Son, Kii
Current rating: 1507
Record: 71-72-1
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- 2020
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 16 | Yoshino, Kohei (1751) | Won 2-0 | +231513 |
| 4pioneer | 39 | Kimura, Kosuke (1693) | Won 2-1 | +211534 |
| 5pioneer | 52 | Michibata, Tatsuya (1613) | Won 2-1 | +201554 |
| 6pioneer | 24 | Imai, Yuutarou (1542) | Won 2-0 | +181572 |
| 7pioneer | 14 | Takeuchi, Ryota (1766) | Lost 1-2 | -151557 |
| 8pioneer | 79 | Takata, Kouhei (1662) | Lost 1-2 | -161541 |
| 9pioneer | 168 | Oginuma, Kiichi (1607) | Lost 0-2 | -171524 |
| 10pioneer | 164 | Hase, Daigo (1564) | Lost 0-2 | -171507 |
| top | average opponent: 1650record: 4-4 | new rating: 1507 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 436 | Fukuda, Yuuki (1534) | Lost 1-2 | -191524 |
| 4standard | 552 | Goto, Yuki (1502) | Lost 1-2 | -181506 |
| 5standard | 655 | Matsuyama, Ryousuke (1642) | Lost 0-2 | -161490 |
| top | average opponent: 1559record: 0-3 | new rating: 1490 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1573 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 501 | Takeda, Yuki 3088 (1512) | Won 2-1 | +171590 |
| 4sealed | 257 | Shimamura, Kazushige (1621) | Lost 1-2 | -171573 |
| 5sealed | 354 | Koshiishi, Tadahito (1564) | Lost 1-2 | -181555 |
| 6sealed | 553 | Zhuang, Kai (1887) | Lost 1-2 | -121543 |
| top | average opponent: 1646record: 1-3 | new rating: 1543 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1631 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 62 | Itou, Motoki (1564) | Lost 1-2 | -191612 |
| 4standard | 393 | Inagaki, Yukihiro (1556) | Lost 0-2 | -191593 |
| 5standard | 705 | Tsubira, Yuuya (1500) | Lost 0-2 | -201573 |
| top | average opponent: 1540record: 0-3 | new rating: 1573 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1657 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 469 | Hanano, Tetsuaki (1483) | Won 2-1 | +151672 |
| 4standard | 211 | Higuchi, Jun (1709) | Lost 0-2 | -171655 |
| 5standard | 324 | Izumisawa, Ryo (1472) | Lost 1-2 | -221633 |
| 6standard | 708 | Tsutsumi, Takuya (1465) | Won 2-1 | +151648 |
| 7standard | 502 | Kudo, Koichi (1708) | Lost 1-2 | -171631 |
| top | average opponent: 1567record: 2-3 | new rating: 1631 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1667 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 517 | Sakuta, Akira (1452) | Lost 1-2 | -221645 |
| 4sealed | 570 | Takakura, Shinichirou (1460) | Won 2-1 | +151660 |
| 5sealed | 337 | Okubo, Hiroshi (1491) | Won 2-0 | +151675 |
| 6sealed | 72 | Asaumi, Hiroki (1645) | Lost 1-2 | -181657 |
| 7sealed | 391 | Cho, Jeong Woo (1806) | Won 2-1 | +201677 |
| 8sealed | 250 | Fujimoto, Shun (1559) | Lost 1-2 | -201657 |
| top | average opponent: 1569record: 3-3 | new rating: 1657 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1695 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 334 | Inui, Takashi (1684) | Lost 1-2 | -181677 |
| 4sealed | 679 | Suematsu, Takaaki (1972) | Lost 1-2 | -131664 |
| 5sealed | 832 | Noguchi, Takeshi (1428) | Won 2-1 | +141678 |
| 6sealed | 567 | Nam, Sung Wook (1649) | Won 2-0 | +181696 |
| 7sealed | 264 | Tamura, Shunpei (1525) | Won 2-0 | +151711 |
| 8sealed | 189 | Mita, Ryoichi (1555) | Lost 1-2 | -211690 |
| 9sealed | 489 | Oshima, Shimpei (1446) | Lost 0-2 | -231667 |
| top | average opponent: 1608record: 3-4 | new rating: 1667 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1677 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 378 | Hattori, Kazuki (1642) | Won 2-1 | +171694 |
| 4standard | 26 | Nakamichi, Daisuke (1957) | Won 2-1 | +231717 |
| 5standard | 106 | Murase, Hiroshi (1832) | Won 2-0 | +201737 |
| 6standard | 50 | Mochiki, Kazuto (1795) | Lost 0-2 | -171720 |
| 7standard | 154 | Hirayama, Rei (1550) | Won 2-1 | +151735 |
| 8standard | 72 | Maurri, Filippo (1816) | Won 2-1 | +191754 |
| 9standard | 59 | Yukuhiro, Ken (2137) | Lost 1-2 | -111743 |
| 10standard | 130 | Saida, Toshihiro (1723) | Won 2-1 | +181761 |
| 11standard | 83 | Kutsuna, Yohei (1562) | Lost 1-2 | -221739 |
| 12standard | 139 | Kwanchaitunya, Sakditat (1640) | Lost 1-2 | -201719 |
| 13standard | 188 | Sia, Pei Ren (1661) | Won 2-0 | +171736 |
| 14standard | 152 | Atsuji, Makoto (1530) | Lost 0-2 | -221714 |
| 15standard | 144 | Kobayashi, Atsumu (1652) | Lost 0-2 | -191695 |
| top | average opponent: 1731record: 7-6 | new rating: 1695 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 652 | Furuse, Noriaki (1569) | Won 2-0 | +181581 |
| 4standard | 5 | Ito, Shungo (1558) | Won 2-1 | +181599 |
| 5standard | 133 | Ueda, Ryo (1586) | Lost 0-2 | -191580 |
| 6standard | 184 | Arai, Tadayuki (1580) | Won 2-0 | +181598 |
| 7standard | 87 | Jinno, Kaname (1343) | Won 2-1 | +141612 |
| 8standard | 142 | Mizutani, Yosuke (1748) | Won 2-1 | +201632 |
| 9standard | 75 | Suzuki, Masahiro (1703) | Won 2-1 | +201652 |
| 10standard | 38 | Kojima, Tatuya (1690) | Lost 1-2 | -181634 |
| 11standard | 51 | Sun, Bo (1951) | Won 2-0 | +241658 |
| 12standard | 64 | Urase, Ryosuke (1747) | Lost 0-2 | -171641 |
| 13standard | 120 | Maruyama, Koji (1638) | Won 2-0 | +181659 |
| 14standard | 61 | Yamamoto, Tetsuji (1624) | Won 2-0 | +181677 |
| 15standard | 37 | Nakajima, Chikara (1854) | ID | 01677 |
| top | average opponent: 1661record: 9-3-1 | new rating: 1677 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 473 | Nakahara, Shuichi (1707) | Lost 1-2 | -171605 |
| 4sealed | 693 | Jiang, Yida (1486) | Lost 0-2 | -201585 |
| 5sealed | 917 | Sakamoto, Keisuke (1499) | Won 2-0 | +171602 |
| 6sealed | 637 | Kawakami, Yoshinobu (1517) | Lost 1-2 | -201582 |
| 7sealed | 628 | Frej Hoffman, Emil (1522) | Lost 0-2 | -191563 |
| top | average opponent: 1546record: 1-4 | new rating: 1563 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1645 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 417 | Shiba, Yoshimasa (1507) | Lost 0-2 | -201625 |
| 4standard | 745 | Nakae, Syu (1522) | Won 2-1 | +161641 |
| 5standard | 280 | Moriya, Takeshi (1472) | Lost 1-2 | -211620 |
| 6standard | 542 | Kanou, Takamichi (1520) | Won 2-1 | +161636 |
| 7standard | 242 | Kawai, Hiroki1988 (1553) | Won 2-0 | +161652 |
| 8standard | 222 | Takahashi, Yuta (2068) | Lost 1-2 | -101642 |
| 9standard | 325 | Hashimoto, Keisuke (1537) | Lost 1-2 | -201622 |
| top | average opponent: 1597record: 3-4 | new rating: 1622 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 99 | Sakurabayashi, Gaku (1516) | Won 2-1 | +171573 |
| 4sealed | 108 | Horie, Takaaki (1550) | Won 2-0 | +181591 |
| 5sealed | 47 | Takahashi, Kazuya (1546) | Won 2-0 | +171608 |
| 6sealed | 8 | Hibino, Yasutaka (1589) | Won 2-1 | +181626 |
| 7sealed | 10 | Rosinski, Dennis (1723) | Won 2-1 | +201646 |
| 8sealed | 5 | Kitao, Soujyu (1659) | Lost 1-2 | -181628 |
| 9sealed | 15 | U, Kashin (1544) | Lost 1-2 | -201608 |
| 10draft | 152 | Sekine, Naoto (1749) | Lost 0-2 | -151593 |
| 11draft | 80 | Notake, Shozaburo (1578) | Won 2-0 | +181611 |
| 12draft | 158 | Usui, Haruki (1637) | Lost 0-2 | -181593 |
| 13draft | 158 | Ji, Kanghyun (1556) | Won 2-0 | +171610 |
| 14draft | 54 | Kamai, Daisuke (1600) | Won 2-1 | +181628 |
| 15draft | 81 | Sekizawa, Junpei (1571) | Won 2-0 | +171645 |
| top | average opponent: 1601record: 9-4 | new rating: 1645 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 26 | Suzuki, Nobuya (1500) | Won 2-1 | +191501 |
| 4sealed | 33 | Fong, Chun Ho (1488) | Won 2-1 | +171518 |
| 5sealed | 47 | Sugioka, Noriyuki (1582) | Won 2-0 | +201538 |
| 6sealed | 19 | Iwase, Akira (1612) | Won 2-1 | +191557 |
| 7sealed | 10 | Oomura, Takashi (1649) | Won 2-1 | +201577 |
| 8sealed | 5 | Ishida, Hiroshi (1706) | Lost 1-2 | -161561 |
| 9sealed | 19 | Tsai, Kai-an (1727) | Won 2-0 | +211582 |
| 10draft | 98 | Ichige, Masato (1647) | Won 2-0 | +191601 |
| 11draft | 73 | Nakano, Shinji (1634) | Lost 0-2 | -171584 |
| 12draft | 35 | Moriya, Daisuke (1783) | Lost 0-2 | -151569 |
| 13draft | 21 | Ishida, Hiroshi (1692) | Won 2-0 | +201589 |
| 14draft | 61 | Sakai, Ryou (1596) | Lost 0-2 | -171572 |
| 15draft | 47 | Shiraishi, Masaharu (1716) | Lost 1-2 | -161556 |
| top | average opponent: 1641record: 8-5 | new rating: 1556 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 700 | Taniguchi, Kouhei (1518) | Lost 1-2 | -181520 |
| 3sealed | 760 | Obata, Maiko (1453) | Lost 1-2 | -191501 |
| 4sealed | 802 | Konta, Takumi (1479) | Lost 0-2 | -191482 |
| top | average opponent: 1484record: 0-3 | new rating: 1482 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 690 | Shoji, Kenta (1533) | Lost 1-2 | -181491 |
| 4standard | 741 | U, Kashin (1413) | Won 2-1 | +171508 |
| 5standard | 626 | Ishihara, Jun (1671) | Won 2-0 | +211529 |
| 6standard | 539 | Sakigawara, Yuhei (1536) | Won 2-1 | +181547 |
| 7standard | 570 | Yoshihara, Tomoki (1497) | Won 2-0 | +171564 |
| 8standard | 531 | Yokokura, Takeshi (1635) | Won 2-1 | +191583 |
| 9standard | 622 | Sano, Masahiko (1616) | Lost 0-2 | -171566 |
| 10standard | 98 | Harada, Toshiyuki (1754) | Won 2-1 | +211587 |
| 11standard | 36 | Kariya, Kazuki (1599) | Lost 0-2 | -181569 |
| 12standard | 62 | Okuma, Naoki (1627) | Lost 0-2 | -161553 |
| 13standard | 82 | Wada, Yuki (1782) | Lost 1-2 | -141539 |
| 14standard | 87 | Abe, Yuji (1552) | Won 2-1 | +181557 |
| 15standard | 68 | Hasegawa, Takahiro (1521) | Lost 1-2 | -191538 |
| top | average opponent: 1595record: 7-6 | new rating: 1538 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 125 | Mizutani, Yuki (1454) | Lost 1-2 | -201541 |
| 3standard | 465 | Imai, Satoshi (1721) | Won 2-0 | +221563 |
| 4standard | 301 | Itou, Hayato (1556) | Lost 1-2 | -191544 |
| 5standard | 457 | Nakao, Munenari (1617) | Lost 1-2 | -161528 |
| 6standard | 433 | Misaka, Naoyuki (1476) | Lost 1-2 | -191509 |
| top | average opponent: 1565record: 1-4 | new rating: 1509 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 33 | Miyata, Yuuya (1545) | Lost 0-2 | -181505 |
| 3sealed | 224 | Saito, Tomoya (1617) | Won 2-1 | +201525 |
| 4sealed | 151 | Arai, Yusuke (1518) | Won 2-0 | +181543 |
| 5sealed | 200 | Chou, Gyou (1499) | Won 2-1 | +171560 |
| 6sealed | 123 | Fujimoto, Yosuke (1521) | Lost 0-2 | -191541 |
| 7sealed | 99 | Ikebata, Ryou (1519) | Won 2-1 | +181559 |
| 8sealed | 254 | Moriya, Daisuke (1658) | Won 2-1 | +201579 |
| 9sealed | 227 | Kudou, Toshio (1605) | Lost 0-2 | -181561 |
| top | average opponent: 1560record: 5-3 | new rating: 1561 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 363 | Ookubo, Hironobu (1476) | Won 2-1 | +181499 |
| 3standard | 157 | Yotsumoto, Yuki (1866) | Won 2-1 | +241523 |
| 4standard | 22 | Tateyama, Eiji (1459) | Won 2-1 | +171540 |
| 5standard | 43 | Okada, Naoya (1476) | Lost 0-2 | -191521 |
| 6standard | 149 | Maeda, Lucio (1637) | Won 2-1 | +201541 |
| 7standard | 72 | Uemoto, Takahiro (1528) | Won 2-0 | +181559 |
| 8standard | 56 | Jo, Bunkun (1534) | Lost 0-2 | -181541 |
| 9standard | 97 | Okada, Yoshikazu (1544) | Lost 1-2 | -181523 |
| top | average opponent: 1565record: 5-3 | new rating: 1523 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 255 | Myrenberg, Eskil (1601) | Won 2-0 | +201520 |
| 3sealed | 58 | Yamauchi, Takashi (1591) | Draw 1-1 | +11521 |
| 4sealed | 155 | Yokotsuka, Yu (1506) | Won 2-0 | +181539 |
| 5sealed | 77 | Machida, Takatoshi (1410) | Lost 0-2 | -201519 |
| 6sealed | 168 | Mohd Nasir, Mohd Afiq (1513) | Won 2-1 | +171536 |
| 7sealed | 100 | Tanaka, Akira (1542) | Lost 1-2 | -171519 |
| 8sealed | 175 | Okumura, Noriaki (1431) | Lost 0-2 | -201499 |
| 9sealed | 169 | Takai, Hiroaki (1509) | Lost 0-2 | -181481 |
| top | average opponent: 1513record: 3-4-1 | new rating: 1481 | ||