Katou, Keigo
Current rating: 1488
Record: 19-21
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 479 | Tomioka, Teppei (1541) | Lost 1-2 | -171469 |
| 2legacy | 557 | Osawa, Sho (1468) | Won 2-1 | +181487 |
| 3legacy | 440 | Kawasumi, Shun (1500) | Won 2-1 | +181505 |
| 4legacy | 397 | Nakamura, Yuki 8131 (1696) | Lost 1-2 | -151490 |
| 5legacy | 377 | Sasahara, Yuta (1479) | Won 2-1 | +181508 |
| 6legacy | 347 | Nakajima, Masahiro (1578) | Lost 1-2 | -161492 |
| 7legacy | 334 | Araki, Youhei (1372) | Lost 0-2 | -211471 |
| 8legacy | 398 | Kusakawa, Naoto (1378) | Won 2-0 | +171488 |
| top | average opponent: 1502record: 4-4 | new rating: 1488 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1434 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 425 | Endo, Takatomo (1425) | Won 2-0 | +181452 |
| 2legacy | 117 | Mabashi, Yuuto (1482) | Won 2-1 | +191471 |
| 3legacy | 212 | Ogasawara, Shou (1402) | Won 2-1 | +161487 |
| 4legacy | 76 | Nagao, Kengo (1805) | Lost 0-2 | -121475 |
| 5legacy | 282 | Oosawa, Syo (1584) | Won 2-1 | +201495 |
| 6legacy | 225 | Ota, Ryunosuke (1549) | Lost 0-2 | -171478 |
| 7legacy | 399 | Inagawa, Katsuya (1527) | Won 2-0 | +191497 |
| 8legacy | 134 | Maeba, Hideaki (1656) | Lost 1-2 | -151482 |
| 9legacy | 307 | Ichihara, Daichi (1548) | Won 2-0 | +191501 |
| 10legacy | 179 | Mita, Ryoichi (1512) | Won 2-1 | +181519 |
| 11legacy | 234 | Pape, Frederik (1569) | Lost 0-2 | -171502 |
| 12legacy | 278 | Shinozaki, Hiroki (1505) | Won 2-1 | +181520 |
| 13legacy | 192 | Meguro, Masahiko (1585) | Lost 1-2 | -171503 |
| 14legacy | 230 | Kurita, Yudai (1530) | Lost 0-2 | -171486 |
| top | average opponent: 1549record: 8-6 | new rating: 1486 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 625 | Motoshi, Takahashi (1463) | Lost 1-2 | -181454 |
| 2sealed | 810 | Fujii, Mikiya (1356) | Lost 0-2 | -201434 |
| top | average opponent: 1409record: 0-2 | new rating: 1434 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 631 | Horie, Yoshiaki (1435) | Lost 1-2 | -181449 |
| 2legacy | 773 | Miyai, Yoshiaki (1525) | Won 2-0 | +191468 |
| 3legacy | 802 | Ueno, Tomoya (1657) | Lost 0-2 | -151453 |
| 4legacy | 834 | Narita, Mizuki (1482) | Won 2-1 | +191472 |
| 5legacy | 795 | Uehira, Shinichi (1462) | Won 2-1 | +181490 |
| 6legacy | 772 | Kanetomi, Hidetaka (1519) | Lost 1-2 | -181472 |
| top | average opponent: 1513record: 3-3 | new rating: 1472 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 743 | Honjo, Kiyotaka (1500) | Won 2-1 | +191499 |
| 2modern | 875 | Nishida, Keisuke (1518) | Won 2-0 | +181517 |
| 3modern | 886 | Hayashi, Shinsuke (1842) | Lost 0-2 | -121505 |
| 4modern | 850 | Mamiya, Takumi (1440) | Lost 0-2 | -191486 |
| 5modern | 1087 | Kobayashi, Yuuki (1463) | Lost 0-2 | -191467 |
| top | average opponent: 1553record: 2-3 | new rating: 1467 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 100 | Furuichi, Takenori (1632) | Won 2-1 | +201520 |
| 2standard | 117 | Tsuchiya, Yoshihiro (1413) | Won 2-0 | +161536 |
| 3standard | 26 | Uzawa, Yuichi (1531) | Lost 1-2 | -181518 |
| 4standard | 227 | Osanai, Takashi (1439) | Lost 1-2 | -191499 |
| 5standard | 215 | Ishino, Takuya5590 (1466) | Lost 1-2 | -191480 |
| top | average opponent: 1496record: 2-3 | new rating: 1480 | ||