Katsu, Masahiro
Current rating: 1478
Record: 70-97-2
- 2001
- 2002
- 2004
- 2005
- 2007
- 2008
- 2009
- 2010
- 2011
- 2012
- 2013
- 2015
- 2016
- 2017
- 2019
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 76 | Fujii, Kento (1543) | Won 2-0 | +191504 |
| 3sealed | 136 | Fujimori, Masayoshi (1666) | Lost 1-2 | -151489 |
| 4sealed | 311 | Yamagata, Hiroki (1528) | Won 2-0 | +191508 |
| 5sealed | 307 | Omiya, Takahiro (1585) | Won 2-1 | +191527 |
| 6sealed | 103 | Kawasaki, Takeshi (1548) | Lost 0-2 | -181509 |
| 7sealed | 344 | Okada, Tomofumi (1871) | Lost 1-2 | -111498 |
| 8sealed | 368 | Iwabuchi, Sou (1433) | Lost 1-2 | -201478 |
| top | average opponent: 1596record: 3-4 | new rating: 1478 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 365 | Iwazaki, Yuuta (1727) | Lost 1-2 | -141504 |
| 4standard | 593 | Kato, Hidekazu (1417) | Lost 1-2 | -201484 |
| 5standard | 534 | Tanaka, Ryuto (1448) | Won 2-0 | +171501 |
| 6standard | 394 | Taniguchi, Hiroaki (1762) | Lost 1-2 | -131488 |
| 7standard | 489 | Honjo, Kiyotaka (1280) | Lost 0-2 | -221466 |
| 8standard | 525 | Harada, Ryoichi (1493) | Won 2-1 | +191485 |
| top | average opponent: 1521record: 2-4 | new rating: 1485 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 195 | Nakao, Munenari (1561) | Won 2-1 | +201455 |
| 3sealed | 64 | Aka, Shunsuke (1602) | Won 2-1 | +211476 |
| 4sealed | 106 | Watanabe, Masahiro (1445) | Lost 1-2 | -191457 |
| 5sealed | 203 | Takemura, Yuuki (1571) | Won 2-1 | +201477 |
| 6sealed | 178 | Hendriks, Thomas (2067) | Won 2-0 | +281505 |
| 7sealed | 47 | Snook, Adam (1899) | Lost 0-2 | -111494 |
| 8sealed | 227 | Miyawaki, Takeshi (1649) | Won 2-0 | +211515 |
| 9sealed | 239 | Dictus, Mark (1635) | Lost 0-2 | -161499 |
| 10draft | 350 | Yanou, Tomiyuki (1553) | Won 2-0 | +191518 |
| 11draft | 140 | Lantto, Magnus (1917) | Lost 0-2 | -111507 |
| 12draft | 340 | Ichikawa, Takayoshi (1659) | Lost 1-2 | -161491 |
| 13draft | 146 | Lee, Hung (1639) | Won 2-1 | +211512 |
| 14draft | 129 | Habert, Alexandre (1890) | Lost 1-2 | -111501 |
| 15draft | 101 | Matsui, Hideyuki (1456) | Won 2-1 | +171518 |
| top | average opponent: 1682record: 8-6 | new rating: 1518 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 148 | Nagae, Nobuyasu (1494) | Lost 0-2 | -181447 |
| 3modern | 1070 | Ogawa, Masafumi (1642) | Lost 1-2 | -141433 |
| 4modern | 951 | Hayashi, Masashi (1438) | Lost 0-2 | -181415 |
| 5modern | 1138 | Iwatou, Kodai (1442) | Won 2-1 | +181433 |
| 6modern | 926 | Seno, Takeshi (1457) | Lost 0-2 | -171416 |
| 7modern | 1078 | Onozaki, Ryouichi (1468) | Won 2-1 | +191435 |
| 8modern | 808 | Nitta, Toshiya (1441) | Won 2-0 | +181453 |
| 9modern | 678 | Kitajima, Ryoko (1462) | Lost 0-2 | -181435 |
| top | average opponent: 1481record: 3-5 | new rating: 1435 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 479 | Endo, Yasuhiko (1475) | Lost 0-2 | -181465 |
| top | record: 0-1 | new rating: 1465 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 349 | Matsubara, Tohru (1681) | Lost 0-2 | -141431 |
| 4sealed | 791 | Shimada, Katsuhiro (1445) | Won 2-0 | +181449 |
| 5sealed | 366 | Honma, Rie (1516) | Lost 0-2 | -171432 |
| 6sealed | 494 | Hirota, Katuya (1522) | Won 2-0 | +201452 |
| 7sealed | 301 | Date, Hiroshi (1669) | Won 2-1 | +221474 |
| 8sealed | 271 | Ito, Masato (1541) | Lost 0-2 | -171457 |
| 9sealed | 429 | Tomiyama, Shin (1353) | Won 2-1 | +161473 |
| 10draft | 251 | Kimura, Yasuyuki (1562) | Won 2-1 | +201493 |
| 11draft | 73 | Urano, Syouhei (1526) | Won 2-1 | +181511 |
| 12draft | 287 | Hayashi, Daisuke (1648) | Lost 0-2 | -151496 |
| 13draft | 52 | Nishigchi, Hideki (1507) | Won 2-0 | +181514 |
| 14draft | 114 | Morishita, Mizuki (1721) | Lost 0-2 | -141500 |
| 15draft | 206 | Ikenoko, Hidehiro (1547) | Lost 0-2 | -171483 |
| top | average opponent: 1557record: 7-6 | new rating: 1483 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1367 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 674 | Tsujimura, Akira (1500) | Won 2-0 | +201387 |
| 2standard | 190 | Tanaka, Naohito (1517) | Won 2-1 | +211408 |
| 3standard | 535 | Otsuka, Yasumasa (1535) | Won 2-1 | +201428 |
| 4standard | 151 | Isayama, Yusuke (1760) | Lost 1-2 | -121416 |
| 5standard | 186 | Higuchi, Yuma (1521) | Lost 0-2 | -161400 |
| 6standard | 453 | Kurihara, Shota (1518) | Lost 1-2 | -161384 |
| 7standard | 688 | Izaki, Yuji (1510) | Won 2-1 | +201404 |
| 8standard | 534 | Nakagawa, Musashi (1517) | Won 2-0 | +201424 |
| 9standard | 310 | Takasugi, Tomoki (1551) | Won 2-0 | +211445 |
| top | average opponent: 1548record: 6-3 | new rating: 1445 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1386 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 96 | Tozuka, Kouta (1583) | Won 2-0 | +221408 |
| 3sealed | 118 | Sato, Takatoshi (1735) | Lost 0-2 | -121396 |
| 4sealed | 239 | Sekine, Naoto (1644) | Lost 1-2 | -141382 |
| 5sealed | 331 | Okubo, Reo (1556) | Lost 1-2 | -151367 |
| top | average opponent: 1630record: 1-3 | new rating: 1367 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1368 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 714 | Miyakoshi, Ryouhei (1500) | Won 2-0 | +201388 |
| 2standard | 577 | Suzuki, Yuuji (1624) | Won 2-0 | +221410 |
| 3standard | 604 | Kawahara, Masanobu (1466) | Draw 1-1 | +11411 |
| 4standard | 606 | Davis, Stuart (1537) | Won 2-0 | +211432 |
| 5standard | 555 | Shiozu, Ryouma (1702) | Lost 0-2 | -141418 |
| 6standard | 623 | Shimizu, Yuki (1511) | Lost 0-2 | -161402 |
| 7standard | 698 | Takato, Toshiyuki (1516) | Lost 0-2 | -161386 |
| top | average opponent: 1551record: 3-3-1 | new rating: 1386 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1341 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 249 | Nakamatu, Hirohumi (1507) | Lost 1-2 | -151326 |
| 3standard | 454 | Furuta, Yoshifuyu (1684) | Won 2-1 | +241350 |
| 4standard | 225 | Tanigaki, Toshiyuki (1516) | Lost 1-2 | -151335 |
| 5standard | 381 | Emori, Shinichi (1471) | Won 2-1 | +201355 |
| 6standard | 361 | Goto, Takuya (1517) | Won 2-0 | +211376 |
| 7standard | 252 | Aoki, Shougo (1513) | Lost 0-2 | -151361 |
| 8standard | 281 | Okami, Motoyosi (1484) | Won 2-1 | +201381 |
| 9standard | 207 | Nakamura, Yusuke (1642) | Lost 1-2 | -131368 |
| top | average opponent: 1542record: 4-4 | new rating: 1368 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1315 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 258 | Kumada, Keiichiro (1541) | Lost 0-2 | -141301 |
| 3sealed | 259 | Matsuda, Yuuichi (1500) | Won 2-0 | +211322 |
| 4sealed | 143 | Narukawa, Takaya (1517) | Lost 1-2 | -141308 |
| 5sealed | 292 | Saito, Yuji (1500) | Won 2-1 | +211329 |
| 6sealed | 236 | Ito, Masato (1466) | Lost 0-2 | -151314 |
| 7sealed | 251 | Katsura, Daichi (1500) | Lost 0-2 | -151299 |
| 8sealed | 340 | Yanagawa, Yuuki (1481) | Won 2-1 | +211320 |
| 9sealed | 334 | Kato, Kei (1449) | Won 2-1 | +211341 |
| top | average opponent: 1494record: 4-4 | new rating: 1341 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1282 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 260 | Akimoto, Shinichi (1475) | Won 2-1 | +221304 |
| 3standard | 77 | Ohori, Akihito (1444) | Lost 1-2 | -161288 |
| 4standard | 364 | Masakazu O., (1517) | Won 2-0 | +221310 |
| 5standard | 213 | Kuo, Tzu-Ching (1758) | Lost 0-2 | -101300 |
| 6standard | 334 | Okamura, Ryoma (1482) | Lost 0-2 | -151285 |
| 7standard | 384 | Amao, Hiroshi (1514) | Lost 0-2 | -141271 |
| 8standard | 425 | Fujikura, Reon (1468) | Won 2-0 | +221293 |
| 9standard | 309 | Matsuda, Kenji (1502) | Won 2-1 | +221315 |
| top | average opponent: 1520record: 4-4 | new rating: 1315 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1250 | |||
| round | table | opponent (rating) | result | Δrating |
| 4modern | 13 | Hishida, Akinori (1517) | Lost 0-2 | -131237 |
| 5modern | 131 | Tokizaki, Takahiro (1523) | Won 2-1 | +231260 |
| 6modern | 110 | Oosaka, Yuusuke (1772) | Lost 1-2 | -91251 |
| 7modern | 288 | Matsumura, Toshikazu (1549) | Won 2-1 | +231274 |
| 8modern | 182 | Bandou, Junichirou (1552) | Lost 0-2 | -131261 |
| 9modern | 194 | Morita, Masayuki (1432) | Won 2-0 | +211282 |
| top | average opponent: 1557record: 3-3 | new rating: 1282 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1270 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 10 | Miura S., (1500) | Won 2-0 | +221292 |
| 2standard | 14 | Itou, Tomoya (1494) | Lost 1-2 | -141278 |
| 3standard | 211 | Kamei, Toru (1414) | Won 2-1 | +201298 |
| 4standard | 225 | Hiroki N., (1519) | Won 2-1 | +221320 |
| 5standard | 159 | Fujimoto, Taichi (1672) | Lost 1-2 | -121308 |
| 6standard | 144 | Watanabe, Kotaro (1520) | Lost 0-2 | -141294 |
| 7standard | 201 | Yamashiro, Junji (1497) | Lost 0-2 | -141280 |
| 8standard | 194 | Hiroshi K., (1465) | Lost 0-2 | -151265 |
| 9standard | 157 | Onizuka, Makoto (1463) | Lost 1-2 | -151250 |
| top | average opponent: 1505record: 3-6 | new rating: 1250 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1224 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 234 | Kohki, Ogawa (1462) | Won 2-0 | +231247 |
| 2extended | 32 | Minamitani, Daichi (1517) | Won 2-1 | +231270 |
| 3extended | 70 | Kamei, Kazuhiko (1460) | Won 2-1 | +211291 |
| 4extended | 34 | Kikuchi, Yuuji (1773) | Won 2-0 | +261317 |
| 5extended | 23 | Yoshinaga, Mitsuteru (1739) | Lost 0-2 | -111306 |
| 6extended | 63 | Jitsukawa, Naofumi (1550) | Lost 0-2 | -131293 |
| 7extended | 88 | Tashiro, Yoshiaki (1729) | Lost 0-2 | -111282 |
| 8extended | 108 | Shimada, Hiroya (1597) | Lost 1-2 | -121270 |
| top | average opponent: 1603record: 4-4 | new rating: 1270 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1166 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 49 | Hirabayashi, Kazuki (1500) | Won 2-0 | +241190 |
| 2extended | 14 | Ogawa, Masato (1520) | Lost 1-2 | -131177 |
| 3extended | 234 | Kawai, Yusuke (1549) | Lost 1-2 | -111166 |
| 4extended | 387 | Yonemori, Shougo (1484) | Won 2-1 | +231189 |
| 5extended | 318 | Takanashi, Kouji (1590) | Won 2-1 | +251214 |
| 6extended | 286 | Natsume, Takuya (1471) | Lost 0-2 | -131201 |
| 7extended | 248 | Sato, Kenichiro (1511) | Won 2-1 | +231224 |
| top | average opponent: 1518record: 4-3 | new rating: 1224 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1203 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 143 | Kusadani, Takehiko (1548) | Lost 0-2 | -121191 |
| 2extended | 154 | Fujii, Hajime (1506) | Lost 1-2 | -121179 |
| 3extended | 210 | Ueyama, Yuji (1448) | Lost 1-2 | -131166 |
| top | average opponent: 1501record: 0-3 | new rating: 1166 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1228 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 177 | Ueda, Shuji (1468) | Lost 0-0 | -131215 |
| 2sealed | 227 | Nakatani, Hiroshi (1605) | Lost 0-2 | -121203 |
| top | average opponent: 1536record: 0-2 | new rating: 1203 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1287 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 245 | Kimura, Naoyuki (1408) | Lost 0-2 | -161271 |
| 2block | 236 | Aono, Yoshio (1536) | Lost 0-2 | -141257 |
| 3block | 341 | Morinaga, Masaharu (1429) | Lost 1-2 | -141243 |
| 4block | 372 | Nagato, Yuki (1445) | Lost 0-2 | -151228 |
| top | average opponent: 1455record: 0-4 | new rating: 1228 | ||
| Grand Prix Kitakyushu 2007 (LRW limited) | starting rating: 1329 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 49 | Baba, Yuuji (1500) | Lost 0-2 | -141315 |
| 2sealed | 94 | Nakagawa, Yukihiro (1599) | Lost 1-2 | -131302 |
| 3sealed | 136 | Oogushi, Hiroki (1465) | Lost 1-2 | -151287 |
| top | average opponent: 1521record: 0-3 | new rating: 1287 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1376 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 13 | Miyashita, Kazuki (1500) | Lost 1-2 | -161360 |
| 2block | 148 | Ishiyama, Hiroki (1534) | Lost 1-2 | -151345 |
| 3block | 197 | Oaku, Shinici (1464) | Lost 0-2 | -161329 |
| top | average opponent: 1499record: 0-3 | new rating: 1329 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1420 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 210 | Mori, Masato (1500) | Lost 1-2 | -161404 |
| 2standard | 283 | Hayakawa, Norio (1481) | Lost 0-2 | -171387 |
| 3standard | 404 | Yamamoto, Katsumi (1462) | Lost 1-2 | -161371 |
| 4standard | 423 | Miyamoto, Shinichi (1444) | Won 2-0 | +191390 |
| 5standard | 369 | Fujibayashi, Haruki (1464) | Lost 1-2 | -171373 |
| 6standard | 354 | Maki, Ryosuke (1448) | Lost 0-2 | -161357 |
| 7standard | 300 | Terao, Manato (1427) | Won 2-1 | +191376 |
| top | average opponent: 1461record: 2-5 | new rating: 1376 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 40 | Shiojiri, Kazuhito (1501) | Won 2-1 | +191432 |
| 2extended | 14 | Tokieda, Hiroyuki (1570) | Won 2-1 | +211453 |
| 3extended | 4 | Yoshida, Nobuyoshi (1535) | Won 2-0 | +191472 |
| 4extended | 51 | Yasukawa, Kazuhide (1433) | Lost 0-2 | -181454 |
| 5extended | 32 | Sugama, Hideichi (1543) | Lost 0-2 | -171437 |
| 6extended | 71 | Tani, Tokuo (1357) | Lost 1-2 | -191418 |
| 7extended | 101 | Yoshinobu, Takashi (1454) | Won 2-1 | +181436 |
| 8extended | 77 | Syouyama, Youhei (1541) | Lost 1-2 | -161420 |
| top | average opponent: 1492record: 4-4 | new rating: 1420 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 116 | Miyanishi, Youhei (1553) | Lost 0-2 | -171465 |
| 2sealed | 153 | Kawabata, Atsumasa (1482) | Lost 0-2 | -181447 |
| 3sealed | 183 | Ichimaru, Satoshi (1464) | Lost 1-2 | -171430 |
| 4sealed | 193 | Matsumoto, Koji (1445) | Won 2-0 | +181448 |
| 5sealed | 178 | Mitsui, Daisuke (1460) | Lost 1-2 | -181430 |
| 6sealed | 156 | Tominaga, Takeshi (1446) | Draw 1-1 | 01430 |
| 7sealed | 142 | Kim, Sung-Mook (1445) | Lost 0-2 | -171413 |
| top | average opponent: 1471record: 1-5-1 | new rating: 1413 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 292 | Nakanishi, Kazuo (1500) | Won 2-1 | +181518 |
| 2block | 263 | Hoshino, Fumio (1661) | Lost 1-2 | -151503 |
| 3block | 423 | Kuroda, Masashi (1482) | Won 2-0 | +171520 |
| 4block | 343 | Sumino, Hironori (1442) | Won 2-1 | +171537 |
| 5block | 258 | Ishida, Atsushi (1486) | Lost 0-2 | -191518 |
| 6block | 190 | Murabayashi, Naoto (1517) | Lost 0-2 | -181500 |
| 7block | 319 | Inoue, Takeshi (1498) | Lost 1-2 | -181482 |
| 8block | 278 | Ikeda, Tomokazu (1481) | Lost 1-2 | -181464 |
| 9block | 239 | Eto, Shinichiro (1464) | Won 2-0 | +181482 |
| top | average opponent: 1503record: 4-5 | new rating: 1482 | ||