Umehara, Masashi
Current rating: 1489
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 164 | Shibayama, Hayato (1256) | Won 2-1 | +131504 |
| 2sealed | 377 | Sato, Motomichi (1526) | Won 2-1 | +191523 |
| 3sealed | 180 | Kobayasi, Tomoya (1617) | Lost 1-2 | -161507 |
| 4sealed | 757 | Igarashi, Takuma (1496) | Lost 0-2 | -191488 |
| 5sealed | 845 | Furihara, Kazuki (1315) | Won 2-0 | +151503 |
| 6sealed | 605 | Nose, Kouta (1710) | Lost 0-2 | -141489 |
| top | average opponent: 1487record: 3-3 | new rating: 1489 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 217 | Murase, Tatsuya (1416) | Lost 1-2 | -201531 |
| 2standard | 621 | Kotera, Tetsuo (1262) | Lost 0-2 | -231508 |
| 3standard | 1253 | Hirosawa, Yuuichirou (1559) | Won 2-0 | +191527 |
| 4standard | 1166 | Hashimoto, Keisuke6106 (1484) | Lost 1-2 | -191508 |
| 5standard | 1114 | Matsuda, Atsushi (1541) | Lost 0-2 | -171491 |
| top | average opponent: 1452record: 1-4 | new rating: 1491 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 932 | KobayashiKawasaki, Hiroaki (1500) | Won 2-0 | +181518 |
| 2standard | 310 | Nishimura, Koichi (1424) | Draw 1-1 | -21516 |
| 3standard | 742 | Asaki, Yuuta (1535) | Won 2-0 | +191535 |
| 4standard | 395 | Hagihara, Masahiro (1536) | Draw 1-1 | 01535 |
| 5standard | 696 | Shibata, Takeshi (1525) | Lost 0-2 | -191516 |
| 6standard | 970 | Sugasawa, Tomoyuki (1504) | Won 2-0 | +181534 |
| 7standard | 697 | Tanaka, Mami (1384) | Won 2-1 | +161550 |
| 8standard | 465 | Saito, Tomoya (1644) | Won 2-1 | +191569 |
| 9standard | 303 | Yamade, Masato (1565) | Lost 1-2 | -181551 |
| top | average opponent: 1513record: 5-2-2 | new rating: 1551 | ||