Seki, Toshihide
Current rating: 1507
Record: 16-16-1
| Grand Prix Kobe 2017 (modern) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 668 | Kawaguchi, Takayuki (1430) | Lost 0-2 | -201507 |
| top | record: 0-1 | new rating: 1507 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 633 | Adajar, Christopher (1453) | Won 2-1 | +171532 |
| 2legacy | 422 | Takemasa, Tuyosi (1484) | Won 2-0 | +171549 |
| 3legacy | 422 | Karibe, Ryutaro (1531) | Won 2-1 | +171566 |
| 4legacy | 184 | McNeace, Shawn (2066) | Lost 0-2 | -91557 |
| 5legacy | 341 | Sumida, Norihito (1543) | Lost 1-2 | -181539 |
| 6legacy | 603 | Yamazaki, Yuuki (1731) | Lost 1-2 | -151524 |
| 7legacy | 706 | Raitano, Tristan (1517) | Lost 0-2 | -181506 |
| 8legacy | 777 | Chan, Andy (1678) | Won 2-1 | +211527 |
| top | average opponent: 1625record: 4-4 | new rating: 1527 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 287 | Hatayama, Takaharu (1500) | Lost 0-2 | -181514 |
| 2legacy | 357 | Murakawa, Naoya (1482) | Won 2-0 | +171531 |
| 3legacy | 305 | Soda, Toshiyuki (1499) | Won 2-0 | +171548 |
| 4legacy | 296 | Ogyu, Yoshiyuki (1483) | Won 2-0 | +171565 |
| 5legacy | 106 | Yabuguchi, Youhei (1505) | Lost 0-2 | -191546 |
| 6legacy | 159 | Okutomi, Hiromitsu (1425) | Won 2-1 | +161562 |
| 7legacy | 162 | Hirayama, Shigetaka (1603) | Lost 1-2 | -171545 |
| 8legacy | 198 | Kudou, Shintarou (1516) | Lost 0-2 | -191526 |
| 9legacy | 191 | Tamura, Ryo (1895) | Lost 1-2 | -111515 |
| top | average opponent: 1545record: 4-5 | new rating: 1515 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 267 | Fukushima, Shingo (1500) | Won 2-0 | +181519 |
| 2modern | 238 | Takaki, Kengo (1517) | Lost 1-2 | -181501 |
| 3modern | 236 | Hayashibara, Kazuki (1482) | Lost 0-2 | -181483 |
| 4modern | 406 | Nishida, Tetsushi (1481) | Lost 1-2 | -181465 |
| 5modern | 451 | Yoshida, Shinsuke (1349) | Won 2-1 | +151480 |
| 6modern | 415 | Akimoto, Yoshiki (1390) | Draw 1-1 | -11479 |
| 7modern | 369 | Kawa, Hirokazu (1480) | Won 2-1 | +181497 |
| 8modern | 281 | Matsushima, Kouji (1534) | Won 2-0 | +191516 |
| 9modern | 219 | Ikeda, Takeaki (1444) | Won 2-1 | +161532 |
| top | average opponent: 1464record: 5-3-1 | new rating: 1532 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 296 | Kawamura, Tamio (1500) | Won 2-0 | +181518 |
| 2block | 283 | Wang, Ming Chee (1506) | Lost 0-2 | -181500 |
| 3block | 515 | Tanaka, Toshifumi (1500) | Lost 0-2 | -181482 |
| 4block | 450 | Okabayashi, Shun (1549) | Lost 1-2 | -171465 |
| 5block | 542 | Yamaguchi, Yuji (1464) | Won 2-0 | +181483 |
| 6block | 409 | Morinaga, Teppei (1482) | Won 2-0 | +181501 |
| top | average opponent: 1500record: 3-3 | new rating: 1501 | ||