Sekine, Yoshinori
Current rating: 1625
Record: 40-32
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1640 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 340 | Tsuge, Kyohei (1509) | Lost 0-2 | -201620 |
| 2pioneer | 501 | Oono, Masahiro (1432) | Lost 1-2 | -221598 |
| 3pioneer | 795 | Noguchi, Eita (1467) | Won 2-0 | +161614 |
| 4pioneer | 718 | Satou, Wataru (1452) | Won 2-0 | +151629 |
| 5pioneer | 548 | Shimazaki, Ryota (1761) | Lost 1-2 | -161613 |
| 6pioneer | 548 | Aizu, Hiroto (1436) | Won 2-0 | +151628 |
| 7pioneer | 439 | Miyamoto, Naoki (1456) | Won 2-1 | +151643 |
| 8pioneer | 283 | Iwasaki, Daisuke (1661) | Lost 1-2 | -181625 |
| top | average opponent: 1522record: 4-4 | new rating: 1625 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1663 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 218 | Hashimoto, Takuya (1477) | Lost 0-2 | -211642 |
| 2standard | 452 | Hamada, Takayuki (1328) | Won 2-1 | +121654 |
| 3standard | 665 | Uemoto, Takahiro (1664) | Lost 1-2 | -171637 |
| 4standard | 685 | Sano, Seita (1413) | Won 2-0 | +141651 |
| 5standard | 645 | Yoshida, Motohiro (1523) | Won 2-0 | +151666 |
| 6standard | 360 | Leung, Victor (1490) | Lost 1-2 | -211645 |
| 7standard | 508 | Saito, Tomohiro (1561) | Lost 0-2 | -191626 |
| 8standard | 471 | Horiuchi, Shingo (1432) | Won 2-0 | +141640 |
| top | average opponent: 1486record: 4-4 | new rating: 1640 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 186 | Yasuda, Kimihiko (1409) | Won 2-0 | +151587 |
| 2sealed | 303 | Suzuta, Yuichi (1519) | Won 2-0 | +171604 |
| 3sealed | 416 | Nishida, Keisuke (1554) | Lost 1-2 | -191585 |
| 4sealed | 546 | Nakamura, Yusuke9351 (1503) | Won 2-1 | +171602 |
| 5sealed | 247 | Hiyoshi, Daisuke (1625) | Lost 0-2 | -181584 |
| 6sealed | 512 | Kunuki, Yousuke (1545) | Won 2-0 | +171601 |
| 7sealed | 297 | Inui, Takashi (1538) | Won 2-1 | +171618 |
| 8sealed | 242 | Ohta, Shinji (1433) | Won 2-0 | +151633 |
| 9sealed | 145 | Nakamura, Shuhei (2089) | Lost 0-2 | -101623 |
| 10draft | 134 | Oshima, Keisuke (1689) | Won 2-1 | +191642 |
| 11draft | 139 | Nagao, Yasutaka (1803) | Won 2-1 | +211663 |
| 12draft | 140 | Higashimori, Kazunori (1586) | Lost 1-2 | -201643 |
| 13draft | 127 | Miwa, Ryou (1731) | Won 2-0 | +201663 |
| 14draft | 156 | Ohshiro, Syusaku (1700) | Lost 1-2 | -171646 |
| 15draft | 118 | Kuroiwa, Satoshi (1622) | Won 2-0 | +171663 |
| top | average opponent: 1623record: 10-5 | new rating: 1663 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 245 | Kowata, Kyohei (1495) | Won 2-0 | +171555 |
| 2modern | 127 | Suginaka, Toshiya (1399) | Won 2-1 | +151570 |
| 3modern | 113 | Oono, Takahiro (1505) | Lost 1-2 | -191551 |
| 4modern | 356 | Suzuki, Yuta 8270 (1484) | Won 2-0 | +171568 |
| 5modern | 195 | Tabei, Hirotomo (1583) | Won 2-1 | +181586 |
| 6modern | 121 | Kamo, Kyouhei (1568) | Won 2-0 | +181604 |
| 7modern | 102 | Sugaya, Hironobu (1879) | Lost 1-2 | -131591 |
| 8modern | 136 | Yoshii, Takayuki (1583) | Lost 1-2 | -191572 |
| top | average opponent: 1562record: 5-3 | new rating: 1572 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 446 | Ohno, Yohei (1426) | Lost 1-2 | -191483 |
| 2standard | 590 | Kimonji, Hiroki (1481) | Won 2-1 | +181501 |
| 3standard | 514 | Fukasawa, Jyunichi (1501) | Won 2-0 | +181519 |
| 4standard | 406 | Takanohashi, Tatsuya (1467) | Won 2-1 | +171536 |
| 5standard | 387 | Fukuda, Yuuki (1568) | Won 2-0 | +181554 |
| 6standard | 266 | Miyagawa, Yoshihiro (1558) | Lost 0-2 | -171537 |
| 7standard | 236 | Okamoto, Katsuki (1693) | Won 2-0 | +201557 |
| 8standard | 175 | Yabe, Tomoyoshi (1464) | Lost 1-2 | -191538 |
| top | average opponent: 1520record: 5-3 | new rating: 1538 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 38 | Dominico, Mikhael (1500) | Lost 1-2 | -181481 |
| 2legacy | 478 | Hayashi, Kosuke (1484) | Won 2-0 | +181499 |
| 3legacy | 397 | Sakai, Takanori (1502) | Lost 1-2 | -181481 |
| 4legacy | 453 | Sasao, Yusuke (1695) | Lost 0-2 | -141467 |
| 5legacy | 588 | Yanagisawa, Tadahiro (1432) | Won 2-0 | +171484 |
| 6legacy | 525 | Nishiyama, Kazuki (1322) | Won 2-1 | +151499 |
| 7legacy | 364 | Sugimura, Yoshiyasu (1658) | Lost 0-2 | -151484 |
| 8legacy | 369 | Ueda, Yohei (1505) | Won 2-1 | +181502 |
| top | average opponent: 1512record: 4-4 | new rating: 1502 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 510 | Toyama, Keiichi (1500) | Won 2-0 | +191466 |
| 2sealed | 484 | Arai, Ryou9421 (1534) | Won 2-1 | +191485 |
| 3sealed | 456 | Yanou, Tomiyuki (1519) | Won 2-0 | +191504 |
| 4sealed | 137 | Takano, Hayato (1555) | Won 2-1 | +191523 |
| 5sealed | 95 | Takahari, Hiroyuki (1665) | Lost 1-2 | -151508 |
| 6sealed | 248 | Koide, Yukua (1593) | Won 2-0 | +191527 |
| 7sealed | 135 | Obitsu, Youtarou (1757) | Lost 0-2 | -141513 |
| 8sealed | 306 | Fujita, Toshihide (1702) | Lost 1-2 | -141499 |
| top | average opponent: 1603record: 5-3 | new rating: 1499 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 250 | Inui, Takeshi (1508) | Won 2-1 | +181518 |
| 2modern | 533 | Dan, Gyoutou (1522) | Lost 1-2 | -181500 |
| 3modern | 734 | Fukumoto, Tsuyoshi (1521) | Lost 0-2 | -171483 |
| 4modern | 941 | Takakura, Shinichirou (1474) | Won 2-1 | +171500 |
| 5modern | 809 | Hayashi, Naoki (1595) | Lost 1-2 | -161484 |
| 6modern | 1061 | Shiohama, Takeru (1487) | Lost 1-2 | -181466 |
| 7modern | 1024 | Fukuda, Shouhei (1447) | Lost 1-2 | -181448 |
| 8modern | 932 | Oda, Katsumi (1378) | Won 2-0 | +171465 |
| 9modern | 786 | Hosoda, Daiki (1498) | Lost 1-2 | -181447 |
| top | average opponent: 1492record: 3-6 | new rating: 1447 | ||