Kai, Tsubasa
Current rating: 1754 (#3716)
Record: 59-50-2 (GP) / 29-25 (professional)
- 2000
- 2002
- 2003
- 2004
- 2005
- 2006
- 2007
- 2008
- 2009
- 2010
| Grand Prix Yokohama 2010 (extended) | starting rating: 1758 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 161 | Matsuta, Takashi (1518) | Won 2-0 | +141772 |
| 3extended | 34 | Morishima, Kenta (1535) | Lost 1-2 | -221750 |
| 4extended | 136 | Maruyama, Shouta (1497) | Lost 0-2 | -231727 |
| 5extended | 304 | Katsuyama, Hikaru (1499) | Won 2-0 | +141741 |
| 6extended | 171 | Hamada, Akira (1606) | Won 2-0 | +161757 |
| 7extended | 161 | Inoue, Toru (1592) | Won 2-1 | +151772 |
| 8extended | 105 | Okada, Wataru (1764) | Lost 1-2 | -181754 |
| top | average opponent: 1573record: 4-3 | new rating: 1754 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1771 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 25 | Murata, Kouji (1528) | Won 2-1 | +141785 |
| 4sealed | 5 | Sakamoto, Takurou (1487) | Won 2-0 | +131798 |
| 5sealed | 6 | Takagi, Takayuki (1911) | Lost 0-2 | -161782 |
| 6sealed | 21 | Komiya, Tadayoshi (1723) | Won 2-0 | +171799 |
| 7sealed | 43 | Imai, Hideaki (1486) | Lost 1-2 | -241775 |
| 8sealed | 64 | Shiozu, Ryouma (1843) | Lost 0-2 | -171758 |
| top | average opponent: 1663record: 3-3 | new rating: 1758 | ||
| Pro Tour Kyoto 2009 (CON standard) | starting rating: 1720 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 147 | Meertens, Job (1514) | Won 2-0 | +141734 |
| 2standard | 93 | Rodriguez, Jose Roberto (1524) | Lost 0-2 | -221712 |
| 3standard | 117 | Quaresma, Marcos (1455) | Won 2-1 | +141726 |
| 4standard | 45 | Campbell, Blaine (1510) | Won 2-0 | +141740 |
| 5draft | 110 | Hu, Haibing (1691) | Won 2-1 | +171757 |
| 6draft | 20 | Cuvelier, John (1677) | Won 2-0 | +161773 |
| 7draft | 61 | Martinez Silhy, Carlos (1560) | Won 2-1 | +141787 |
| 8draft | 2 | Nassif, Gabriel (1951) | Lost 0-2 | -151772 |
| 9draft | 75 | Erickson, Jens (1638) | Lost 1-2 | -201752 |
| 10draft | 53 | Demazeau, Fabien (1731) | Lost 1-2 | -181734 |
| 11standard | 36 | Cabezas Munoz, Jose Manuel (1705) | Lost 1-2 | -191715 |
| 12standard | 62 | Mariano, Hugo (1642) | Won 2-1 | +171732 |
| 13standard | 48 | Nicastri, Aaron (1846) | Won 2-1 | +201752 |
| 14standard | 37 | Lee, Shi Tian (1826) | Won 2-0 | +191771 |
| top | average opponent: 1662record: 9-5 | new rating: 1771 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1623 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 36 | Oonishi, Takahisa (1525) | Won 2-0 | +161639 |
| 4sealed | 17 | Hirosawa, Yuuta (1781) | Won 2-1 | +201659 |
| 5sealed | 10 | Morisaki, Nobuki (1500) | Won 2-1 | +151674 |
| 6sealed | 62 | Imaizumi, Takuya (1602) | Won 2-1 | +171691 |
| 7sealed | 13 | Yamada, Hiroki (1657) | Lost 0-2 | -181673 |
| 8sealed | 15 | Ruel, Olivier (2008) | ID | 01673 |
| 9draft | 26 | Asahara, Akira (1945) | Won 2-0 | +221695 |
| 10draft | 7 | Miyajima, Yoshitaka (1670) | Won 2-0 | +181713 |
| 11draft | 32 | Mitamura, Kazuya (2000) | Won 2-1 | +231736 |
| 12draft | 7 | Yamamoto, Akimasa (1825) | Lost 0-2 | -161720 |
| 13draft | 1 | Nakajima, Chikara (1791) | Lost 1-2 | -171703 |
| 14draft | 7 | Taniguchi, Yuusuke (1631) | Won 2-0 | +171720 |
| top | average opponent: 1744record: 8-3-1 | new rating: 1720 | ||
| Grand Prix Manila 2008 (Lorwyn block) | starting rating: 1623 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 34 | Han, Hojae (1563) | Lost 0-2 | -191604 |
| 4block | 101 | Ching, Benidex (1518) | Won 2-1 | +171621 |
| 5block | 118 | Aslanbaigi, Ali (1537) | Won 2-0 | +161637 |
| 6block | 58 | Chao, Peter (1589) | Lost 0-2 | -191618 |
| 7block | 73 | Tolentino, Diolouie M (1538) | Won 2-0 | +171635 |
| 8block | 76 | Iyanaga, Junya (1957) | Lost 1-2 | -121623 |
| top | average opponent: 1617record: 3-3 | new rating: 1623 | ||
| Grand Prix Kitakyushu 2007 (LRW limited) | starting rating: 1667 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 18 | Kaneyasu, Takeshi (1469) | Lost 0-2 | -221645 |
| 4sealed | 95 | Motoyama, Kazuhiko (1716) | Won 2-1 | +191664 |
| 5sealed | 38 | Kawakami, Hiroshi (1582) | Lost 1-2 | -191645 |
| 6sealed | 92 | Kise, Masato (1548) | Lost 1-2 | -201625 |
| 7sealed | 76 | Fukushige, Hirofumi (1505) | Won 2-1 | +161641 |
| 8sealed | 3 | Maehata, Yasuhito (1671) | Lost 1-2 | -181623 |
| top | average opponent: 1582record: 2-4 | new rating: 1623 | ||
| Pro Tour Valencia 2007 (extended) | starting rating: 1657 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 16 | Kiwanont, Sukhum (1627) | Lost 1-2 | -181639 |
| 2extended | 133 | Negrin, Gustavo (1479) | Won 2-0 | +151654 |
| 3extended | 66 | Chiera, Luca (1571) | Won 2-0 | +161670 |
| 4extended | 43 | Merkel, Jan-Moritz (1848) | Lost 0-2 | -141656 |
| 5extended | 113 | Levy, Raphael (1988) | Won 2-0 | +231679 |
| 6extended | 98 | Woltereck, Chris (1774) | Lost 0-2 | -161663 |
| 7extended | 85 | Salemi, Claudio (1635) | Won 2-1 | +181681 |
| 8extended | 60 | Ammeux, Julien (1683) | Lost 0-2 | -181663 |
| 9extended | 91 | Stocks, Jonathan (1778) | Won 2-0 | +201683 |
| 10extended | 70 | van Medevoort, Robert (1780) | Lost 0-2 | -161667 |
| top | average opponent: 1716record: 5-5 | new rating: 1667 | ||
| Pro Tour Honolulu 2006 (GPT standard) | starting rating: 1605 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 100 | Nurmi, Mikko (1580) | Lost 1-2 | -181587 |
| 2standard | 154 | Petterson, Markus (1657) | Won 2-1 | +191606 |
| 3standard | 86 | Bastrykin, Semen (1526) | Won 2-1 | +161622 |
| 4standard | 55 | Pappaterra, Pedro (1502) | Won 2-1 | +161638 |
| 5standard | 35 | Calafell, Joel (1686) | Won 2-1 | +191657 |
| 6standard | 31 | Kaji, Tomohiro (2087) | Won 2-0 | +251682 |
| 7standard | 18 | Woltereck, Chris (1770) | Lost 0-2 | -161666 |
| 8standard | 26 | Taniguchi, Yuusuke (1584) | Lost 0-2 | -191647 |
| 9standard | 63 | Osawa, Takuya (1895) | Won 2-1 | +221669 |
| 10standard | 49 | Costa, Frederico (1623) | Lost 1-2 | -191650 |
| 11standard | 41 | Beekx, Luc (1638) | Won 2-0 | +181668 |
| 12standard | 29 | Davis, Jim (1632) | Won 2-1 | +171685 |
| 13standard | 19 | Chua, Chang (1815) | Lost 1-2 | -151670 |
| 14standard | 40 | Olivera, Adrian (1569) | Lost 0-2 | -201650 |
| 15standard | 47 | Ruess, Jan (1883) | Won 2-1 | +221672 |
| 16standard | 37 | Lieberman, Alex (1855) | Lost 1-2 | -151657 |
| top | average opponent: 1706record: 9-7 | new rating: 1657 | ||
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 8 | Nakamura, Yuusuke (1566) | Won 2-0 | +171639 |
| 5extended | 10 | Azuma, Motokiyo (1817) | Won 2-1 | +211660 |
| 6extended | 9 | Wachi, Shinya (1545) | Lost 1-2 | -201640 |
| 7extended | 13 | Kawakami, Hiroshi (1472) | Won 2-0 | +151655 |
| 8extended | 6 | Saitou, Kotatsu (1623) | Lost 1-2 | -191636 |
| 9extended | 19 | Bandou, Junichirou (1864) | Draw 1-1 | +41640 |
| 10extended | 15 | Nakano, Yoshitaka (1716) | Lost 0-2 | -161624 |
| 11extended | 22 | Koyama, Kenta (1683) | Lost 0-2 | -171607 |
| 12extended | 10 | Tsai, Chih-Chun (1565) | Won 2-0 | +171624 |
| 13extended | 10 | Shinozuka, Takaaki (1578) | Lost 0-2 | -191605 |
| top | average opponent: 1643record: 4-5-1 | new rating: 1605 | ||
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1625 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 13 | Kimura, Yoshihiro (1505) | Won 2-1 | +151640 |
| 3sealed | 48 | Matousek, Pavel (1772) | Won 2-1 | +211661 |
| 4sealed | 27 | Yasooka, Shota (1733) | Lost 0-2 | -171644 |
| 5sealed | 80 | Taniguchi, Yuusuke (1499) | Won 2-1 | +161660 |
| 6sealed | 26 | Nonaka, Kentarou (1653) | Lost 1-2 | -191641 |
| 7sealed | 53 | Takemoto, Shintarou (1539) | Lost 1-2 | -191622 |
| top | average opponent: 1617record: 3-3 | new rating: 1622 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1671 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 109 | Sakai, Yuuto (1559) | Lost 1-2 | -201651 |
| 3sealed | 203 | Senou, Yoshiyuki (1601) | Won 2-1 | +171668 |
| 4sealed | 144 | Mizuno, Akimitsu (1398) | Lost 0-2 | -231645 |
| 5sealed | 196 | Ono, Teppei (1500) | Lost 0-2 | -201625 |
| top | average opponent: 1515record: 1-3 | new rating: 1625 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1668 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 64 | Niimi, Kiyoaki (1565) | Lost 1-2 | -201648 |
| 4standard | 188 | Fujino, Satoshi (1429) | Won 2-1 | +141662 |
| 5standard | 91 | Nakai, Takuto (1537) | Won 2-0 | +161678 |
| 6standard | 68 | Tamada, Ryoichi (1500) | Lost 1-2 | -211657 |
| 7standard | 132 | Nakatani, Haruki (1592) | Lost 0-2 | -201637 |
| 8standard | 169 | Mukuno, Yuuji (1649) | Won 2-1 | +191656 |
| 9standard | 144 | Iyanaga, Junya (1515) | Won 2-1 | +151671 |
| top | average opponent: 1541record: 4-3 | new rating: 1671 | ||
| Pro Tour San Diego 2004 (DST draft) | starting rating: 1700 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 22 | Wiegersma, Jelger (1944) | Lost 0-2 | -141686 |
| 2draft | 89 | Harvey, Eugene (1920) | Lost 0-2 | -141672 |
| 3draft | 145 | Kaneko, Masami (1529) | Won 2-1 | +161688 |
| 4draft | 30 | Linde, Matt (1846) | Lost 0-2 | -151673 |
| 5draft | 119 | Varriale, Ernesto Jacopo (1464) | Lost 0-2 | -221651 |
| 6draft | 105 | Shimizu, Hajime (1595) | Won 2-0 | +171668 |
| top | average opponent: 1716record: 2-4 | new rating: 1668 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1603 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 3 | Ikeda, Kei (1645) | Lost 0-2 | -171586 |
| 5sealed | 31 | Kataoka, Asami (1687) | Won 2-1 | +201606 |
| 6sealed | 26 | Takagi, Takeshi (1658) | Won 2-1 | +191625 |
| 7sealed | 16 | Suzuki, Masatsuna (1723) | Lost 0-2 | -161609 |
| 8sealed | 40 | Hiraga, Mikio (1529) | Won 2-1 | +161625 |
| 9draft | 18 | Satou, Kenji (1600) | Won 2-0 | +181643 |
| 10draft | 12 | Sasaki, Yusuke(Miyagi) (1607) | Lost 1-2 | -191624 |
| 11draft | 24 | Yoshikawa, Yuusuke (1672) | Won 2-0 | +191643 |
| 12draft | 27 | Shibuya, Tsutomu (1599) | Won 2-0 | +171660 |
| 13draft | 5 | Ueda, Katsuya (1742) | Won 2-1 | +201680 |
| 14draft | 19 | Ibamoto, Masami (1798) | Won 2-0 | +201700 |
| top | average opponent: 1660record: 8-3 | new rating: 1700 | ||
| Pro Tour Kobe 2004 (Mirrodin block) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 43 | Martikainen, Pekka (1494) | Won 2-1 | +161597 |
| 2block | 16 | Taniguchi, Tomoya (1731) | Lost 1-2 | -151582 |
| 3block | 81 | Herzog, Nicolai (1975) | Lost 1-2 | -111571 |
| 4block | 67 | Ueno, Kazuki (1764) | Lost 1-2 | -151556 |
| 5block | 106 | Betti, Alessandro (1676) | Won 2-0 | +201576 |
| 6block | 91 | Oiso, Masashi (1877) | Won 2-0 | +241600 |
| 7block | 56 | Siron, Geoffrey (1703) | Lost 1-2 | -161584 |
| 8block | 66 | Doco, Geoffrey (1680) | Won 2-1 | +191603 |
| top | average opponent: 1737record: 4-4 | new rating: 1603 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 51 | Sugita, Toshihiko (1515) | Won 2-0 | +191447 |
| 2extended | 8 | Kataoka, Asami (1638) | Won 2-1 | +221469 |
| 3extended | 7 | Nitta, Tomoaki (1512) | Won 2-0 | +181487 |
| 4extended | 49 | Arita, Ryuichi (1676) | Won 2-1 | +221509 |
| 5extended | 24 | Mihara, Makihito (1707) | Won 2-1 | +211530 |
| 6extended | 5 | Nakamura, Satoshi (1773) | Lost 0-2 | -131517 |
| 7extended | 22 | Ueta, Hiroki (1583) | Lost 0-2 | -171500 |
| 8extended | 35 | Maekawa, Takuya (1497) | Won 2-0 | +181518 |
| 9extended | 20 | Kurihara, Shingou (1620) | Won 2-0 | +201538 |
| 10extended | 32 | Koyama, Masashi (1545) | Draw 1-1 | 01538 |
| 11extended | 27 | Yaguchi, Hiroaki (1561) | Lost 0-2 | -181520 |
| 12extended | 4 | Nakazuka, Yuuki (1542) | Won 2-1 | +191539 |
| 13extended | 26 | Sugiyama, Yuya (1695) | Won 2-1 | +201559 |
| 14extended | 23 | Ibamoto, Masami (1758) | Won 2-0 | +221581 |
| top | average opponent: 1616record: 10-3-1 | new rating: 1581 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 87 | Kim, Yong-Ok (1540) | Lost 0-2 | -161420 |
| 3sealed | 200 | Nakayama, Takashi (1499) | Won 2-0 | +201440 |
| 4sealed | 99 | Niimi, Kiyoaki (1470) | Won 2-1 | +181458 |
| 5sealed | 84 | Toochika, Takayuki (1538) | Lost 1-2 | -161442 |
| 6sealed | 93 | Hara, Taketoshi (1507) | Lost 1-2 | -171425 |
| 7sealed | 127 | Nishikubo, Shogo (1537) | Lost 1-2 | -161409 |
| 8sealed | 15 | Aoki, Masanori (1453) | Won 2-1 | +191428 |
| top | average opponent: 1506record: 3-4 | new rating: 1428 | ||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 74 | Ikeda, Yasunori (1517) | Won 2-0 | +191487 |
| 3extended | 6 | Tanaka, Yoshinori (1516) | Lost 1-2 | -181469 |
| 4extended | 78 | Omori, Tomoaki (1573) | Lost 1-2 | -161453 |
| 5extended | 139 | Nagahara, Tatsuya (1499) | Lost 0-2 | -171436 |
| top | average opponent: 1526record: 1-3 | new rating: 1436 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 35 | Katayama, Tomoyuki (1552) | Won 2-0 | +191518 |
| 2sealed | 102 | Isomoto, Hirofumi (1607) | Lost 0-2 | -171501 |
| 3sealed | 147 | Yoshida, Akifumi (1500) | Lost 1-2 | -181483 |
| 4sealed | 161 | Kurisu, Takashi (1632) | Lost 0-2 | -151468 |
| top | average opponent: 1573record: 1-3 | new rating: 1468 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 195 | Okumura, Atsushi (1500) | Won 2-0 | +181518 |
| 2extended | 175 | Matsui, Kengaku (1518) | Won 2-1 | +181536 |
| 3extended | 6 | Nomura, Eiji (1464) | Lost 1-2 | -191517 |
| 4extended | 99 | Okada, Yu (1518) | Won 2-0 | +181535 |
| 5extended | 96 | Doi, Koji (1536) | Lost 1-2 | -181517 |
| 6extended | 166 | Fukushima, Ryo (1518) | Lost 0-2 | -181499 |
| 7extended | 161 | Akiba, Satoshi (1500) | Won 2-1 | +181517 |
| 8extended | 147 | Kono, Masahide (1518) | Lost 1-2 | -181499 |
| top | average opponent: 1509record: 4-4 | new rating: 1499 | ||