Kato, Hidekazu
Current rating: 1462
Record: 24-35-5
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1421 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 353 | Nakanishi, Kota (1336) | Won 2-0 | +171438 |
| 4pioneer | 173 | Kawabata, Yuji (1820) | Won 2-1 | +241462 |
| 5pioneer | 23 | Fujii, Yuusaku (1478) | Won 2-0 | +181480 |
| 6pioneer | 7 | Hirose, Yutaka (1356) | Won 2-0 | +161496 |
| 7pioneer | 20 | Cho, Jeong Woo (1773) | Draw 1-1 | +51501 |
| 8pioneer | 14 | Kawano, Junichi (1726) | Lost 0-2 | -141487 |
| 9pioneer | 51 | Ajitomi, Takeshi (1637) | Lost 0-2 | -151472 |
| 10pioneer | 111 | Sano, Takumi (1602) | Won 1-0 | +201492 |
| 11pioneer | 70 | Yoshida, Akihiko (1651) | Lost 0-2 | -151477 |
| 12pioneer | 105 | Kawamura, Naoki (1518) | Lost 0-2 | -171460 |
| 13pioneer | 123 | Kitagawa, Hiroyuki (1586) | Lost 0-2 | -161444 |
| 14pioneer | 124 | Abe, Masaru (1534) | Draw 1-1 | +21446 |
| 15pioneer | 124 | Sugiyama, Kouichi (1359) | Won 2-0 | +161462 |
| top | average opponent: 1567record: 6-5-2 | new rating: 1462 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1373 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 184 | Matsuura, Shuhei (1433) | Draw 1-1 | +11374 |
| 4standard | 247 | Sano, Wataru (1537) | Won 2-0 | +211395 |
| 5standard | 108 | Sakuma, Toshimitsu (1704) | Draw 1-1 | +61401 |
| 6standard | 250 | Haruta, Takatsugu (1488) | Won 2-1 | +191420 |
| 7standard | 148 | Qian, Zhengrui (1430) | Won 2-1 | +181438 |
| 8standard | 86 | Kim, Ho-Yeon (1472) | Lost 1-2 | -171421 |
| top | average opponent: 1511record: 3-1-2 | new rating: 1421 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 442 | Kageura, Taisuke (1696) | Lost 1-2 | -141417 |
| 4standard | 593 | Katsu, Masahiro (1504) | Won 2-1 | +201437 |
| 5standard | 143 | Abe, Masahide (1380) | Lost 0-2 | -191418 |
| 6standard | 514 | Ichikawa, Takayoshi (1659) | Lost 1-2 | -141404 |
| 7standard | 531 | Xu, Yuantai (1501) | Lost 1-2 | -161388 |
| 8standard | 478 | Oshima, Yuki (1566) | Lost 1-2 | -151373 |
| top | average opponent: 1551record: 1-5 | new rating: 1373 | ||
| Grand Prix Singapore 2018 (DOM standard) | starting rating: 1390 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 77 | Lin, Mei Mei (1519) | Won 2-1 | +201410 |
| 4standard | 63 | Xu, Zihan (1508) | Won 2-1 | +201430 |
| 5standard | 9 | Leow, Shaun (1485) | Lost 0-2 | -171413 |
| 6standard | 72 | Fujimoto, Takehiro (1896) | Lost 1-2 | -101403 |
| 7standard | 105 | Gondo, Kosuke (1720) | Won 2-0 | +241427 |
| 8standard | 94 | Limsakdakul, Wathanyu (1583) | Won 1-0 | +211448 |
| 9standard | 49 | Heng, Chye Hwee (1940) | Won 2-1 | +261474 |
| 10standard | 14 | Kumagai, Riku (1955) | Lost 0-2 | -101464 |
| 11standard | 39 | Payumo, Kristoffer (1676) | Lost 1-2 | -141450 |
| 12standard | 48 | Lee, Rick Hup Beng (1705) | Lost 0-2 | -141436 |
| 13standard | 67 | Ikawa, Yoshihiko (1885) | Lost 1-2 | -101426 |
| 14standard | 65 | Yow, Kar Leng (1605) | Lost 1-2 | -151411 |
| 15standard | 62 | Liu, Zuoren (1484) | Won 2-0 | +201431 |
| top | average opponent: 1689record: 6-7 | new rating: 1431 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1392 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 745 | Agatsuma, Yuuya (1520) | Won 2-0 | +201412 |
| 2legacy | 248 | Ohasi, Masaki (1441) | Won 2-1 | +181430 |
| 3legacy | 218 | Ishii, Taisuke (1679) | Lost 0-2 | -131417 |
| 4legacy | 392 | Sakamoto, Akatoki (1555) | Won 2-0 | +201437 |
| 5legacy | 318 | Matsumura, Toshikazu (1603) | Lost 0-2 | -151422 |
| 6legacy | 564 | Kanasawa, Satohito (1515) | Lost 0-2 | -161406 |
| 7legacy | 691 | Kouki, Nakao (1506) | Lost 0-2 | -161390 |
| top | average opponent: 1546record: 3-4 | new rating: 1390 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1373 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 213 | Arita, Ryuichi (1734) | Won 2-0 | +251398 |
| 2standard | 49 | Nishimoto, Takuya (1574) | Lost 1-2 | -151383 |
| 3standard | 1011 | Nishikawa, Satoshi (1510) | Won 2-0 | +201403 |
| 4standard | 597 | Soon Yong, Yeap (1549) | Won 2-0 | +211424 |
| 5standard | 307 | Tamura, Kenji (1516) | Lost 1-2 | -171407 |
| 6standard | 461 | Mitsuyasu, Hidetoshi (1532) | Lost 0-2 | -151392 |
| top | average opponent: 1569record: 3-3 | new rating: 1392 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1368 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 833 | Obata, Ryoichi (1538) | Lost 0-2 | -151353 |
| 4sealed | 1133 | Yamamoto, Tetsuji (1472) | Won 2-1 | +201373 |
| top | average opponent: 1505record: 1-1 | new rating: 1373 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1383 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 680 | Tanaka, Daiki (Osaka) (1538) | Lost 0-2 | -151368 |
| top | record: 0-1 | new rating: 1368 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 115 | Igarashi, Yasunori (1535) | Lost 0-2 | -161383 |
| top | record: 0-1 | new rating: 1383 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1412 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 254 | Aka, Shunsuke (1679) | Lost 0-2 | -131399 |
| top | record: 0-1 | new rating: 1399 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 58 | Gotou, Seiya (1552) | Won 2-0 | +201482 |
| 2block | 203 | Satou, Takahisa (1530) | Lost 0-2 | -171465 |
| 3block | 232 | Hirai, Masumi (1475) | Lost 0-2 | -181447 |
| 4block | 323 | Yoshinaga, Yutaka (1486) | Lost 0-2 | -171430 |
| 5block | 337 | Maruyama, Shouta (1451) | Lost 1-2 | -181412 |
| top | average opponent: 1499record: 1-4 | new rating: 1412 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 276 | Sato, Kenichiro (1500) | Draw 1-1 | 01500 |
| 2standard | 220 | Nagae, Hiroyuki (1431) | Lost 0-2 | -191481 |
| 3standard | 313 | Hirooka, Hideki (1449) | Lost 0-2 | -191462 |
| top | average opponent: 1460record: 0-2-1 | new rating: 1462 | ||