Sakata, Akinori
Current rating: 1284
Record: 28-52-1
Grand Prix Kobe 2008Grand Prix Okayama 2008Grand Prix Taipei 2008Grand Prix Bangkok 2009Grand Prix Niigata 2009Grand Prix Sendai 2010Grand Prix Kobe 2011Grand Prix Kobe 2012Grand Prix Yokohama 2012Grand Prix Nagoya 2014Grand Prix Shizuoka 2015Grand Prix Chiba 2015Grand Prix Nagoya 2016Grand Prix Kyoto 2017Grand Prix Chiba 2019
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1302 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 128 | Sasahara, Yuta (1444) | Won 2-0 | +201322 |
| 2sealed | 456 | Matsubara, Tohru (1757) | Lost 0-2 | -101312 |
| 3sealed | 775 | Wada, Yusuke (1546) | Lost 0-2 | -141298 |
| 4sealed | 881 | Yoshida, Masafumi (1519) | Lost 1-2 | -141284 |
| top | average opponent: 1567record: 1-3 | new rating: 1284 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1270 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 337 | Kawai, Yoshihiro (1493) | Won 2-1 | +221292 |
| 2sealed | 351 | Ishizaki, Yoshiki (1522) | Lost 1-2 | -141278 |
| 3sealed | 892 | Arai, Kenichiro (1628) | Won 2-1 | +241302 |
| 4sealed | 515 | Ma, Noah (1575) | Lost 0-2 | -131289 |
| 5sealed | 614 | Sugiyama, Takahiro (1520) | Won 2-0 | +221311 |
| 6sealed | 441 | Takemura, Yuuki (1551) | Lost 1-2 | -141297 |
| 7sealed | 777 | Onishi, Kouhei (1537) | Draw 1-1 | +51302 |
| top | average opponent: 1546record: 3-3-1 | new rating: 1302 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1252 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 440 | Ootaki, Ryo (1535) | Won 2-0 | +231275 |
| 4sealed | 236 | Nagai, Mamoru (1710) | Lost 0-2 | -111264 |
| 5sealed | 429 | Takamizu, Tomohiro (1717) | Lost 1-2 | -101254 |
| 6sealed | 463 | Koike, Yuta (1439) | Lost 0-2 | -151239 |
| 7sealed | 713 | Ejima, Kazuki (1572) | Lost 1-2 | -121227 |
| 8sealed | 744 | Tsukada, Kasumi (1368) | Won 2-1 | +211248 |
| 9sealed | 587 | Mori, Hisayuki (1463) | Won 2-0 | +221270 |
| top | average opponent: 1543record: 3-4 | new rating: 1270 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1243 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 459 | Iwamoto, Yasuharu (1445) | Lost 0-2 | -151228 |
| 2sealed | 476 | Katsuta, Souichi (1549) | Lost 0-2 | -121216 |
| 3sealed | 566 | Manabe, Shun (1464) | Won 2-1 | +221238 |
| 4sealed | 402 | Utugi, Furato (1423) | Won 2-1 | +221260 |
| 5sealed | 381 | Kawata, Yoshiaki (1511) | Won 2-1 | +221282 |
| 6sealed | 307 | Oshimi, Akira (1488) | Lost 1-2 | -141268 |
| 7sealed | 286 | Kurusu, Kazuki (1386) | Lost 1-2 | -161252 |
| top | average opponent: 1466record: 3-4 | new rating: 1252 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1265 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 964 | Ayakawa, Hiromichi (1486) | Lost 1-2 | -141251 |
| 2sealed | 955 | Ishida, Koji (1484) | Lost 1-2 | -141237 |
| 3sealed | 1119 | Takahashi, Ryota (1387) | Won 2-1 | +201257 |
| 4sealed | 978 | Sato, Tomoharu (1430) | Lost 1-2 | -141243 |
| top | average opponent: 1446record: 1-3 | new rating: 1243 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1228 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 707 | Ueda, Yushi (1387) | Won 2-1 | +211249 |
| 2sealed | 606 | Kobayashi, Yasuhisa (1515) | Lost 0-2 | -131236 |
| 3sealed | 839 | Morita, Takanori (1559) | Won 2-1 | +241260 |
| 4sealed | 621 | Takenaka, Yuuhi (1536) | Lost 1-2 | -141246 |
| 5sealed | 775 | Yashiki, Kouichi (1433) | Lost 1-2 | -141232 |
| 6sealed | 790 | Nogami, Kazuki (1546) | Won 2-0 | +231255 |
| 7sealed | 742 | Kousaka, Shinichi (1499) | Won 2-0 | +231278 |
| 8sealed | 664 | Hashizume, Nobuyuki (1546) | Lost 0-2 | -131265 |
| top | average opponent: 1503record: 4-4 | new rating: 1265 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1317 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 96 | Hokumura, Tatsuro (1501) | Lost 1-2 | -151302 |
| 2modern | 512 | Uchida, Hiroki (1448) | Lost 1-2 | -151287 |
| 3modern | 607 | Lange, Jesten (1466) | Won 2-0 | +211308 |
| 4modern | 504 | Miyazaki, Kazuyuki (1209) | Lost 0-2 | -201288 |
| 5modern | 640 | Sasaki, Yasuhiro (1466) | Lost 1-2 | -151273 |
| 6modern | 555 | Shigezumi, Manabu (1446) | Lost 1-2 | -151258 |
| 7modern | 476 | Furusawa, Reona (1428) | Lost 1-2 | -141244 |
| 8modern | 389 | Utsunomiya, Mai (1395) | Lost 1-2 | -161228 |
| top | average opponent: 1420record: 1-7 | new rating: 1228 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1367 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 103 | Tabata, Kenichirou (1500) | Lost 1-2 | -161351 |
| 2sealed | 313 | Nishimura, Masaaki (1318) | Lost 0-2 | -191332 |
| 3sealed | 477 | Tanaka, Ryuji (1465) | Lost 0-2 | -151317 |
| top | average opponent: 1427record: 0-3 | new rating: 1317 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1417 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 258 | Furukawa, Ken'ichi (1599) | Lost 1-2 | -151402 |
| 2extended | 254 | Haratake, Noriyuki (1440) | Lost 0-2 | -171385 |
| 3extended | 279 | Fujikawa, Hiroyuki (1370) | Lost 0-2 | -181367 |
| top | average opponent: 1470record: 0-3 | new rating: 1367 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 22 | Taura, Ryuji (1493) | Lost 0-2 | -171446 |
| 5standard | 97 | Marcik, Michal (1761) | Lost 0-2 | -131433 |
| 6standard | 236 | Konoma, Nobuyuki (1511) | Lost 0-2 | -161417 |
| top | average opponent: 1588record: 0-3 | new rating: 1417 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 180 | Ashikaga, Masatoshi (1500) | Lost 1-2 | -181501 |
| 2sealed | 203 | Motoki, Takahiro (1481) | Lost 0-2 | -191482 |
| 3sealed | 270 | Dapat, Clyde (1428) | Lost 1-2 | -191463 |
| top | average opponent: 1470record: 0-3 | new rating: 1463 | ||
| Grand Prix Bangkok 2009 (M10 limited) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 89 | Vimuktayon, Nantanit (1500) | Won 2-0 | +191493 |
| 2sealed | 9 | Ordonez, Arrian Ferric (1468) | Won 2-0 | +171510 |
| 3sealed | 63 | Treesuwan, Peeropat (1546) | Won 2-0 | +191529 |
| 4sealed | 49 | Vidugiris, Gaudenis (1744) | Lost 1-2 | -141515 |
| 5sealed | 84 | Friestad, Disorn (1535) | Lost 1-2 | -181497 |
| 6sealed | 107 | Subcharoen, Jakguy (1572) | Lost 1-2 | -161481 |
| 7sealed | 116 | Leong, Jiti (1597) | Won 2-0 | +201501 |
| 8sealed | 89 | Kamonwit, Thawee P (1519) | Won 2-0 | +181519 |
| top | average opponent: 1560record: 5-3 | new rating: 1519 | ||
| Grand Prix Taipei 2008 (ALA limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Chang, Chih Wei (1500) | Won 2-0 | +191483 |
| 2sealed | 42 | Ruan, Paul (1500) | Won 2-1 | +181501 |
| 3sealed | 27 | Hirabayashi, Kazuya (1855) | Lost 1-2 | -121489 |
| 4sealed | 57 | Chen, Hung-Chi (1520) | Lost 1-2 | -171472 |
| 5sealed | 101 | Ko, Chiyuan (1545) | Won 2-1 | +191491 |
| 6sealed | 66 | Colleu, Guillaume (1520) | Lost 1-2 | -171474 |
| 7sealed | 81 | Hwang, Wen Jer (1502) | Lost 0-2 | -181456 |
| 8sealed | 80 | Hung, Hsun Hao (1462) | Won 2-0 | +181474 |
| top | average opponent: 1551record: 4-4 | new rating: 1474 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 254 | Sumida, Ken (1500) | Lost 0-0 | -181482 |
| 2sealed | 194 | Aono, Yoshio (1492) | Lost 1-2 | -181464 |
| top | average opponent: 1496record: 0-2 | new rating: 1464 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 174 | yamauchi, yuu (1447) | Lost 0-1 | -191481 |
| 2block | 281 | Abe, Keisuke (1483) | Lost 1-2 | -181463 |
| 3block | 360 | Mori, Shotaro (1509) | Lost 1-2 | -171446 |
| 4block | 377 | Hori, Keisuke (1446) | Won 2-1 | +181464 |
| 5block | 345 | Iwai, Tetsuji (1461) | Won 2-0 | +181482 |
| 6block | 267 | Yamasaki, Yuuki (1482) | Won 2-1 | +181500 |
| top | average opponent: 1471record: 3-3 | new rating: 1500 | ||