Sumikawa, Daiki
Current rating: 1372
Record: 8-17-1
| Grand Prix Yokohama 2019 (modern) | starting rating: 1358 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 89 | Takahashi, Naohiro (1490) | Won 2-1 | +201378 |
| 2modern | 245 | Kitajima, Shunsuke (1518) | Lost 0-2 | -151363 |
| 3modern | 748 | Kochi, Daiki (1573) | Lost 1-2 | -151348 |
| 4modern | 948 | Kamijo, Shiori (1478) | Won 2-0 | +211369 |
| 5modern | 680 | Fukuura, Ryo (1499) | Won 2-1 | +201389 |
| 6modern | 520 | Murakami, Yuuki 5742 (1436) | Lost 1-2 | -171372 |
| top | average opponent: 1499record: 3-3 | new rating: 1372 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1403 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 130 | Tanaka, Katsumi (1481) | Draw 1-1 | +11404 |
| 2standard | 781 | Kageyama, Dan (1500) | Lost 1-2 | -161388 |
| 3standard | 1393 | Masaya, Arai (1480) | Lost 0-2 | -161372 |
| 4standard | 1537 | Takahashi, Tooru (1514) | Lost 1-2 | -161356 |
| 5standard | 1538 | Sugita, Ryu (1447) | Won 2-0 | +201376 |
| 6standard | 1368 | Otuka, Ryutaro (1355) | Lost 1-2 | -181358 |
| top | average opponent: 1463record: 1-4-1 | new rating: 1358 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1434 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1016 | Fujita, Tomohiro (1528) | Won 2-0 | +201454 |
| 2sealed | 1141 | Oshikawa, Akira (1517) | Lost 0-2 | -171437 |
| 3sealed | 1134 | Dai, Kentaro (1499) | Lost 0-2 | -171420 |
| 4sealed | 1228 | Sugawa, Yousuke (1483) | Lost 0-2 | -171403 |
| top | average opponent: 1507record: 1-3 | new rating: 1403 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 990 | Nakashima, Tatsuya (1500) | Won 2-0 | +191484 |
| 2sealed | 833 | Fukumoto, Hiroaki (1584) | Lost 1-2 | -161468 |
| 3sealed | 885 | Miyashiro, Ronaldo (1560) | Lost 0-2 | -171451 |
| 4sealed | 1036 | Yasu, Ryotaro (1481) | Lost 0-2 | -171434 |
| top | average opponent: 1531record: 1-3 | new rating: 1434 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 121 | Okuma, Naoki (1500) | Lost 0-2 | -181482 |
| 2modern | 544 | Toda, Hirotsugu (1569) | Lost 0-2 | -161466 |
| 3modern | 637 | Kaido, Yoshiaki (1448) | Won 2-0 | +171483 |
| 4modern | 558 | Iwamoto, Masahiro (1483) | Lost 0-2 | -181465 |
| 5modern | 625 | Karakawa, Yuta (1463) | Lost 1-2 | -181447 |
| 6modern | 568 | Tsuchiya, Yoshihiro (1446) | Won 2-1 | +181465 |
| top | average opponent: 1485record: 2-4 | new rating: 1465 | ||