Ishii, Taiyo
Current rating: 1533
Record: 65-74-3
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- 2020
- 2023
| Regional Championships Yokohama 2023 (ONE standard) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 19 | Fukushima, Yuuhei (1621) | Lost 1-2 | -161495 |
| 2standard | 75 | Sakuta, Akira (1628) | Lost 1-2 | -161479 |
| 3standard | 91 | Yoon, SooHan (1583) | Won 2-1 | +201499 |
| 4standard | 75 | Tomita, Ryutaro (1539) | Won 2-1 | +191518 |
| 5standard | 62 | Nakamura, Ryota (1496) | Won 2-1 | +171535 |
| 6standard | 39 | Mikami, Yoshirou (1949) | Won 2-0 | +251560 |
| 7standard | 14 | Katou, Yuuta (1696) | Won 2-0 | +211581 |
| 8standard | 13 | Ishikawa, Takahiro (1617) | Won 2-0 | +191600 |
| 9standard | 8 | Okamura, Marei (1683) | Lost 0-2 | -171583 |
| 10standard | 10 | Kawasaki, Hirotaka (1820) | Lost 0-2 | -141569 |
| 11standard | 18 | Takemasa, Shun (1559) | Lost 1-2 | -181551 |
| 12standard | 23 | Ikeyama, Shingo (1538) | Lost 0-2 | -181533 |
| top | average opponent: 1644record: 6-6 | new rating: 1533 | ||
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 315 | Thompson, Chris [AUS] (1846) | Won 2-0 | +251521 |
| 2pioneer | 300 | Takahira, Shunsuke (1737) | Won 2-1 | +211542 |
| 3pioneer | 6 | Nobuta, Kazuhito (1484) | Won 2-1 | +171559 |
| 4pioneer | 25 | Watanabe, Maki (1714) | Lost 0-2 | -151544 |
| 5pioneer | 145 | Saito, Tomohiro (1603) | Lost 0-2 | -171527 |
| 6pioneer | 280 | Yoshida, Kei (1605) | Lost 1-2 | -161511 |
| top | average opponent: 1665record: 3-3 | new rating: 1511 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 93 | Horiguchi, Naoya (1500) | Won 2-1 | +181520 |
| 2standard | 336 | Morimoto, Shingo (1438) | Lost 0-2 | -191501 |
| 3standard | 677 | Suzuki, Shota 9888 (1433) | Lost 1-2 | -201481 |
| 4standard | 789 | Aoike, Yuuki (1500) | Won 2-1 | +191500 |
| 5standard | 586 | Itou, Kuninosuke (1287) | Won 2-1 | +141514 |
| 6standard | 384 | Shinoda, Takayuki (1545) | Lost 0-2 | -181496 |
| top | average opponent: 1451record: 3-3 | new rating: 1496 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 561 | Kobayashi, Masahiro (1359) | Lost 0-2 | -211506 |
| 2sealed | 555 | Iitsuka, Satoshi (1369) | Won 2-0 | +151521 |
| 3sealed | 720 | Tokitsu, Hiroshi (1538) | Won 2-0 | +191540 |
| 4sealed | 428 | Bergelin, Erik (1499) | Lost 0-2 | -191521 |
| 5sealed | 804 | Hosaka, Atsushi (1484) | Lost 1-2 | -191502 |
| top | average opponent: 1450record: 2-3 | new rating: 1502 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 530 | Nakamura, Kousuke (1660) | Won 2-0 | +211529 |
| 2standard | 372 | Abe, Hirofumi (1698) | Won 2-0 | +211550 |
| 3standard | 305 | Yamazaki, Masami (1535) | Won 2-0 | +181568 |
| 4standard | 50 | Lapnimitchai, Arikorn (1464) | Lost 0-2 | -201548 |
| 5standard | 397 | Miura, Daisuke (1470) | Won 2-0 | +171565 |
| 6standard | 272 | Maki, Hidekazu (1668) | Lost 1-2 | -171548 |
| 7standard | 262 | Akagi, Takaaki (1341) | Lost 0-2 | -211527 |
| top | average opponent: 1548record: 4-3 | new rating: 1527 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 699 | Morimoto, Shingo (1465) | Draw 1-1 | -11532 |
| 2standard | 667 | Fukutani, Mitumasa (1356) | Lost 1-2 | -211511 |
| 3standard | 992 | Onoyama, Keisuke (1447) | Won 2-0 | +171528 |
| 4standard | 802 | Danjo, Hiroyuki (1459) | Lost 1-2 | -201508 |
| top | average opponent: 1432record: 1-2-1 | new rating: 1508 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 115 | Shiraishi, Makoto (1510) | Lost 0-2 | -191533 |
| top | record: 0-1 | new rating: 1533 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 162 | Yamamoto, Yuta (1556) | Won 2-1 | +201502 |
| 2sealed | 238 | Cortese, Alessandro (1598) | Won 2-0 | +201522 |
| 3sealed | 351 | Kubozono, Yuta (1445) | Won 2-1 | +161538 |
| 4sealed | 201 | Wu, Allen (2196) | Won 2-0 | +291567 |
| 5sealed | 87 | Sugisawa, Tsuyoshi (1638) | Won 2-1 | +191586 |
| 6sealed | 61 | Nukita, Yosuke (1739) | Lost 1-2 | -151571 |
| 7sealed | 131 | Itou, Kenshirou (1778) | Won 2-1 | +211592 |
| 8sealed | 32 | Cesar Siqueira, Jorge Henrique (1775) | Lost 0-2 | -141578 |
| 9sealed | 213 | Arvigo, Matias Gabriel (1770) | Lost 1-2 | -151563 |
| 10draft | 349 | Orange, Gregory (1954) | Lost 0-2 | -111552 |
| top | average opponent: 1745record: 6-4 | new rating: 1552 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 480 | Asou, Shingo (1485) | Lost 0-2 | -191524 |
| 2modern | 764 | Masaike, Toshiki (1464) | Lost 1-2 | -191505 |
| 3modern | 1274 | Yamamoto, Kazuhide (1383) | Won 2-1 | +161521 |
| 4modern | 952 | Okudaira, Takenatsu (1441) | Lost 1-2 | -201501 |
| 5modern | 1193 | Wu, Chen Yen (1466) | Lost 0-2 | -191482 |
| top | average opponent: 1448record: 1-4 | new rating: 1482 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 337 | Roduta, Jonathan (1579) | Won 2-1 | +191538 |
| 2standard | 247 | Matsubara, Tohru (1777) | Won 2-0 | +221560 |
| 3standard | 338 | Itou, Akira (1459) | Won 2-0 | +161576 |
| 4standard | 109 | Kibe, Keisuke (1754) | Lost 1-2 | -141562 |
| 5standard | 427 | Simic, Sasha (1533) | Won 2-1 | +171579 |
| 6standard | 352 | Masuko, Daisuke (1544) | Won 2-1 | +181597 |
| 7standard | 177 | Oota, Hirotaka (1625) | Lost 1-2 | -181579 |
| 8standard | 406 | Morikawa, Taichi (1651) | Lost 0-2 | -171562 |
| 9standard | 469 | Kitagawa, Yuta (1481) | Lost 0-2 | -191543 |
| top | average opponent: 1600record: 5-4 | new rating: 1543 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 247 | Matsumoto, Kei (1482) | Won 2-0 | +181538 |
| 3standard | 195 | Nishikori, Kouji (1421) | Won 2-0 | +151553 |
| 4standard | 31 | Miyahara, Syoutarou (1697) | Draw 1-1 | +31556 |
| 5standard | 192 | Igarashi, Takuma (1520) | Lost 1-2 | -191537 |
| 6standard | 464 | Adachi, Naohiko (1536) | Won 2-0 | +181555 |
| 7standard | 272 | Sugiyama, Nobukatsu (1543) | Lost 0-2 | -181537 |
| 8standard | 538 | Niwa, Kohei (1524) | Lost 1-2 | -181519 |
| top | average opponent: 1532record: 3-3-1 | new rating: 1519 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 369 | Deguchi, Koya (1533) | Lost 1-2 | -181517 |
| 3sealed | 875 | Niwa, Ryuuta (1506) | Won 2-0 | +171534 |
| 4sealed | 650 | Shibata, Kosuke (1574) | Lost 1-2 | -171517 |
| 5sealed | 722 | Yamada, Hiroshi (1520) | Won 2-0 | +181535 |
| 6sealed | 384 | Kanehira, Haruki (1425) | Won 2-0 | +161551 |
| 7sealed | 445 | Kokubun, Hiroshi (1719) | Lost 0-2 | -151536 |
| 8sealed | 469 | Udagawa, Yoshihiko (1653) | Lost 0-2 | -161520 |
| top | average opponent: 1561record: 3-4 | new rating: 1520 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 2142 | Wada, Hiroya (1888) | Lost 0-2 | -101454 |
| 4sealed | 2199 | Itou, Masahiro7176 (1450) | Won 2-0 | +181472 |
| 5sealed | 2102 | Hirami, Tomonori (1726) | Won 2-1 | +221494 |
| 6sealed | 2079 | Itimura, Kouhei (1555) | Won 2-0 | +191513 |
| 7sealed | 2023 | Yanagawa, Takahiro (1537) | Won 2-0 | +191532 |
| 8sealed | 2025 | Hagiwara, Masakatsu (1627) | Won 2-0 | +191551 |
| 9sealed | 2020 | Sugiyama, Yuya (2013) | Won 2-1 | +261577 |
| 10draft | 31 | Maeda, Yasuyuki (1577) | Won 2-0 | +181595 |
| 11draft | 53 | Nose, Koji (1929) | Lost 0-2 | -121583 |
| 12draft | 39 | Higono, Naoki (1662) | Lost 0-2 | -161567 |
| 13draft | 93 | Arita, Kento (1777) | Lost 1-2 | -151552 |
| 14draft | 158 | Suzuki, Tomofumi (1568) | Lost 1-2 | -171535 |
| top | average opponent: 1692record: 7-5 | new rating: 1535 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1322 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 9 | Sasaki, Tsutomu (1470) | Won 2-1 | +211343 |
| 4sealed | 37 | Miyano, Shinichi (1559) | Won 2-0 | +211364 |
| 5sealed | 40 | Kodama, Ren (1537) | Lost 0-2 | -141350 |
| 6sealed | 114 | Kiyonaga, Sho (1578) | Won 2-0 | +221372 |
| 7sealed | 44 | Watanabe, Masashi5421 (1575) | Won 2-0 | +211393 |
| 8sealed | 30 | Takasugi, Ryouta (1776) | Won 2-1 | +251418 |
| 9sealed | 6 | Kitauchi, Kazuya (1574) | Lost 1-2 | -151403 |
| 10draft | 82 | Aoki, Shougo (1584) | Won 2-1 | +211424 |
| 11draft | 52 | Takahashi, Dai (1752) | Won 2-1 | +241448 |
| 12draft | 45 | Itakura, Toshiyuki (1633) | Won 2-1 | +211469 |
| 13draft | 44 | Arahori, Kazuaki (1695) | Lost 0-2 | -141455 |
| 14draft | 84 | Kawakami, Kazuto (1810) | Lost 0-2 | -121443 |
| 15draft | 62 | Hori, Masataka (1601) | Won 2-1 | +211464 |
| top | average opponent: 1627record: 9-4 | new rating: 1464 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1416 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 759 | Emori, Shinichi (1637) | Lost 1-2 | -141402 |
| 3modern | 962 | Shiraishi, Yuuki (1499) | Lost 0-2 | -161386 |
| 4modern | 1135 | Funakura, Yuma (1487) | Lost 0-2 | -161370 |
| 5modern | 1188 | Takahashi, Ryouhei (1461) | Lost 0-2 | -161354 |
| 6modern | 1124 | Honda, Masakazu (1530) | Lost 0-2 | -151339 |
| 7modern | 1056 | Iyota, Makito (1401) | Lost 0-2 | -171322 |
| top | average opponent: 1503record: 0-6 | new rating: 1322 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 586 | Takahashi, Eiji (1505) | Won 2-1 | +191465 |
| 4sealed | 572 | Wakayama, Shiro (1581) | Lost 1-2 | -161449 |
| 5sealed | 635 | Nakai, Sunao (1509) | Lost 1-2 | -171432 |
| 6sealed | 687 | Oosaki, Masakazu (1553) | Lost 0-2 | -161416 |
| top | average opponent: 1537record: 1-3 | new rating: 1416 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 68 | Bandou, Junichirou (1668) | Lost 0-2 | -141456 |
| 4standard | 161 | Tonouchi, Keita (1660) | Lost 1-2 | -141442 |
| 5standard | 235 | Date, Hiroshi (1552) | Won 2-1 | +201462 |
| 6standard | 135 | Tezuka, Yo (1580) | Lost 0-2 | -161446 |
| top | average opponent: 1615record: 1-3 | new rating: 1446 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 182 | Shinoda, Isana (1517) | Lost 1-2 | -171444 |
| 3standard | 400 | Nishizawa, Taichi (1529) | Lost 0-2 | -161428 |
| 4standard | 503 | Fong, Chun Ho (1481) | Won 2-0 | +191447 |
| 5standard | 458 | Mizoshiri, Yoshikazu (1499) | Won 2-1 | +191466 |
| 6standard | 193 | Yamamoto, Yousuke (1519) | Won 2-0 | +191485 |
| 7standard | 226 | Nakamura, Takatoshi (1705) | Lost 1-2 | -151470 |
| top | average opponent: 1542record: 3-3 | new rating: 1470 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 820 | Enomoto, Masayuki (1497) | Lost 0-2 | -171438 |
| 3sealed | 979 | Ito, Takuya (1500) | Won 2-0 | +191457 |
| 4sealed | 810 | Yoshida, Akinobu (1450) | Lost 0-2 | -181439 |
| 5sealed | 966 | Toneri, Tatsuki (1499) | Won 2-0 | +191458 |
| 6sealed | 817 | Nagayama, Sou (1520) | Won 2-0 | +191477 |
| 7sealed | 772 | Hasegawa, Suguru (1588) | Lost 1-2 | -161461 |
| top | average opponent: 1509record: 3-3 | new rating: 1461 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 73 | Takahashi, Kenji (1473) | Draw 1-1 | -11489 |
| 3standard | 321 | Yuki, Ryosuke (1518) | Won 2-1 | +191508 |
| 4standard | 224 | Nakamura, Masanobu (1474) | Lost 0-2 | -191489 |
| 5standard | 396 | Naitou, Keisuke (1643) | Lost 1-2 | -151474 |
| 6standard | 505 | Mitsuboshi, Daisuke (1424) | Lost 1-2 | -191455 |
| top | average opponent: 1506record: 1-3-1 | new rating: 1455 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 140 | Nakamura, Yuya (Hino) (1500) | Lost 0-2 | -181482 |
| 2modern | 625 | Nishiwaki, Tatsuya (1482) | Won 2-1 | +181500 |
| 3modern | 458 | Yoshimura, Naoto (1438) | Won 2-0 | +171517 |
| 4modern | 309 | Morita, Masahiko (1846) | Lost 0-2 | -121505 |
| 5modern | 406 | Tateno, Tomoaki (1343) | Lost 0-2 | -211484 |
| 6modern | 487 | Takahashi, Dai (1564) | Won 2-0 | +191503 |
| 7modern | 346 | Kawamura, Kazushi (1745) | Lost 0-2 | -131490 |
| top | average opponent: 1560record: 3-4 | new rating: 1490 | ||