Katou, Takayoshi
Current rating: 1640
Record: 38-30-2
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1628 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 418 | Hamano, Kouhei (1560) | Won 2-1 | +171645 |
| 2legacy | 309 | Inoue, Nachi (1518) | Lost 0-2 | -201625 |
| 3legacy | 427 | Nephan, A. Yigit (1464) | Won 2-0 | +151640 |
| 4legacy | 303 | Itoh, Akira (1336) | Won 2-1 | +131653 |
| 5legacy | 115 | Yamamoto, Kazuaki (1490) | Won 2-1 | +151668 |
| 6legacy | 151 | Shibata, Yuuki (1566) | Lost 0-2 | -201648 |
| 7legacy | 136 | Ennis, Brenden (1506) | Won 2-0 | +151663 |
| 8legacy | 81 | Yamabe, Kazumi (1402) | Lost 0-2 | -231640 |
| top | average opponent: 1480record: 5-3 | new rating: 1640 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1583 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 118 | Izumida, Takuma (1548) | Lost 1-2 | -191564 |
| 2legacy | 731 | Ito, Shinichi (1568) | Lost 1-2 | -181546 |
| 3legacy | 1161 | Sugiyama, Ritsuki (1462) | Lost 0-2 | -191527 |
| 4legacy | 1149 | Kondou, Masataka (1478) | Won 2-0 | +171544 |
| 5legacy | 1055 | Tooi, Yuuta (1481) | Won 2-0 | +171561 |
| 6legacy | 988 | Sasaki, Shin (1428) | Won 2-0 | +151576 |
| 7legacy | 673 | Baba, Yuusuke (1405) | Won 2-0 | +151591 |
| 8legacy | 514 | Ohkouchi, Atsushi (1518) | Won 2-1 | +171608 |
| 9legacy | 448 | Kikuchi, Kouhei (1623) | Won 2-0 | +181626 |
| 10legacy | 177 | Onishi, Kouhei (1725) | Won 2-1 | +201646 |
| 11legacy | 176 | Hasegawa, Shouichi (1528) | Lost 1-2 | -201626 |
| 12legacy | 228 | Chen, Jiabin (1638) | Won 2-1 | +181644 |
| 13legacy | 197 | Koyama, Yuji (1774) | Lost 0-2 | -161628 |
| top | average opponent: 1552record: 8-5 | new rating: 1628 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 1014 | Price, Debbie (1482) | Won 2-1 | +181488 |
| 2standard | 352 | Oikawa, Takaaki (1540) | Won 2-1 | +191507 |
| 3standard | 354 | Kawaguchi, Takashi (1545) | Won 2-1 | +191526 |
| 4standard | 235 | Kitagawa, Takeru (1521) | Won 2-0 | +181544 |
| 5standard | 60 | Suganuma, Takayuki (1648) | Won 2-1 | +191563 |
| 6standard | 80 | Soh, Joe (1987) | Lost 0-2 | -101553 |
| 7standard | 138 | Mikami, Yoshirou (1617) | Won 2-1 | +191572 |
| 8standard | 107 | Katou, Youdai (1592) | Won 2-0 | +181590 |
| 9standard | 67 | Wee, Pang Ming (1799) | Lost 1-2 | -141576 |
| 10standard | 114 | Nakajima, Chikara (1815) | Lost 0-2 | -141562 |
| 11standard | 237 | Anan, Kazuyoshi (1625) | Won 2-1 | +191581 |
| 12standard | 167 | Takao, Akinao (1649) | Won 2-1 | +201601 |
| 13standard | 107 | Yoshida, Koki (1565) | Lost 0-2 | -191582 |
| 14standard | 198 | Jinba, Daisuke (1527) | Won 2-1 | +171599 |
| 15standard | 116 | Okada, Yoshikazu (1699) | Lost 1-2 | -161583 |
| top | average opponent: 1641record: 10-5 | new rating: 1583 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 157 | Naka, Keiji (1525) | Lost 1-2 | -171454 |
| 2sealed | 352 | Kitora, Yuji (1408) | Won 2-0 | +171471 |
| 3sealed | 471 | Morimitsu, Kensuke (1523) | Won 2-1 | +191490 |
| 4sealed | 363 | Tsutai, Koutarou (1315) | Won 2-0 | +151505 |
| 5sealed | 243 | Satou, Tomoki (1539) | Lost 0-2 | -181487 |
| 6sealed | 170 | Kato, Satoshi (1518) | Lost 0-2 | -171470 |
| top | average opponent: 1471record: 3-3 | new rating: 1470 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 707 | Okano, Ken (1500) | Won 2-1 | +181502 |
| 2modern | 718 | Mori, Takeshi (1526) | Lost 1-2 | -171485 |
| 3modern | 1026 | Matsumoto, Takeshi (1527) | Won 2-0 | +191504 |
| 4modern | 912 | Yamasaki, Youhei (1608) | Lost 0-2 | -171487 |
| 5modern | 1053 | Kurusu, Kazuki (1543) | Draw 1-1 | +11488 |
| 6modern | 1027 | Nakamura, Koudai (1495) | Lost 0-2 | -171471 |
| top | average opponent: 1533record: 2-3-1 | new rating: 1471 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 462 | Nakayama, Yuhei (1500) | Won 2-1 | +181517 |
| 2modern | 105 | Hirose, Yuuki (1699) | Lost 1-2 | -151502 |
| 3modern | 551 | Kor, Karls-Jans (1500) | Lost 1-2 | -181484 |
| 4modern | 595 | Tajima, Suguru (1487) | Lost 0-2 | -181466 |
| 5modern | 641 | Shoji, Taku (1463) | Won 2-0 | +181484 |
| top | average opponent: 1530record: 2-3 | new rating: 1484 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 126 | Kukita, Takenao (1396) | Lost 1-2 | -201486 |
| 2sealed | 328 | Mizuno, Akimitsu (1284) | Won 2-1 | +141500 |
| 3sealed | 305 | Park, Soo Am (1481) | Won 2-0 | +181518 |
| 4sealed | 160 | Nishiura, Ryosuke (1477) | Lost 0-2 | -191499 |
| top | average opponent: 1409record: 2-2 | new rating: 1499 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 176 | Hashimoto, Masatoshi (1500) | Won 2-0 | +181520 |
| 2extended | 227 | Miyazaki, Kazuyuki (1290) | Won 2-1 | +141534 |
| 3extended | 117 | Goto, Yusei (1608) | Won 2-0 | +191553 |
| 4extended | 74 | Shirai, Takayuki (1553) | Lost 0-2 | -181535 |
| 5extended | 104 | Kishida, Hirokazu (1597) | Draw 1-1 | +11536 |
| 6extended | 148 | Murakami, Yuuki (Miyagi) (1783) | Lost 0-2 | -131523 |
| 7extended | 206 | Kaneko, Masayuki (1561) | Lost 0-2 | -171506 |
| top | average opponent: 1556record: 3-3-1 | new rating: 1506 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 96 | Ogawa, Kazuki (1471) | Lost 1-2 | -191481 |
| 2extended | 191 | Sugimoto, Hiroaki (1508) | Won 2-0 | +191500 |
| 3extended | 161 | Yamano, Tatsuto (1460) | Won 2-0 | +171517 |
| 4extended | 99 | Hashiba, Daiki (1507) | Lost 0-2 | -181499 |
| 5extended | 156 | Tsunagi, Noriaki (1670) | Lost 0-2 | -151484 |
| 6extended | 180 | Yonamine, Hiroki (1484) | Won 2-0 | +181502 |
| top | average opponent: 1517record: 3-3 | new rating: 1502 | ||