Matsushima, Naoki
Current rating: 1302
Record: 25-51-5
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1272 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 240 | Takahashi, Yusuke (1514) | Lost 0-2 | -141258 |
| 2sealed | 640 | Ishizaki, Ren (1487) | Lost 1-2 | -141244 |
| 3sealed | 1027 | Shimizu, Kazutoshi (1458) | Lost 1-2 | -141230 |
| 4sealed | 1032 | Zhao, Jianbo (1445) | Won 2-0 | +221252 |
| 5sealed | 881 | Takai, Masaki (1463) | Won 2-1 | +221274 |
| 6sealed | 758 | Monzen, Hidetake (1449) | Won 2-1 | +211295 |
| 7sealed | 519 | Nakamura, Ryota (1544) | Won 2-0 | +221317 |
| 8sealed | 364 | Yamada, Mitsuhiro (1480) | Lost 1-2 | -151302 |
| top | average opponent: 1480record: 4-4 | new rating: 1302 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1235 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 712 | Ishii, Tomohiro (1500) | Lost 1-2 | -131222 |
| 2modern | 948 | Wakao, Akane (1482) | Won 2-0 | +231245 |
| 3modern | 935 | Fujiwara, Ryuki (1475) | Lost 1-2 | -141231 |
| 4modern | 969 | Takamura, Kazuki (1590) | Lost 0-2 | -121219 |
| 5modern | 1084 | Matsumura, Hiroki (1464) | Lost 1-2 | -141205 |
| 6modern | 960 | Senbokuya, Hikaru (1428) | Won 2-1 | +221227 |
| 7modern | 780 | Tomita, Shunsuke (1521) | Won 2-1 | +241251 |
| 8modern | 574 | Iwabuchi, Sou (1428) | Won 2-1 | +211272 |
| top | average opponent: 1486record: 4-4 | new rating: 1272 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1210 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 429 | Hagihara, Shota (1500) | Draw 1-1 | +51215 |
| 2sealed | 545 | Nabetani, Yosuke (1477) | Won 2-0 | +231238 |
| 3sealed | 554 | Ochi, Takushi (1428) | Lost 0-2 | -151223 |
| 4sealed | 795 | Miwa, Kazuki (1461) | Lost 0-2 | -141209 |
| 5sealed | 936 | Oosaki, Masakazu (1509) | Won 2-1 | +241233 |
| 6sealed | 756 | Takahashi, Toshirou (1458) | Won 2-1 | +221255 |
| 7sealed | 545 | Ito, Keigo (1617) | Lost 0-2 | -121243 |
| 8sealed | 675 | Sumihira, Toru (1494) | Lost 0-2 | -141229 |
| 9sealed | 636 | Fujikura, Iori (1559) | Draw 1-1 | +61235 |
| top | average opponent: 1500record: 3-4-2 | new rating: 1235 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1246 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 407 | Okuhara, Yuuki (1491) | Lost 1-2 | -131233 |
| 2standard | 767 | Nagata, Yusuke (1467) | Lost 0-2 | -141219 |
| 3standard | 1215 | Kouki, Nakao (1484) | Lost 0-2 | -131206 |
| 4standard | 1295 | Tanaka, Yuki (1417) | Lost 0-2 | -141192 |
| 5standard | 1247 | Sugifune, Hikaru (1433) | Lost 0-2 | -141178 |
| 6standard | 1182 | Ito, Musashi (1406) | Won 2-0 | +221200 |
| 7standard | 1078 | Kudou, Daisuke (1425) | Won 2-0 | +221222 |
| 8standard | 918 | Kaneko, Masashi (1551) | Lost 0-2 | -121210 |
| top | average opponent: 1459record: 2-6 | new rating: 1210 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1221 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 638 | Oda, Kento (1500) | Won 2-0 | +231244 |
| 2legacy | 100 | Ikedo, Masakazu (1657) | Won 2-1 | +251269 |
| 3legacy | 529 | Kaneko, Junpei (1504) | Lost 1-2 | -141255 |
| 4legacy | 568 | Ohkawa, Shinpei (1489) | Won 2-1 | +221277 |
| 5legacy | 254 | Suzuki, Masahiro (1700) | Lost 1-2 | -111266 |
| 6legacy | 507 | Nagaya, Souseki (1516) | Lost 0-2 | -131253 |
| 7legacy | 665 | Narita, Kousei (1499) | Lost 0-2 | -141239 |
| 8legacy | 805 | Suzuki, Keisuke5817 (1464) | Lost 0-2 | -141225 |
| 9legacy | 743 | Kanaya, Akihiro (1403) | Won 2-1 | +211246 |
| top | average opponent: 1526record: 4-5 | new rating: 1246 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1243 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 728 | Taniguchi, Yu (1447) | Draw 1-1 | +31246 |
| 2standard | 756 | Kouyama, Ryu (1500) | Lost 0-2 | -131233 |
| 3standard | 1407 | Yoshida, Shotaro (1486) | Lost 1-2 | -141219 |
| 4standard | 1519 | Aoki, Masahiro (1577) | Draw 1-1 | +71226 |
| 5standard | 1531 | Fujikawa, Takashi (1287) | Lost 0-2 | -171209 |
| 6standard | 1428 | Kondo, Masahiro (1561) | Won 2-0 | +241233 |
| 7standard | 1243 | Tsukada, Kasumi (1325) | Lost 0-2 | -161217 |
| 8standard | 1069 | Liu, Alex [USA] (1446) | Draw 1-1 | +41221 |
| top | average opponent: 1454record: 1-4-3 | new rating: 1221 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1299 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 435 | Matsunaga, Yuji (1426) | Lost 0-2 | -151284 |
| 2sealed | 751 | Murakosi, Tomoya (1482) | Lost 0-2 | -151269 |
| 3sealed | 1110 | Hayashi, Syouichirou (1555) | Lost 0-2 | -131256 |
| 4sealed | 1190 | Baba, Takashi (1501) | Lost 1-2 | -131243 |
| top | average opponent: 1491record: 0-4 | new rating: 1243 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1340 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 203 | Umeyama, Naoki (1385) | Lost 1-2 | -171323 |
| 2standard | 584 | Tanaka, Jun (1458) | Won 2-1 | +201343 |
| 3standard | 1006 | Simazu, Kennsuke (1500) | Lost 0-2 | -151328 |
| 4standard | 1051 | Kanno, Shutaroh (1389) | Lost 0-2 | -171311 |
| 5standard | 987 | Higashida, Taketo (1401) | Won 2-0 | +201331 |
| 6standard | 887 | Ikeda, Toshihisa (1438) | Lost 1-2 | -161315 |
| 7standard | 789 | Nakamichi, Ichiro (1461) | Lost 0-2 | -161299 |
| top | average opponent: 1433record: 2-5 | new rating: 1299 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1385 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2026 | Tanimura, Masato (1500) | Lost 0-2 | -161369 |
| 2sealed | 2362 | Ozawa, Masaki (1393) | Lost 1-2 | -171352 |
| 3sealed | 2460 | Azuma, Tatsuya (1457) | Lost 0-2 | -161336 |
| 4sealed | 2436 | Li, Way (1443) | Won 2-0 | +201356 |
| 5sealed | 2359 | Watanabe, Masao (1478) | Lost 0-2 | -161340 |
| top | average opponent: 1454record: 1-4 | new rating: 1340 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1412 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 160 | Nagai, Fukutarou (1511) | Lost 0-2 | -161396 |
| 2legacy | 278 | Mizuno, Akimitsu (1197) | Won 2-0 | +141410 |
| 3legacy | 297 | Fuchita, Shouhei (1581) | Lost 1-2 | -151395 |
| 4legacy | 392 | Yamaoka, Keita (1479) | Won 2-0 | +201415 |
| 5legacy | 264 | Inami, Yuuki (1353) | Lost 0-2 | -191396 |
| 6legacy | 306 | Fujihara, Kouki (1490) | Lost 1-2 | -171379 |
| 7legacy | 299 | Taya, Hironobu (1462) | Won 2-1 | +201399 |
| 8legacy | 234 | Yamada, Atsushi (1639) | Lost 0-2 | -141385 |
| top | average opponent: 1464record: 3-5 | new rating: 1385 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 184 | Sakai, Yasuki (1666) | Lost 0-2 | -151485 |
| 2sealed | 230 | Abe, Satoshi (1627) | Won 2-1 | +211506 |
| 3sealed | 113 | Kobayashi, Hiroki (1499) | Lost 0-2 | -191487 |
| 4sealed | 224 | Bannai, Yousuke (1479) | Lost 0-2 | -181469 |
| 5sealed | 198 | Nakanishi, Keisuke (1390) | Lost 0-2 | -191450 |
| 6sealed | 178 | Lopez, Nazario (1419) | Lost 0-2 | -191431 |
| 7sealed | 152 | Takahashi, Terue (1358) | Lost 0-2 | -191412 |
| top | average opponent: 1491record: 1-6 | new rating: 1412 | ||