Katou, Susumu
Current rating: 1602
Record: 24-17
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 52 | Taniwaki, Hikaru (1410) | Won 2-1 | +141636 |
| 2sealed | 13 | Narumi, Masaru (1307) | Won 2-0 | +121648 |
| 3sealed | 396 | Ma, Geoffrey (1538) | Lost 0-2 | -201628 |
| 4sealed | 560 | Wada, Hiroya (1649) | Won 2-1 | +191647 |
| 5sealed | 507 | Miyata, Dai (1542) | Lost 1-2 | -201627 |
| 6sealed | 514 | Nakazawa, Yosuke (1395) | Won 2-0 | +141641 |
| 7sealed | 375 | Hirata, Kosuke (1571) | Lost 0-2 | -201621 |
| 8sealed | 359 | Adachi, Naohiko (1537) | Lost 0-2 | -191602 |
| top | average opponent: 1494record: 4-4 | new rating: 1602 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 82 | Sekine, Hiroya (1500) | Won 2-0 | +161585 |
| 2sealed | 505 | Kawabata, Yuji (1560) | Won 2-0 | +181603 |
| 3sealed | 357 | Yamamoto, Keiichi (1621) | Won 2-1 | +181621 |
| 4sealed | 90 | Oota, Yusuke (1562) | Lost 0-2 | -191602 |
| 5sealed | 362 | Motomura, Shigeru (1832) | Lost 1-2 | -141588 |
| 6sealed | 682 | Arai, Ikki (1307) | Won 2-0 | +131601 |
| 7sealed | 290 | Kawatsu, Shunsuke (1580) | Won 2-1 | +181619 |
| 8sealed | 172 | Kawakami, Kazuto (1833) | Won 2-1 | +221641 |
| 9sealed | 128 | Wu, Xuan (1780) | Lost 0-2 | -161625 |
| 10draft | 761 | Ebihara, Hirotaka (1678) | Lost 1-2 | -171608 |
| 11draft | 680 | Kamo, Kyouhei (1483) | Lost 0-2 | -201588 |
| 12draft | 710 | Takahashi, Ryo 4679 (1520) | Won 2-1 | +171605 |
| 13draft | 640 | Kataoka, Hiroaki (1603) | Lost 0-2 | -181587 |
| 14draft | 623 | Iriki, Takumi (1469) | Won 2-0 | +151602 |
| 15draft | 623 | Ikeda, Takahiro (1686) | Won 2-0 | +201622 |
| top | average opponent: 1601record: 9-6 | new rating: 1622 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 269 | Miki, Kenta (1500) | Won 2-0 | +171539 |
| 2sealed | 227 | Takahashi, Toma (1518) | Lost 1-2 | -181521 |
| 3sealed | 416 | Kanda, Shigeru (1503) | Won 2-0 | +181539 |
| 4sealed | 213 | Kawabata, Yuji (1508) | Lost 1-2 | -191520 |
| 5sealed | 336 | Kawaharada, Kosaku (1513) | Won 2-1 | +181538 |
| 6sealed | 234 | Higuchi, Yasuhiro (1501) | Won 2-0 | +171555 |
| 7sealed | 133 | Shibata, Yasumasa (1400) | Won 2-0 | +151570 |
| 8sealed | 145 | Satonaka, Kentarou (1480) | Won 2-1 | +171587 |
| 9sealed | 71 | Inoue, Hiroyuki0875 (1572) | Lost 0-2 | -181569 |
| top | average opponent: 1499record: 6-3 | new rating: 1569 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 694 | Rui S., (1539) | Lost 1-2 | -171483 |
| 2sealed | 940 | Akiyama, Takashi (1681) | Lost 0-2 | -151468 |
| 3sealed | 1144 | Yoshikawa, Kazuki (1464) | Won 2-0 | +181486 |
| 4sealed | 1012 | Fujita, Kenji (1451) | Won 2-0 | +181504 |
| 5sealed | 961 | Yanagawa, Tsubasa (1536) | Won 2-1 | +181522 |
| 6sealed | 819 | Nakada, Ryo (1596) | Lost 0-2 | -171505 |
| 7sealed | 913 | Satou, Wataru (1501) | Lost 1-2 | -181487 |
| 8sealed | 1033 | Amayasu, Kazunori (1400) | Won 2-1 | +171504 |
| 9sealed | 982 | Terukastu, Kobayashi (1501) | Won 2-1 | +181522 |
| top | average opponent: 1519record: 5-4 | new rating: 1522 | ||