Sekiya, Hiroshi
Current rating: 1344
Record: 19-30
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1372 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 223 | Hasegawa, Tsuneyuki (1298) | Won 2-1 | +171389 |
| 2pioneer | 249 | Furusho, Kotaro (1628) | Lost 1-2 | -141375 |
| 3pioneer | 487 | Sue, Ryoichi (1612) | Lost 1-2 | -141361 |
| 4pioneer | 608 | Goto, Yoshimasa (1404) | Lost 0-2 | -171344 |
| top | average opponent: 1486record: 1-3 | new rating: 1344 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1361 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 580 | Kanda, Shigeru (1403) | Won 2-1 | +181379 |
| 2sealed | 128 | Ito, Tsukasa (1512) | Won 2-0 | +211400 |
| 3sealed | 529 | Iwasaki, Koichi (1545) | Lost 0-2 | -161384 |
| 4sealed | 426 | Taguchi, Hiroyasu (1514) | Lost 0-2 | -151369 |
| 5sealed | 719 | Yamaguchi, Naohiro (1376) | Won 2-1 | +181387 |
| 6sealed | 598 | Ito, Wataru (1552) | Lost 1-2 | -151372 |
| top | average opponent: 1484record: 3-3 | new rating: 1372 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1390 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 704 | Amagai, Masahiro (1372) | Won 2-0 | +171407 |
| 2modern | 33 | Funami, Syun (1511) | Lost 1-2 | -161391 |
| 3modern | 655 | Matsuda, Hiroki (1595) | Lost 1-2 | -141377 |
| 4modern | 1053 | Tomonori, Makanae (1482) | Lost 0-2 | -161361 |
| top | average opponent: 1490record: 1-3 | new rating: 1361 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 660 | Harada, Yugo (1552) | Lost 1-2 | -161383 |
| 2standard | 680 | Makishita, Yamato (1481) | Won 2-1 | +201403 |
| 3standard | 708 | Mochizuki, Kaichi (1499) | Won 2-1 | +201423 |
| 4standard | 498 | Cai, Jiahui (1466) | Lost 1-2 | -171406 |
| 5standard | 827 | Nakamura, Go (1502) | Lost 0-2 | -161390 |
| top | average opponent: 1500record: 2-3 | new rating: 1390 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 448 | Yamada, Ryotaro (1502) | Won 2-1 | +191446 |
| 2legacy | 201 | Fujita, Kenichi (1743) | Lost 0-2 | -131433 |
| 3legacy | 408 | Carnicer, Javier (1479) | Lost 0-2 | -171416 |
| 4legacy | 568 | Matsunaga, Yuji (1449) | Lost 1-2 | -171399 |
| top | average opponent: 1543record: 1-3 | new rating: 1399 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1457 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 606 | Seki, Tosio (1652) | Won 2-1 | +221479 |
| 2sealed | 396 | Hirase, Gun (1550) | Lost 0-2 | -171462 |
| 3sealed | 971 | Nakamichi, Yuko (1441) | Lost 1-2 | -181444 |
| 4sealed | 934 | Aoki, Masatugu (1487) | Lost 1-2 | -171427 |
| top | average opponent: 1532record: 1-3 | new rating: 1427 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 198 | Kataoka, Kousuke (1500) | Lost 0-2 | -171465 |
| 2standard | 671 | Kounosu, Hiroaki (1246) | Lost 0-2 | -221443 |
| 3standard | 1210 | Arai, Ikki (1317) | Won 2-0 | +161459 |
| 4standard | 1018 | Fujimoto, Naoya (1480) | Won 2-1 | +181477 |
| 5standard | 977 | Aoki, Toshihito (1394) | Lost 1-2 | -201457 |
| top | average opponent: 1387record: 2-3 | new rating: 1457 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 588 | Makino, Yuuki (1500) | Lost 1-2 | -181461 |
| 2legacy | 793 | Watanabe, Ryouta3802 (1482) | Won 2-1 | +191480 |
| 3legacy | 932 | Mori, Takahiro (1459) | Lost 0-2 | -191461 |
| 4legacy | 914 | Sato, Wataru9450 (1464) | Won 2-1 | +181479 |
| 5legacy | 829 | Yoshino, Yorimoto (1532) | Won 2-1 | +191498 |
| 6legacy | 492 | Ito, Shinichi (1611) | Lost 1-2 | -161482 |
| top | average opponent: 1508record: 3-3 | new rating: 1482 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 206 | Kazaoka, Nicholle (1561) | Won 2-1 | +191498 |
| 2standard | 42 | Yamamoto, Yoshihiro (1524) | Lost 0-2 | -171481 |
| 3standard | 1343 | Soma, Mitsuyoshi (1449) | Won 2-0 | +171498 |
| 4standard | 854 | Nakai, Yuuta (1485) | Won 2-1 | +181516 |
| 5standard | 686 | Fukushima, Yuuhei (1529) | Won 2-0 | +181534 |
| 6standard | 293 | Hayashi, Yuya (1525) | Lost 1-2 | -181516 |
| 7standard | 436 | Taniguchi, Hitoshi (1527) | Lost 1-2 | -181498 |
| 8standard | 793 | Hattori, Yutaka (1445) | Lost 1-2 | -191479 |
| top | average opponent: 1505record: 4-4 | new rating: 1479 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 850 | Tsunoda, Yotaro (1404) | Lost 0-2 | -201480 |
| 2sealed | 775 | Yamada, Junki (1481) | Won 2-1 | +181498 |
| 3sealed | 926 | Oguri, Hiroki (1407) | Lost 0-2 | -191479 |
| top | average opponent: 1431record: 1-2 | new rating: 1479 | ||