Matubayashi, Kazunori
Current rating: 1591
Record: 38-28-1
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1617 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 635 | Sakai, Toshinori (1599) | Won 2-0 | +181635 |
| 2sealed | 234 | Iwamoto, Takeshi (1476) | Won 2-1 | +151650 |
| 3sealed | 498 | Matsuyama, Satoshi (1626) | Lost 0-2 | -181632 |
| 4sealed | 550 | Yakushi, Hideki (1542) | Lost 0-2 | -201612 |
| 5sealed | 783 | Suzuki, Yuga (1442) | Lost 0-2 | -211591 |
| top | average opponent: 1537record: 2-3 | new rating: 1591 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1628 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 431 | Yamanaka, Kousuke (1570) | Won 2-0 | +171645 |
| 2sealed | 292 | Sakai, Tatsuya (1522) | Lost 0-2 | -201625 |
| 3sealed | 553 | Kitahara, Junya (1419) | Lost 0-2 | -221603 |
| 4sealed | 792 | Hamamoto, Shouta (1445) | Won 2-1 | +151618 |
| 5sealed | 757 | Nagafuchi, Ei (1437) | Won 2-1 | +151633 |
| 6sealed | 472 | Boku, Takashi (1763) | Lost 1-2 | -161617 |
| top | average opponent: 1526record: 3-3 | new rating: 1617 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1675 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 287 | Akai, Satoshi (1617) | Won 2-0 | +171692 |
| 4standard | 129 | Mita, Ryoichi (1534) | Lost 1-2 | -211671 |
| 5standard | 362 | Saito, Toru (1616) | Won 2-0 | +171688 |
| 6standard | 251 | Hosoi, Ippei (1722) | Won 2-0 | +191707 |
| 7standard | 219 | Seki, Kentaro (1563) | Won 2-0 | +151722 |
| 8standard | 93 | Ichikawa, Norikazu (1630) | Lost 0-2 | -191703 |
| 9standard | 122 | Yamada, Yosuke (1543) | Won 2-1 | +151718 |
| 10standard | 129 | Katou, Masaya (1460) | Lost 0-2 | -231695 |
| 11standard | 236 | Kawashima, Takayuki (1505) | Lost 1-2 | -211674 |
| 12standard | 268 | Sasaki, Shou (1551) | Lost 1-2 | -201654 |
| 13standard | 320 | Sakane, Kota (1496) | Lost 0-2 | -211633 |
| 14standard | 291 | Imazawa, Junpei (1504) | Won 2-0 | +151648 |
| 15standard | 231 | Uemura, Tatsuya (1518) | Lost 1-2 | -201628 |
| top | average opponent: 1558record: 6-7 | new rating: 1628 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1611 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 106 | Tashiro, Kouhei (1587) | Won 2-1 | +181629 |
| 2standard | 508 | Ishikawa, Shouzou (1518) | Won 2-1 | +161645 |
| 3standard | 658 | Miyamoto, Akihiro (1467) | Lost 0-2 | -211624 |
| 4standard | 772 | Kitahara, Hiroaki (1845) | Lost 1-2 | -141610 |
| 5standard | 1133 | Daikai, Rikiya (1525) | Won 2-1 | +161626 |
| 6standard | 504 | Nakabe, Ikki (1519) | Won 2-0 | +161642 |
| 7standard | 373 | Manabe, Hirokazu (1455) | Won 2-0 | +151657 |
| 8standard | 225 | Yanagawa, Takahiro (1559) | Won 2-0 | +161673 |
| 9standard | 274 | Hayakawa, Sho (1536) | Lost 0-2 | -211652 |
| 10standard | 242 | Aoki, Masatugu (1547) | Won 2-1 | +171669 |
| 11standard | 182 | Shimizu, Haruki (1615) | Won 2-1 | +171686 |
| 12standard | 195 | Saijo, Yuichi (1623) | Won 2-0 | +161702 |
| 13standard | 111 | Shiroma, Hiroshi (1545) | Lost 1-2 | -201682 |
| 14standard | 162 | Nakanishi, Yutaka (1560) | Lost 0-2 | -211661 |
| 15standard | 209 | Schwenk, Ryan (1435) | Won 2-0 | +141675 |
| top | average opponent: 1556record: 10-5 | new rating: 1675 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1658 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 245 | Tada, Mitsuhiro (1540) | Lost 1-2 | -201638 |
| 4standard | 658 | Akabane, Shu (1403) | Lost 0-2 | -221616 |
| 5standard | 602 | Tachibana, Korechika (1504) | Won 2-0 | +161632 |
| 6standard | 500 | Umeki, Ryo (1505) | Lost 1-2 | -211611 |
| top | average opponent: 1488record: 1-3 | new rating: 1611 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1621 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2255 | Kouhata, Toshiya (1482) | Won 2-1 | +151636 |
| 2sealed | 2025 | Aoki, Masahiro (1600) | Won 2-1 | +181654 |
| 3sealed | 2128 | Muralitheran, Hari (1439) | Won 2-0 | +141668 |
| 4sealed | 2053 | Tanaka, Akira (1713) | Lost 1-2 | -171651 |
| 5sealed | 2202 | Fuchita, Shouhei (1639) | Lost 0-2 | -191632 |
| 6sealed | 2224 | Azuma, Tatsuya (1508) | Lost 0-2 | -201612 |
| 7sealed | 2234 | Yoshida, Keitaro (1496) | Won 2-1 | +161628 |
| 8sealed | 2138 | Tanaka, Kozue (1508) | Won 2-1 | +161644 |
| 9sealed | 2097 | Yoshino, Satoshi (1425) | Won 2-1 | +141658 |
| top | average opponent: 1535record: 6-3 | new rating: 1658 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 922 | Horibe, Satoshi (1395) | Draw 1-1 | -21498 |
| 2sealed | 869 | Katakai, Masaki (1499) | Won 2-1 | +181516 |
| 3sealed | 838 | Shikibu, Hayato (1518) | Won 2-1 | +181534 |
| 4sealed | 728 | Ogata, Nobuhiko (1491) | Won 2-1 | +171551 |
| 5sealed | 664 | Higono, Naoki (1539) | Won 2-1 | +181569 |
| 6sealed | 632 | Kokubun, Hiroshi (1671) | Won 2-1 | +201589 |
| 7sealed | 615 | Kawakami, Tetsuya (1584) | Won 2-1 | +181607 |
| 8sealed | 608 | Saegusa, Nobuyuki (1611) | Lost 0-2 | -181589 |
| 9sealed | 631 | Oikawa, Hakudou (1595) | Won 2-0 | +181607 |
| 10draft | 102 | Okudera, Taichi (1588) | Lost 0-2 | -181589 |
| 11draft | 46 | Kitazawa, Kentarou (1594) | Won 2-1 | +181607 |
| 12draft | 8 | Akita, Naoto (1819) | Won 2-0 | +221629 |
| 13draft | 48 | Motomura, Tomoya (1756) | Lost 0-2 | -161613 |
| 14draft | 58 | Fujimoto, Kenta (1604) | Won 2-1 | +181631 |
| 15draft | 35 | Watanabe, Yuuya (2106) | Lost 1-2 | -101621 |
| top | average opponent: 1625record: 10-4-1 | new rating: 1621 | ||