Sakai, Yoshitoki
Current rating: 1881 (#775)
Record: 55-34 (GP) / 33-30 (professional)
Pro Tour Honolulu 2006Grand Prix Hiroshima 2006Grand Prix Yamagata 2006Grand Prix Kobe 2009Pro Tour Honolulu 2009Grand Prix Bangkok 2009Grand Prix Niigata 2009Grand Prix Kitakyushu 20092009 World Championship2010 World ChampionshipGrand Prix Hiroshima 2011Grand Prix Auckland 2012Grand Prix Sydney 2013Pro Tour GatecrashGrand Prix Singapore 2018
| Grand Prix Singapore 2018 (DOM standard) | starting rating: 1878 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 104 | Nisitsukcharoen, Ravikorn (1500) | Lost 1-2 | -251853 |
| 2standard | 185 | Lapnimitchai, Arikorn (1442) | Won 2-0 | +111864 |
| 3standard | 185 | Willems, Sjoerd (1737) | Won 2-1 | +161880 |
| 4standard | 103 | Lin, Mei Mei (1498) | Won 2-0 | +111891 |
| 5standard | 51 | Goshima, Akito (1777) | Won 2-1 | +161907 |
| 6standard | 38 | Ootubo, Masashi (1544) | Won 2-0 | +121919 |
| 7standard | 48 | Lu, Chao (1886) | Lost 0-2 | -191900 |
| 8standard | 47 | Ishii, Taisuke (1828) | Lost 0-2 | -191881 |
| top | average opponent: 1652record: 5-3 | new rating: 1881 | ||
| Pro Tour Gatecrash (GTC standard) | starting rating: 1822 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 45 | Levy, Raphael (1921) | Won 2-1 | +201842 |
| 2draft | 86 | Wilson, Jacob (2088) | Lost 1-2 | -141828 |
| 3draft | 108 | Yurchick, Adam (1888) | Lost 0-2 | -171811 |
| 4standard | 133 | Sjoblom, Max (1806) | Won 2-0 | +181829 |
| 5standard | 75 | Carvalho, Pedro (1809) | Won 2-1 | +181847 |
| 6standard | 65 | Sutor, Emanuel (1889) | Lost 1-2 | -171830 |
| 7standard | 68 | Antunovic, Dado (1526) | Won 2-1 | +121842 |
| 8standard | 54 | Londos, Ludvig (1813) | Won 2-0 | +181860 |
| 9draft | 73 | Thomas, Chris M (1604) | Won 2-1 | +131873 |
| 10draft | 8 | Pargh, David (1795) | Won 2-1 | +171890 |
| 11draft | 11 | The, Jason (1529) | Won 2-0 | +111901 |
| 12standard | 8 | Bolick, Robbie (1784) | Lost 0-2 | -201881 |
| 13standard | 29 | Lee, Joon Soo (1696) | Won 2-0 | +151896 |
| 14standard | 8 | Mihara, Makihito (2046) | Won 2-1 | +211917 |
| 15standard | 12 | Egan, Isaac (1900) | Lost 0-2 | -191898 |
| 16standard | 17 | Jasheway, Ian (1753) | Lost 1-2 | -201878 |
| top | average opponent: 1803record: 10-6 | new rating: 1878 | ||
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1794 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 54 | Richards, Darian (1561) | Won 2-1 | +141808 |
| 4sealed | 5 | Davey, Ryan (1553) | Lost 0-2 | -221786 |
| 5sealed | 131 | Cavenoni, Julian (1592) | Won 2-0 | +141800 |
| 6sealed | 40 | Steinaa, Peter (1765) | Won 2-0 | +181818 |
| 7sealed | 21 | Woudstra, Nicolas (1533) | Won 2-1 | +121830 |
| 8sealed | 16 | Pearce, Ian (1563) | Lost 0-2 | -221808 |
| 9draft | 57 | bian, guochen (1574) | Lost 0-0 | -221786 |
| 10draft | 12 | Likht, Richard (1567) | Won 2-0 | +141800 |
| 11draft | 51 | Savidis, Nick (1563) | Won 2-0 | +131813 |
| 12draft | 29 | Horig, Wilfy (1715) | Lost 1-2 | -191794 |
| 13draft | 21 | Sun, Jian (1582) | Won 2-0 | +141808 |
| 14draft | 31 | Zheng, Patrick (1599) | Won 2-1 | +141822 |
| top | average opponent: 1597record: 8-4 | new rating: 1822 | ||
| Grand Prix Auckland 2012 (RTR standard) | starting rating: 1695 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 34 | Denz, John (1555) | Won 2-1 | +161711 |
| 5standard | 7 | McKay, Daniel (1689) | Won 2-0 | +181729 |
| 6standard | 5 | Purdom, Anthony (1530) | Won 2-1 | +141743 |
| 7standard | 4 | Andjelkovic, Mase (1543) | Won 2-0 | +141757 |
| 8standard | 2 | Taylor, Gene (1628) | Won 2-0 | +161773 |
| 9standard | 1 | Liu, Robert (1590) | Won 2-0 | +151788 |
| 10standard | 1 | Cheung, Justin (1751) | Lost 0-2 | -191769 |
| 11standard | 2 | Hallett, Anthony (1530) | Won 2-0 | +141783 |
| 12standard | 2 | Balmes, Anthony (1621) | Won 2-1 | +151798 |
| 13standard | 1 | Witton, Adam (1822) | ID | 01798 |
| Qstandard | Purdom, Anthony (1583) | Won 2-1 | +141812 | |
| Sstandard | Witton, Adam (1836) | Lost 1-2 | -181794 | |
| top | average opponent: 1640record: 9-2-1 | new rating: 1794 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1686 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 33 | Fujita, Osamu (1920) | Lost 0-2 | -141672 |
| 3standard | 181 | Kawano, Tatsurou (1438) | Won 2-0 | +141686 |
| 4standard | 210 | Watanabe, Shinji (1543) | Won 2-0 | +151701 |
| 5standard | 124 | Tonouchi, Keita (1562) | Won 2-1 | +161717 |
| 6standard | 45 | Nakamura, Atsushi (1691) | Lost 1-2 | -191698 |
| 7standard | 118 | Tadashi K., (1536) | Won 2-1 | +151713 |
| 8standard | 85 | Matsumoto, Takafumi (1502) | Won 2-0 | +151728 |
| 9standard | 59 | Motoyama, Shouta (1574) | Won 2-1 | +151743 |
| 10standard | 21 | Nakano, Tatsuhito (1612) | Lost 0-2 | -201723 |
| 11standard | 36 | Takao, Shota (1721) | Lost 1-2 | -181705 |
| 12standard | 44 | Satou, Takashi (1559) | Lost 0-2 | -211684 |
| 13standard | 51 | Itou, Tomoya (1522) | Won 2-1 | +151699 |
| 14standard | 49 | Naitou, Takashi (1563) | Won 2-0 | +151714 |
| 15standard | 41 | Nakamura, Junya (1660) | Lost 0-2 | -191695 |
| top | average opponent: 1600record: 8-6 | new rating: 1695 | ||
| 2010 World Championship (mixed) | starting rating: 1690 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 120 | Quiroga, Martin (1502) | Won 2-1 | +141704 |
| 2standard | 18 | Leitzinger, Gerald (1795) | Won 2-0 | +201724 |
| 3standard | 43 | Yu, Pi Hsiang (1585) | Won 2-0 | +151739 |
| 4standard | 2 | Goertzen, Simon (2046) | Lost 0-2 | -121727 |
| 5standard | 36 | Golovin, Alexey (1546) | Lost 1-2 | -211706 |
| 6standard | 70 | Matignon, Guillaume (1953) | Won 2-0 | +221728 |
| 7draft | 57 | Ino, Kentaro (1737) | Lost 0-2 | -181710 |
| 8draft | 110 | Calvetto, Marcello (1894) | Won 2-0 | +211731 |
| 9draft | 37 | Stark, Ben S (2046) | Won 2-0 | +241755 |
| 10draft | 159 | Egan, Isaac (1742) | Lost 0-2 | -181737 |
| 11draft | 54 | Haggkvist, Sami (1900) | Lost 0-2 | -151722 |
| 12draft | 63 | Yukuhiro, Ken (1766) | Won 2-0 | +191741 |
| 13extended | 39 | Haggkvist, Sami (1900) | Lost 1-2 | -161725 |
| 14extended | 57 | Schroder, Ivan (1511) | Lost 0-2 | -211704 |
| 15extended | 77 | Do Anh, David (1728) | Lost 0-2 | -181686 |
| top | average opponent: 1777record: 7-8 | new rating: 1686 | ||
| 2009 World Championship (mixed) | starting rating: 1633 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 58 | Bakkehaug, Christian (1655) | Won 2-0 | +191652 |
| 2standard | 12 | Dougherty, Robert (1990) | Won 2-1 | +241676 |
| 3standard | 13 | Kibler, Brian (2102) | Won 2-0 | +251701 |
| 4standard | 13 | Brenes, Jose Miguel (1649) | Won 2-1 | +171718 |
| 5standard | 7 | Albert, Camille-Olivier (1701) | Lost 1-2 | -181700 |
| 6standard | 11 | Zhang, Zhiyang (1667) | Won 2-0 | +171717 |
| 7draft | 66 | Albert, Camille-Olivier (1699) | Won 2-1 | +181735 |
| 8draft | 106 | Brozek, Petr (1797) | Lost 1-2 | -171718 |
| 9draft | 20 | Kearney, David (1804) | Lost 1-2 | -171701 |
| 10draft | 146 | Komuro, Shuu (1848) | Won 2-1 | +211722 |
| 11draft | 152 | Yurchick, Adam (1755) | Lost 0-2 | -171705 |
| 12draft | 32 | Albert, Camille-Olivier (1683) | Won 2-0 | +171722 |
| 13extended | 35 | Mango, Gennaro (1689) | Won 2-0 | +181740 |
| 14extended | 20 | Yurchick, Adam (1774) | Lost 0-2 | -181722 |
| 15extended | 34 | Racz, Csaba (1701) | Won 2-1 | +181740 |
| 16extended | 19 | Ishimura, Shintaro (1953) | Lost 0-2 | -141726 |
| 17extended | 40 | Klauser, Benedikt (1824) | Lost 1-2 | -161710 |
| 18extended | 46 | Kucukcaglayan, Cerag (1603) | Lost 1-2 | -201690 |
| top | average opponent: 1772record: 10-8 | new rating: 1690 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1693 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 13 | Tashiro, Yoshiaki (1656) | Lost 1-2 | -191674 |
| 5sealed | 39 | Nakamura, Junya (1526) | Lost 1-2 | -201654 |
| 6sealed | 80 | Sasa, Tomoaki (1527) | Lost 0-2 | -211633 |
| top | average opponent: 1570record: 0-3 | new rating: 1633 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1689 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 4 | Mitamura, Kazuya (2070) | Won 2-0 | +251714 |
| 5sealed | 7 | Omori, Ken'ichirou (1543) | Lost 1-2 | -211693 |
| top | average opponent: 1807record: 1-1 | new rating: 1693 | ||
| Grand Prix Bangkok 2009 (M10 limited) | starting rating: 1616 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 42 | Techarattanakrai, Trichai (1535) | Won 2-1 | +171633 |
| 4sealed | 20 | Sarpphaitoon, Suppachai (1521) | Lost 1-2 | -201613 |
| 5sealed | 55 | Kositaporn, Nonthakorn (1487) | Won 2-1 | +151628 |
| 6sealed | 61 | Ichayapreug, Paeree (1585) | Won 2-0 | +181646 |
| 7sealed | 30 | Krish, Rondy (1748) | Lost 0-2 | -171629 |
| 8sealed | 68 | Dam, Lars (1832) | Won 2-1 | +221651 |
| 9draft | 7 | Teeradechsakul, Teerachai (1615) | Won 2-1 | +171668 |
| 10draft | 38 | Han, Hojae (1616) | Won 2-1 | +171685 |
| 11draft | 5 | Tan, Xing Yong (1594) | Won 2-0 | +171702 |
| 12draft | 42 | Juza, Martin (1980) | Lost 0-2 | -131689 |
| 13draft | 17 | Ng, Chi Fai (1763) | Won 2-1 | +191708 |
| 14draft | 41 | Huang, Hao-Shan (1673) | Lost 0-2 | -191689 |
| top | average opponent: 1662record: 8-4 | new rating: 1689 | ||
| Pro Tour Honolulu 2009 (Alara block) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 2 | Glenister, Mark (1612) | Lost 0-2 | -181579 |
| 2block | 158 | Sakaguchi, Naoki (1588) | Won 2-1 | +191598 |
| 3block | 60 | Penick, John (1659) | Won 2-0 | +191617 |
| 4block | 41 | Hegstad, Brian (1839) | Lost 1-2 | -141603 |
| 5block | 109 | Ruel, Olivier (1920) | Lost 0-2 | -131590 |
| 6draft | 26 | Kudo, Koichi (1635) | Won 2-0 | +191609 |
| 7draft | 85 | Perdue, Justin (1577) | Won 2-1 | +171626 |
| 8draft | 64 | Nassif, Gabriel (2071) | Lost 0-2 | -101616 |
| top | average opponent: 1738record: 4-4 | new rating: 1616 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 103 | Phelps, Michael (1525) | Lost 0-2 | -181543 |
| 3extended | 176 | Sakakuchi, Takashi (1447) | Won 2-1 | +161559 |
| 4extended | 110 | Anan, Go (1707) | Lost 1-2 | -151544 |
| 5extended | 201 | Yamauchi, Shou (1537) | Won 2-1 | +171561 |
| 6extended | 119 | Inoue, Junji (1600) | Won 2-0 | +191580 |
| 7extended | 42 | Takahashi, Teo (1494) | Won 2-1 | +171597 |
| 8extended | 62 | Arita, Ryuichi (1821) | Won 2-0 | +221619 |
| 9extended | 50 | Shiroza, Shinichiro (1600) | Won 2-0 | +171636 |
| 10extended | 13 | Taniguchi, Hiroaki (1552) | Won 2-1 | +171653 |
| 11extended | 25 | Takahashi, Yuta (1979) | Lost 0-1 | -121641 |
| 12extended | 48 | Yasooka, Shota (1819) | Lost 0-2 | -151626 |
| 13extended | 29 | Nagashima, Makoto (1782) | Lost 1-2 | -151611 |
| 14extended | 31 | Ikeda, Tsuyoshi (1864) | Lost 0-2 | -141597 |
| top | average opponent: 1671record: 7-6 | new rating: 1597 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 79 | Sawata, Michiaki (1560) | Won 2-1 | +191521 |
| 3sealed | 30 | Yanagihara, Hiroki (1547) | Lost 1-2 | -181503 |
| 4sealed | 72 | Satou, Nobuyuki (1517) | Won 2-0 | +181521 |
| 5sealed | 33 | Ito, Jun (1548) | Won 2-0 | +191540 |
| 6sealed | 18 | Kanazawa, Ayanobu (1575) | Lost 1-2 | -171523 |
| 7sealed | 18 | Nishiwaki, Kazuhisa (1711) | Won 2-0 | +211544 |
| 8sealed | 41 | Date, Hiroshi (1510) | Won 2-0 | +171561 |
| top | average opponent: 1567record: 5-2 | new rating: 1561 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 67 | Kishi, Masafumi (1521) | Won 2-1 | +191496 |
| 3sealed | 5 | Kusakabe, Shuichi (1577) | Lost 1-2 | -171479 |
| 4sealed | 62 | Saitou, Kazuya (1419) | Lost 0-2 | -191460 |
| 5sealed | 136 | Suzuki, Ryuuichi (1451) | Won 2-1 | +181478 |
| 6sealed | 77 | Imamura, Taichirou (1544) | Won 2-1 | +191497 |
| 7sealed | 106 | Yoshioka, Yasuyuki (1533) | Won 2-0 | +191516 |
| 8sealed | 79 | Omori, Tomoaki (1741) | Lost 1-2 | -141502 |
| top | average opponent: 1541record: 4-3 | new rating: 1502 | ||
| Pro Tour Honolulu 2006 (GPT standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 34 | Tsai, Ming Da (1627) | Won 2-1 | +201520 |
| 2standard | 2 | Yoon, SooHan (1518) | Lost 1-2 | -181502 |
| 3standard | 133 | Longo, Alessandro (1482) | Won 2-1 | +181520 |
| 4standard | 58 | Barth, Fabian (1443) | Lost 0-2 | -191501 |
| 5standard | 117 | Krutil, Daniel (1776) | Lost 0-2 | -141487 |
| 6standard | 147 | Krumb, Michael (1912) | Lost 0-2 | -101477 |
| top | average opponent: 1626record: 2-4 | new rating: 1477 | ||