Hirai, Masumi
Current rating: 1307
Record: 41-61-2
- 2000
- 2001
- 2003
- 2007
- 2008
- 2009
- 2010
- 2011
- 2012
- 2014
- 2015
- 2017
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1319 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 360 | Takakuwa, Minoru (1586) | Won 2-0 | +231342 |
| 2sealed | 254 | Shibata, Toru (1567) | Lost 0-2 | -141328 |
| 3sealed | 736 | Dolstra, Menno (1509) | Lost 0-2 | -151313 |
| 4sealed | 850 | Kondo, Fumiya (1496) | Lost 0-2 | -151298 |
| 5sealed | 962 | Matsui, Yotaro (1464) | Won 2-1 | +211319 |
| 6sealed | 893 | Yamada, Masashi (1613) | Lost 1-2 | -121307 |
| top | average opponent: 1539record: 2-4 | new rating: 1307 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1290 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 433 | Tsubouchi, Yuichi (1486) | Won 2-0 | +221312 |
| 2modern | 248 | Satou, Yuuya (1570) | Lost 1-2 | -141298 |
| 3modern | 1132 | Oh, Wooram (1483) | Lost 0-2 | -141284 |
| 4modern | 1110 | Inocima, Igor (1540) | Lost 1-2 | -141270 |
| 5modern | 1146 | Ybarra, Anthony (1472) | Won 2-0 | +221292 |
| 6modern | 941 | Takano, Kantaro (1467) | Won 2-1 | +211313 |
| 7modern | 750 | Adachi, Hiroaki (1500) | Won 2-1 | +211334 |
| 8modern | 661 | Wachigai, Hirotaka (1470) | Lost 1-2 | -151319 |
| top | average opponent: 1498record: 4-4 | new rating: 1319 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1289 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 393 | Jinbo, Takumu (1500) | Lost 1-2 | -141275 |
| 2standard | 788 | Kozuka, Kouji (1367) | Won 2-1 | +191294 |
| 3standard | 758 | Terasawa, Kazuya (1707) | Lost 1-2 | -111283 |
| 4standard | 1019 | Akimoto, Daichi (1478) | Lost 0-2 | -141269 |
| 5standard | 1034 | Aoki, Takeyuki (1459) | Won 2-0 | +211290 |
| top | average opponent: 1502record: 2-3 | new rating: 1290 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1313 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 687 | Kamada, Yuya (1500) | Lost 1-2 | -141299 |
| 2legacy | 839 | Satake, Yuuta (1481) | Lost 0-2 | -151284 |
| 3legacy | 926 | Sasaki, Yuusuke (Osaka) (1346) | Lost 1-2 | -171267 |
| 4legacy | 945 | Ozturk, Deren (1476) | Won 2-0 | +221289 |
| top | average opponent: 1451record: 1-3 | new rating: 1289 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1297 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 665 | Hayashida, Syou (1477) | Won 2-1 | +211318 |
| 2sealed | 560 | Kobayashi, Kouji (1534) | Lost 0-2 | -141304 |
| 3sealed | 809 | Choi, Seung-Muk (1563) | Lost 0-2 | -131291 |
| 4sealed | 862 | Park, Dong Joo (1485) | Lost 1-2 | -151276 |
| 5sealed | 835 | Tateyama, Masato (1462) | Won 2-1 | +221298 |
| 6sealed | 780 | Tomomizu, Takuya (1484) | Won 2-1 | +211319 |
| 7sealed | 716 | Sasaki, Tsuyoshi (1591) | Lost 1-2 | -131306 |
| 8sealed | 715 | Anzai, Yasunobu (1418) | Won 2-0 | +201326 |
| 9sealed | 668 | Oohashi, Toshiya (1632) | Lost 1-2 | -131313 |
| top | average opponent: 1516record: 4-5 | new rating: 1313 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1349 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 153 | Shibafuji, Kazuki (1500) | Lost 0-2 | -161333 |
| 2standard | 627 | Sugahara, Kazuki (1482) | Lost 0-2 | -151318 |
| 3standard | 717 | Matsumoto, Youhei (1463) | Lost 0-2 | -151303 |
| 4standard | 760 | Mizuno, Masanori (1447) | Won 2-1 | +201323 |
| 5standard | 654 | Tsuruta, Tomoyuki (1465) | Lost 1-2 | -151308 |
| 6standard | 634 | Hiroyuki N., (1444) | Lost 0-2 | -161292 |
| 7standard | 548 | Sasai, Takashi (1431) | Lost 1-2 | -151277 |
| 8standard | 459 | Hasegawa, Tomohiro (1389) | Won 2-0 | +201297 |
| top | average opponent: 1453record: 2-6 | new rating: 1297 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1373 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 43 | Oonishi, Natsuki (1477) | Won 2-0 | +201393 |
| 3sealed | 176 | Ikushima, Yasuyuki (1624) | Lost 0-2 | -141379 |
| 4sealed | 191 | Nagamoto, Kouji (1542) | Lost 0-2 | -151364 |
| 5sealed | 308 | Yew, Yu Win (1519) | Lost 0-2 | -151349 |
| top | average opponent: 1541record: 1-3 | new rating: 1349 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 83 | Nishiguchi, Hajime (1500) | Won 2-0 | +191433 |
| 2standard | 139 | Nagami, Youichi (1525) | Lost 0-2 | -161417 |
| 3standard | 240 | Hamano, Kouhei (1513) | Lost 0-2 | -161401 |
| 4standard | 329 | Yuki M., (1481) | Lost 0-2 | -171384 |
| 5standard | 338 | Yagi, Tetsuhiro (1468) | Won 2-1 | +201404 |
| 6standard | 257 | Nishimoto, Takuya (1473) | Lost 1-2 | -171387 |
| 7standard | 249 | Sugisawa, Tsuyoshi (1534) | Won 2-1 | +201407 |
| 8standard | 197 | Kei U., (1483) | Lost 1-2 | -161391 |
| 9standard | 159 | Furukawa, Tadataka (1395) | Lost 1-2 | -181373 |
| top | average opponent: 1486record: 3-6 | new rating: 1373 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 96 | Tateyama, Eiji (1500) | Won 2-0 | +191460 |
| 2extended | 52 | Masuno, Ryosuke (1849) | Lost 1-2 | -111449 |
| 3extended | 241 | Yamazaki, Hiroyuki (1431) | Lost 0-2 | -181431 |
| 4extended | 286 | Shintani, Kouhei (1483) | Lost 1-2 | -171414 |
| 5extended | 265 | Sasaki, Satoru (1416) | Won 2-0 | +181432 |
| 6extended | 217 | Fujii, Toshikazu (1419) | Lost 1-2 | -181414 |
| top | average opponent: 1516record: 2-4 | new rating: 1414 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 385 | Suzuki, Ryuuichi (1439) | Lost 0-2 | -191441 |
| 2extended | 479 | Tsuboyama, Shuta (1443) | Lost 0-2 | -181423 |
| 3extended | 450 | Tachi, Hiroshi (1433) | Won 2-0 | +181441 |
| 4extended | 339 | Matsuo, Kazuki (1433) | Draw 1-1 | 01441 |
| top | average opponent: 1437record: 1-2-1 | new rating: 1441 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 128 | Asakawa, Takahiro (1500) | Won 2-1 | +181511 |
| 2extended | 55 | Baba, Yasunori (1575) | Lost 0-2 | -171494 |
| 3extended | 104 | Wada, Yuki (1602) | Lost 0-2 | -161478 |
| 4extended | 234 | Tsuchida, Yuuki (1470) | Draw 1-1 | 01478 |
| 5extended | 210 | Nagae, Hiroyuki (1451) | Lost 1-2 | -181460 |
| top | average opponent: 1519record: 1-3-1 | new rating: 1460 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 174 | Ouchi, Akimasa (1468) | Lost 0-0 | -191512 |
| 2sealed | 225 | Watanabe, Yoshifumi (1469) | Lost 1-2 | -191493 |
| top | average opponent: 1468record: 0-2 | new rating: 1493 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 170 | Kimura, Nobuhisa (1518) | Lost 1-2 | -171456 |
| 2block | 230 | Taguchi, Jeremy (1482) | Won 2-0 | +191475 |
| 3block | 232 | Kato, Hidekazu (1465) | Won 2-0 | +171492 |
| 4block | 225 | Ikeda, Akio (1624) | Won 2-0 | +211513 |
| 5block | 155 | Orihara, Ryu (1520) | Won 2-0 | +181531 |
| top | average opponent: 1522record: 4-1 | new rating: 1531 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 82 | Itoh, Akira (1465) | Lost 1-2 | -191494 |
| 2standard | 263 | Matsumoto, Yuki1423 (1406) | Lost 0-2 | -191475 |
| 3standard | 350 | Moriyama, Masahiro (1403) | Won 2-1 | +161491 |
| 4standard | 335 | Kanaya, Yoshihisa (1483) | Lost 1-2 | -181473 |
| top | average opponent: 1439record: 1-3 | new rating: 1473 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 15 | Fujiwara, Yuuichirou (1467) | Lost 0-2 | -191514 |
| 2standard | 337 | Asano, Rei (1482) | Won 2-0 | +171531 |
| 3standard | 304 | Ikushima, Yasuyuki (1479) | Lost 0-2 | -191512 |
| 4standard | 277 | Hirabayashi, Tatsurou (1468) | Won 2-1 | +181530 |
| 5standard | 203 | Ito, Ken (1625) | Lost 1-2 | -171513 |
| top | average opponent: 1504record: 2-3 | new rating: 1513 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 257 | Murakami, Ken (1452) | Won 2-1 | +161551 |
| 2sealed | 146 | Miyazaki, Hidetaka (1549) | Lost 0-2 | -181533 |
| top | average opponent: 1500record: 1-1 | new rating: 1533 | ||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Furujou, Takashi (1517) | Lost 0-2 | -181521 |
| 2sealed | 316 | Hayashi, Yuki (1482) | Won 2-0 | +171538 |
| 3sealed | 233 | Machi, Hiroki (1500) | Won 2-1 | +171555 |
| 4sealed | 120 | Hamada, Koichi (1485) | Lost 1-2 | -191536 |
| 5sealed | 207 | Umeda, Hisashi (1502) | Lost 0-2 | -191517 |
| 6sealed | 211 | Saito, Shuichi (1482) | Won 2-0 | +181535 |
| top | average opponent: 1495record: 3-3 | new rating: 1535 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 178 | Hoshina, Wataru (1500) | Won 2-0 | +181500 |
| 2sealed | 76 | Konishi, Hideaki (1518) | Won 2-0 | +191519 |
| 3sealed | 34 | Tsuru, Kazuhiro (1536) | Lost 1-2 | -181501 |
| 4sealed | 98 | Yamasaki, Rintarou (1537) | Won 2-0 | +191520 |
| 5sealed | 78 | Nosaki, Tomoki (1536) | Won 2-0 | +181538 |
| 6sealed | 33 | Yamagami, Yudai (1620) | Won 2-1 | +191557 |
| 7sealed | 13 | Morita, Masahiko (1530) | Lost 0-2 | -181539 |
| top | average opponent: 1540record: 5-2 | new rating: 1539 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 8 | Saito, Kazuto (1500) | Lost 0-2 | -181482 |
| 2extended | 280 | Yoshimori, Kiyoaki (1482) | Won 2-1 | +181500 |
| 3extended | 175 | Miyazaki, Kazuyuki (1500) | Won 2-0 | +181518 |
| 4extended | 104 | Yasui, Satoshi (1518) | Lost 1-2 | -181500 |
| 5extended | 227 | Korenori, Makoto (1500) | Lost 1-2 | -181482 |
| top | average opponent: 1500record: 2-3 | new rating: 1482 | ||