | 1030 | Shigeta, Takuya (1484) | Won 2-0 | +181500 |
| 3standard | 1187 | Arai, Yoshimi (1184) | Lost 1-2 | -231477 |
| 4standard | 1124 | Saito, Atsushi (1324) | Won 2-1 | +151492 |
| 5standard | 883 | Kozutsumi, Shin (1436) | Lost 1-2 | -191473 |
| 6standard | 1304 | Kobayashi, Akio (1461) | Won 2-0 | +181491 |
| 7standard | 800 | Matumoto, Kazuki (1484) | Lost 0-2 | -191472 |
| top | average opponent: 1411record: 3-4 | new rating: 1472 | ||