Katsuta, Souichi
Current rating: 1570
Record: 33-28-2
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 183 | Tsushima, Kiyoto (1500) | Lost 0-2 | -191549 |
| 2sealed | 476 | Sakata, Akinori (1228) | Won 2-0 | +121561 |
| 3sealed | 398 | Aizawa, Seiji (1417) | Won 2-1 | +151576 |
| 4sealed | 222 | Matsumura, Takehiko (1518) | Won 2-0 | +171593 |
| 5sealed | 192 | Satou, Tetsu (1539) | Won 2-1 | +171610 |
| 6sealed | 108 | Matsumata, Syusaku (1439) | Lost 1-2 | -211589 |
| 7sealed | 239 | Muramatsu, Yusuke (1518) | Lost 1-2 | -191570 |
| top | average opponent: 1451record: 4-3 | new rating: 1570 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 846 | Suzumura, Keisuke (1553) | Won 2-0 | +181575 |
| 2sealed | 737 | Inoue, Daisuke (1482) | Won 2-0 | +161591 |
| 3sealed | 682 | Nakano, Atsushi (1500) | Lost 1-2 | -201571 |
| 4sealed | 841 | Tanaka, Yu (1568) | Won 2-1 | +181589 |
| 5sealed | 701 | Kawase, Takeshi (1508) | Lost 1-2 | -191570 |
| 6sealed | 757 | Kaneko, Hitoshi (1516) | Won 2-1 | +171587 |
| 7sealed | 797 | Itakura, Toshiyuki (1539) | Lost 0-2 | -191568 |
| top | average opponent: 1524record: 4-3 | new rating: 1568 | ||
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1583 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 66 | Shibuya, Takuma (1559) | Draw 1-1 | -11582 |
| 2sealed | 103 | Hiraishi, Teruyuki (1464) | Lost 1-2 | -201562 |
| 3sealed | 147 | Nakazuka, Yuuki (1448) | Lost 1-2 | -201542 |
| 4sealed | 181 | Nagai, Shou (1464) | Won 2-1 | +171559 |
| 5sealed | 154 | Kobashi, Hideto (1447) | Won 2-0 | +161575 |
| 6sealed | 121 | Fujimoto, Taichi (1570) | Lost 0-2 | -181557 |
| top | average opponent: 1492record: 2-3-1 | new rating: 1557 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 63 | Nihongi, Yuta (1444) | Won 2-0 | +171541 |
| 2sealed | 137 | Sato, Rei (1539) | Lost 1-2 | -181523 |
| 3sealed | 224 | Onuki, Yusuke (1535) | Won 2-0 | +181541 |
| 4sealed | 166 | Kaji, Tomohiro (1803) | Draw 1-1 | +51546 |
| 5sealed | 145 | Hoshino, Fumio (1553) | Lost 1-2 | -181528 |
| 6sealed | 170 | Murasawa, Yuuya (1498) | Won 2-1 | +171545 |
| 7sealed | 120 | Hoshino, Hiroaki (1666) | Won 2-0 | +211566 |
| 8sealed | 83 | Saito, Takanobu (1522) | Won 2-0 | +171583 |
| top | average opponent: 1570record: 5-2-1 | new rating: 1583 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 75 | Ayama, Takashi (1666) | Lost 0-2 | -161542 |
| 3standard | 284 | Baba, Yasunori (1581) | Lost 1-2 | -171525 |
| 4standard | 366 | Horie, Yuuki (1481) | Won 2-0 | +171542 |
| 5standard | 333 | Ohara, Yoshirou (1560) | Lost 0-2 | -181524 |
| top | average opponent: 1572record: 1-3 | new rating: 1524 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 85 | Yamashita, Hiroki (1500) | Won 2-0 | +181519 |
| 3block | 120 | Yamagishi, Yuichi (1745) | Won 2-1 | +221541 |
| 4block | 54 | Katsumata, Yoshihisa (1554) | Won 2-0 | +191560 |
| 5block | 1 | Kishi, Tatsunori (1572) | Won 2-1 | +181578 |
| 6block | 14 | Takano, Yasuhiro (1601) | Won 2-1 | +181596 |
| 7block | 1 | Kawashima, Yoshiyuki (1646) | Lost 0-2 | -171579 |
| 8block | 27 | Murase, Hiroshi (1556) | Won 2-0 | +181597 |
| 9block | 15 | Osaka, Yusuke (1585) | Lost 0-2 | -181579 |
| 10block | 22 | Lee, Yen Han (1499) | Lost 1-2 | -201559 |
| 11block | 57 | Shindou, Takehiro (1510) | Lost 0-2 | -191540 |
| 12block | 66 | Kudo, Koichi (1498) | Lost 1-2 | -191521 |
| 13block | 84 | Sasaki, Yusuke (Tokyo) (1474) | Won 2-0 | +181539 |
| 14block | 60 | Akita, Naoto (1559) | Won 2-1 | +181557 |
| 15block | 50 | Miyajima, Yoshitaka (1574) | Won 2-0 | +181575 |
| 16block | 38 | Sugiyama, Yuya (1625) | Lost 0-2 | -171558 |
| top | average opponent: 1566record: 9-6 | new rating: 1558 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Hirota, Yuzo (1501) | Lost 0-2 | -181483 |
| 2sealed | 288 | Yamada, Keiichi (1434) | Won 2-0 | +181501 |
| 3sealed | 195 | Mori, Yoshimasa (1500) | Lost 0-2 | -181483 |
| 4sealed | 276 | Yoshida, Yukihiro (1484) | Won 2-1 | +181501 |
| 5sealed | 186 | Sakai, Naoko (1549) | Won 2-0 | +181519 |
| 6sealed | 129 | Hoshino, Masaaki (1518) | Won 2-1 | +181537 |
| 7sealed | 103 | Aoki, Yousaku (1549) | Lost 0-2 | -171520 |
| 8sealed | 106 | Umezawa, Shinobu (1511) | Lost 1-2 | -191501 |
| top | average opponent: 1506record: 4-4 | new rating: 1501 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 105 | Ookura, Kazunari (1500) | Lost 1-2 | -181482 |
| 2sealed | 209 | Mukai, Takeshi (1482) | Won 2-0 | +181500 |
| 3sealed | 238 | Kozakai, Yukio (1508) | Lost 1-2 | -181482 |
| 4sealed | 259 | Kumagai, Shinichi (1738) | Lost 0-2 | -131469 |
| 5sealed | 235 | Koyanagi, Takuya (1463) | Won 2-0 | +181487 |
| 6sealed | 169 | Matsuo, Keita (1482) | Won 2-0 | +181505 |
| 7sealed | 121 | Koen, Yusuke (1398) | Lost 1-2 | -201485 |
| 8sealed | 120 | Kaneko, Koji (1422) | Won 2-0 | +161501 |
| top | average opponent: 1499record: 4-4 | new rating: 1501 | ||