Tazawa, Masayuki
Current rating: 1644
Record: 29-29 (GP) / 9-7 (professional)
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1689 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 366 | Oda, Kazuya (1534) | Lost 0-2 | -211668 |
| 4pioneer | 544 | Yamazaki, Takayoshi (1372) | Won 2-0 | +131681 |
| 5pioneer | 229 | Oohashi, Toshiyuki (1729) | Lost 0-2 | -171664 |
| 6pioneer | 451 | Mori, Yuuki (1566) | Lost 1-2 | -201644 |
| top | average opponent: 1550record: 1-3 | new rating: 1644 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1729 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 21 | Kositaporn, Nonthakorn (1686) | Lost 0-2 | -181711 |
| 4sealed | 402 | Izumisawa, Ryo (1528) | Lost 0-2 | -221689 |
| top | average opponent: 1607record: 0-2 | new rating: 1689 | ||
| Mythic Championship IV (modern) | starting rating: 1651 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 161 | Orrmons, Kale (1715) | Won 2-1 | +191670 |
| 2draft | 186 | Sochurek, Petr (2150) | Lost 1-2 | -101660 |
| 3draft | 207 | Prinz, Kristof (1853) | Won 2-1 | +221682 |
| 4modern | 39 | Sato, Rei (1756) | Won 2-1 | +191701 |
| 5modern | 54 | Hellauer, Erich (1553) | Won 2-1 | +151716 |
| 6modern | 10 | Giovannetti, Simone (1832) | Lost 1-2 | -151701 |
| 7modern | 30 | Fournier, Daniel (1933) | Won 2-1 | +221723 |
| 8modern | 39 | Garcia Gonzalez, Sergio (2028) | Lost 0-2 | -131710 |
| 9draft | 47 | Rizzi, Mattia (2006) | Lost 0-2 | -131697 |
| 10draft | 47 | Rodriguez, Eduardo (1547) | Won 2-0 | +161713 |
| 11draft | 48 | Glogowski, Piotr (2053) | Lost 1-2 | -121701 |
| 12modern | 96 | Black, Samuel (1888) | Lost 1-2 | -151686 |
| 13modern | 96 | Prinzell, Johan (1809) | Won 2-1 | +201706 |
| 14modern | 101 | Cochran, Hunter (1995) | Won 2-1 | +231729 |
| 15modern | 72 | Sadovnic, Alter (1527) | Won 2-0 | +151744 |
| 16modern | 44 | Kuisma, Matti (1944) | Lost 1-2 | -151729 |
| top | average opponent: 1849record: 9-7 | new rating: 1729 | ||
| Grand Prix Taipei 2019 (WAR standard) | starting rating: 1683 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 108 | Tan, Xiangsheng (1394) | Won 2-1 | +131696 |
| 4standard | 54 | Lin, Ming Yi (1662) | Lost 1-2 | -191677 |
| 5standard | 204 | Lu, Pengjie (1697) | Lost 0-2 | -171660 |
| 6standard | 177 | Chee, Howe Ming (1369) | Won 2-0 | +131673 |
| 7standard | 136 | Lee, Seungho (1473) | Lost 1-2 | -221651 |
| top | average opponent: 1519record: 2-3 | new rating: 1651 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1684 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 528 | Iseya, Akihiro (1518) | Lost 1-2 | -211663 |
| 4modern | 501 | Takesue, Chikara (1742) | Won 2-0 | +201683 |
| 5modern | 470 | Nakano, Akinori (1624) | Lost 0-2 | -191664 |
| 6modern | 594 | Senba, Kotaro (1918) | Won 2-0 | +221686 |
| 7modern | 475 | Yoon, Chanwoong (1534) | Won 2-1 | +151701 |
| 8modern | 325 | Gondo, Kosuke (1694) | Lost 0-2 | -181683 |
| top | average opponent: 1672record: 3-3 | new rating: 1683 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 170 | Okai, Toshiki (1926) | Won 2-0 | +261509 |
| 4standard | 16 | Takimura, Kazuyuki (1941) | Lost 1-2 | -111498 |
| 5standard | 281 | Ueda, Tadahiko (1609) | Won 2-1 | +201518 |
| 6standard | 145 | Taguchi, Hiroyasu (1559) | Lost 0-2 | -171501 |
| 7standard | 305 | Tanaka, Yasuhiro (1676) | Won 2-0 | +211522 |
| 8standard | 303 | Oginuma, Kiichi (1579) | Won 2-1 | +191541 |
| 9standard | 122 | Yoshihara, Shouta (1615) | Won 2-0 | +191560 |
| 10standard | 62 | Nishiura, Ryosuke (1744) | Won 2-1 | +221582 |
| 11standard | 65 | Tobo, Hayato (1641) | Won 2-1 | +191601 |
| 12standard | 35 | Takahashi, Ryo 8120 (1701) | Won 2-0 | +201621 |
| 13standard | 20 | Schiber, Christopher (1872) | Won 2-0 | +221643 |
| 14standard | 18 | Yang, Eunje (1669) | Won 2-1 | +181661 |
| 15standard | 9 | Kim, Chang Kyum (1927) | Won 2-0 | +231684 |
| top | average opponent: 1728record: 11-2 | new rating: 1684 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 429 | Makino, Takashi (1679) | Won 2-0 | +221497 |
| 4standard | 226 | Teramoto, Tsubasa (1498) | Lost 0-2 | -181479 |
| 5standard | 417 | Kinoshita, Kazuya (1456) | Won 2-1 | +181497 |
| 6standard | 307 | Hirano, Mikita (1733) | Lost 1-2 | -141483 |
| top | average opponent: 1592record: 2-2 | new rating: 1483 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1432 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 458 | Syed, Zan (2079) | Won 2-0 | +281460 |
| 4sealed | 194 | Shindo, Yuto (1457) | Lost 0-2 | -181442 |
| 5sealed | 209 | Nakamura, Souta (1822) | Won 2-0 | +251467 |
| 6sealed | 256 | Takenaka, Takumi (1742) | Won 2-1 | +231490 |
| 7sealed | 188 | Matsushita, Junnya (1830) | Lost 1-2 | -121478 |
| 8sealed | 326 | Nakashima, Atsushi (1564) | Won 2-0 | +191497 |
| 9sealed | 96 | Ikeda, Masahito (1618) | Lost 0-2 | -151482 |
| 10draft | 714 | Tobisawa, Takenori (1509) | Won 2-1 | +181500 |
| 11draft | 761 | Yagawa, Masataka (1640) | Lost 0-2 | -151485 |
| 12draft | 752 | Iwasaki, Daisuke (1526) | Won 2-1 | +181503 |
| 13draft | 726 | Okuno, Ryohei (1645) | Lost 1-2 | -151488 |
| 14draft | 715 | Usui, Haruki (1804) | Lost 0-2 | -131475 |
| top | average opponent: 1686record: 6-6 | new rating: 1475 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 343 | Nakamura, Koutarou (1500) | Lost 1-2 | -171430 |
| 3modern | 978 | Baba, Shoma (1499) | Won 2-0 | +191449 |
| 4modern | 833 | Ikeda, Ippei (1502) | Lost 1-2 | -171432 |
| top | average opponent: 1500record: 1-2 | new rating: 1432 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 222 | Yoshihara, Shouta (1482) | Won 2-1 | +181483 |
| 2legacy | 421 | Katamine, Kentarou (1431) | Lost 0-2 | -191464 |
| 3legacy | 940 | Maruyama, Masaaki (1462) | Won 2-0 | +181482 |
| 4legacy | 610 | Tokuda, Shin'Yuki (1514) | Lost 0-2 | -181464 |
| 5legacy | 756 | Wada, Kousuke (1483) | Lost 1-2 | -171447 |
| top | average opponent: 1474record: 2-3 | new rating: 1447 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 27 | Mori, Tatsuki (1518) | Won 2-1 | +181518 |
| 3standard | 166 | Hasegawa, Shinya (1518) | Lost 1-2 | -181500 |
| 4standard | 199 | Oonishi, Tatsuya (1498) | Lost 0-2 | -181482 |
| 5standard | 301 | Masuda, Yuusuke (1497) | Lost 1-2 | -171465 |
| top | average opponent: 1508record: 1-3 | new rating: 1465 | ||