Sumihira, Toru
Current rating: 1422
Record: 22-28-3
| Grand Prix Yokohama 2019 (modern) | starting rating: 1434 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 14 | Hashizume, Yuuya (1476) | Lost 0-2 | -181416 |
| 3modern | 658 | Takakura, Eigo (1486) | Lost 0-2 | -161400 |
| 4modern | 1075 | Homma, Naoto (1487) | Lost 1-2 | -171383 |
| 5modern | 1077 | Otsubo, Yuma (1445) | Lost 1-2 | -171366 |
| 6modern | 943 | Guo, Jia Sin (1307) | Won 2-1 | +171383 |
| 7modern | 783 | Abe, Yuji7822 (1473) | Won 2-1 | +201403 |
| 8modern | 656 | Sugii, Fumiya (1445) | Won 2-1 | +191422 |
| top | average opponent: 1446record: 3-4 | new rating: 1422 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 333 | Doi, Kazuhiro (1528) | Lost 0-2 | -171468 |
| 3standard | 632 | Hombo, Takuya (1453) | Lost 1-2 | -181450 |
| 4standard | 764 | Kashiwa, Tomohiro (1546) | Lost 1-2 | -161434 |
| top | average opponent: 1509record: 0-3 | new rating: 1434 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 365 | Ito, Kazuhiro (1468) | Lost 1-2 | -191508 |
| 3standard | 680 | Satonaka, Kentarou (1408) | Lost 1-2 | -201488 |
| 4standard | 917 | Yamada, Ryusuke (1353) | Won 2-0 | +161504 |
| 5standard | 814 | Inoue, Ojiro (1475) | Lost 0-2 | -191485 |
| top | average opponent: 1426record: 1-3 | new rating: 1485 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 522 | Kawakami, Tomoyuki (1381) | Won 2-1 | +161498 |
| 2sealed | 167 | Yamada, Mitsuhiro (1479) | Lost 1-2 | -181480 |
| 3sealed | 608 | Hasegawa, Shouichi (1567) | Draw 1-1 | +11481 |
| 4sealed | 809 | Nishizawa, Taichi (1750) | Won 2-0 | +231504 |
| 5sealed | 566 | Yasu, Ryotaro (1690) | Lost 1-2 | -141490 |
| 6sealed | 749 | Utsunomiya, Takumi (1618) | Won 2-0 | +201510 |
| 7sealed | 536 | Mizumoto, Hirotaka (1655) | Lost 0-2 | -161494 |
| 8sealed | 675 | Matsushima, Naoki (1243) | Won 2-0 | +141508 |
| 9sealed | 525 | Im, Hannah (1574) | Won 1-0 | +191527 |
| top | average opponent: 1551record: 5-3-1 | new rating: 1527 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 575 | Mitsuhisa, Masaru (1500) | Won 2-0 | +191510 |
| 2modern | 112 | Paul, Benjamin (1485) | Lost 1-2 | -191491 |
| 3modern | 870 | Mostek, Sten-Magnus (1801) | Lost 1-2 | -121479 |
| 4modern | 1210 | Sekimoto, Kandai (1596) | Lost 0-2 | -161463 |
| 5modern | 1126 | Sumida, Masashi (1461) | Won 2-0 | +181481 |
| 6modern | 1067 | Koh, Wee Lee Kelvin (1395) | Won 2-0 | +161497 |
| 7modern | 922 | Masegi, Takeshi (1476) | Lost 0-2 | -181479 |
| 8modern | 829 | Itou, Tomoya (1622) | Won 2-1 | +201499 |
| 9modern | 728 | Furuichi, Takenori (1533) | Lost 1-2 | -171482 |
| top | average opponent: 1541record: 4-5 | new rating: 1482 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 221 | Shimozato, Naoki (1500) | Lost 1-2 | -181490 |
| 2standard | 806 | Kato, Wataru (1485) | Lost 0-2 | -181472 |
| 3standard | 1291 | Konagai, Daisuke (1438) | Won 2-1 | +171489 |
| 4standard | 1148 | Mori, Fuminori (1494) | Won 2-0 | +181507 |
| 5standard | 691 | Niinuma, Hiroki (1620) | Lost 0-2 | -161491 |
| 6standard | 957 | Terashima, Kohei (1486) | Won 2-0 | +181509 |
| 7standard | 890 | Toriuchi, Daizo (1517) | Lost 1-2 | -181491 |
| top | average opponent: 1506record: 3-4 | new rating: 1491 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 240 | Takeuchi, Yamato (1500) | Lost 0-2 | -171445 |
| 2standard | 955 | Mihashi, Takanobu (1511) | Won 2-1 | +191464 |
| 3standard | 996 | Ichinohe, Seiken (1508) | Lost 0-2 | -171447 |
| 4standard | 1310 | Komori, Hiroaki (1482) | Won 2-0 | +191466 |
| 5standard | 845 | Tanina, Tetu (1498) | Won 2-0 | +181484 |
| 6standard | 914 | Tamura, Ryo (1818) | Won 2-1 | +241508 |
| 7standard | 676 | Maruyama, Yuichiro (1613) | Lost 1-2 | -161492 |
| 8standard | 685 | Nakamichi, Yuko (1516) | Won 2-1 | +181510 |
| 9standard | 524 | Ando, Masanori (1384) | Draw 1-1 | -21508 |
| top | average opponent: 1537record: 5-3-1 | new rating: 1508 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 434 | Yanagawa, Hideyuki (1418) | Lost 1-2 | -191481 |
| 2sealed | 924 | Matsumoto, Mitsunori (1482) | Draw 1-1 | 01481 |
| 3sealed | 1091 | Nishimura, Shinji (1488) | Lost 0-2 | -181463 |
| 4sealed | 1172 | Kawai, Ryo (1460) | Won 2-0 | +181481 |
| 5sealed | 987 | Suzuki, Kazuto (1461) | Lost 0-2 | -191462 |
| top | average opponent: 1462record: 1-3-1 | new rating: 1462 | ||