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Sakamoto, Masaaki
Current rating: 1573

Grand Prix Nagoya 2020 (pioneer) starting rating: 1556
round table opponent (rating) result Δrating
3pioneer 34 Wang, Shensheng (1656) Lost 0-2 -161540
4pioneer 349 Hando, Shinnosuke (1553) Won 2-0 +181558
5pioneer 144 Uchiyama, Kouichi (1268) Won 2-1 +131571
6pioneer 60 Kwanchaitunya, Sakditat (1607) Lost 1-2 -181553
7pioneer 175 Fukushima, Yuuhei (1662) Won 2-1 +201573
8pioneer 93 Nishida, Masashi (1572) Won 2-1 +181591
9pioneer 132 Sasao, Yusuke (1699) Won 2-1 +201611
10pioneer 89 Yamada, Mitsuhiro (1565) Lost 0-2 -191592
11pioneer 92 Nakayama, Hiroshi (1531) Lost 1-2 -191573
top average opponent: 1568record: 5-4 new rating: 1573

Grand Prix Nagoya 2019 (ELD standard) starting rating: 1550
round table opponent (rating) result Δrating
3standard 42 Kim, Taewoo (1631) Lost 1-2 -171533
4standard 475 Ookura, Haruka (1720) Won 2-0 +211554
5standard 251 Tezuka, Takatomo (1562) Won 2-1 +191573
6standard 88 Motoya, Toru (1401) Won 2-1 +141587
7standard 38 Ichimura, Yuji (1584) Lost 1-2 -181569
8standard 224 Moriyama, Masahide (1815) Lost 1-2 -131556
top average opponent: 1619record: 3-3 new rating: 1556

Grand Prix Bangkok 2019 (ELD limited) starting rating: 1586
round table opponent (rating) result Δrating
3sealed 22 Huang, Hao-Shan (1761) Lost 0-2 -151571
4sealed 142 Oatnoi, Watcharapong (1390) Lost 0-2 -211550
top average opponent: 1576record: 0-2 new rating: 1550

Grand Prix Chiba 2019 (M20 limited) starting rating: 1579
round table opponent (rating) result Δrating
3sealed 348 Zimmermann, Raoul (1802) Won 2-0 +221601
4sealed 85 Matsuyama, Ryousuke (1711) Won 2-1 +201621
5sealed 135 Hibino, Yasutaka (1719) Lost 0-2 -171604
6sealed 297 Shiohata, Ryosuke (1560) Lost 0-2 -181586
top average opponent: 1698record: 2-2 new rating: 1586

Grand Prix Yokohama 2019 (modern) starting rating: 1490
round table opponent (rating) result Δrating
3modern 330 Ito, Kazuma (1581) Won 2-1 +201510
4modern 203 Yamagishi, Keisuke (1569) Won 2-0 +191529
5modern 120 Oikawa, Ryusuke (1668) Lost 0-2 -161513
6modern 81 Takahashi, Taro (1611) Won 2-1 +201533
7modern 58 Yashiro, Kazuki (1847) Lost 1-2 -121521
8modern 268 Nakada, Ryo (1728) Won 2-1 +211542
9modern 92 Kabeya, Atsushi (1618) Won 2-1 +201562
10modern 76 Lee, Chao Yi (1719) Won 2-1 +201582
11modern 89 Murae, Ryuji (1951) Lost 1-2 -111571
12modern 64 Hasegawa, Tatuya (1662) Won 2-1 +201591
13modern 81 Tanahashi, Masayasu (1954) Lost 1-2 -121579
14modern 91 Matsumata, Syusaku (1515) Won 2-0 +171596
15modern 76 Mishina, Ryota (1648) Lost 0-2 -171579
top average opponent: 1698record: 8-5 new rating: 1579

Grand Prix Kyoto 2019 (RNA standard) starting rating: 1508
round table opponent (rating) result Δrating
3standard 393 Yamamoto, Shinya 8409 (1500) Lost 0-2 -181490
top record: 0-1 new rating: 1490

Grand Prix Shizuoka 2018 (standard) (GRN standard) starting rating: 1533
round table opponent (rating) result Δrating
3standard 393 Pan, Minxing (1819) Lost 1-2 -131520
4standard 549 Kawaguchi, Tetsu (1723) Lost 0-2 -141506
5standard 669 Ichikawa, Shoichi (1595) Won 2-0 +191525
6standard 691 Kamo, Keisuke (1558) Lost 1-2 -171508
top average opponent: 1674record: 1-3 new rating: 1508

Grand Prix Chiba 2018 (M19 limited) starting rating: 1525
round table opponent (rating) result Δrating
3sealed 164 Okai, Toshiki (1848) Lost 1-2 -121513
4sealed 723 Takahashi, Yu (1518) Won 2-0 +181531
5sealed 161 Mine, Ryunosuke (1400) Lost 1-2 -211510
6sealed 349 Irie, Masafumi (1423) Won 2-0 +171527
7sealed 414 Murakami, Akinori (1606) Lost 0-2 -171510
8sealed 416 Cho, Jeong Woo (1786) Won 2-1 +231533
top average opponent: 1597record: 3-3 new rating: 1533

Grand Prix Kyoto 2017 (HOU limited) starting rating: 1547
round table opponent (rating) result Δrating
3sealed 28 Arai, Yuusuke3019 (1523) Won 2-1 +181565
4sealed 155 Izaki, Yuji (1619) Lost 0-2 -171548
5sealed 368 Lee, Joon Soo (1886) Won 2-0 +241572
6sealed 138 Tsuchiya, Ryuichi (1672) Won 2-1 +191591
7sealed 203 Esaki, Keisuke (1641) Lost 1-2 -171574
8sealed 292 Tsuji, Ryosuke (1572) Won 2-0 +181592
9sealed 216 Zeggio, Riccardo (1496) Lost 0-2 -201572
10draft 266 Tamada, Ryoichi (1843) Lost 1-2 -131559
11draft 210 Matsubara, Ichiro (1668) Lost 0-2 -161543
13draft 67 Ogawa, Nobuharu (1526) Lost 0-2 -181525
top average opponent: 1644record: 4-6 new rating: 1525

Grand Prix Kobe 2017 (modern) starting rating: 1575
round table opponent (rating) result Δrating
3modern 535 Yamawaki, Takumi (1525) Won 2-0 +171592
4modern 294 Chihiro, Kogure (1581) Lost 1-2 -181574
5modern 356 Kawasaki, Keita (2106) Lost 0-2 -101564
6modern 465 Matsushita, Masayoshi (1596) Lost 0-2 -171547
top average opponent: 1702record: 1-3 new rating: 1547

Grand Prix Shizuoka 2017 (AER standard) starting rating: 1543
round table opponent (rating) result Δrating
3standard 668 Tanaka, Jouji (1538) Lost 1-2 -181525
4standard 843 Hattori, Kazuki (1625) Won 2-1 +201545
5standard 477 Miyabe, Kouichi (1737) Won 2-0 +211566
6standard 201 Kakumae, Teruya (1993) Lost 1-2 -101556
7standard 266 Yanagidate, Ikumi (1555) Won 2-1 +181574
8standard 251 Iwasaki, Takashi (1529) Lost 0-2 -191555
9standard 456 Ono, Makoto (1562) Won 2-1 +181573
10standard 197 Futami, Yoshiki (1541) Won 2-0 +171590
11standard 128 Shimizu, Ryouta (1677) Draw 1-1 +21592
12standard 205 Yamaguchi, Yuuichi (1636) Lost 1-2 -171575
top average opponent: 1639record: 5-4-1 new rating: 1575

Grand Prix Tokyo 2016 (SOI standard) starting rating: 1587
round table opponent (rating) result Δrating
3standard 540 Shinohara, Gen (Tokyo) (1518) Lost 0-2 -191568
4standard 592 Oikawa, Masafumi (1455) Lost 0-2 -201548
5standard 907 Tang, Jianhua (1402) Draw 1-1 -31545
6standard 1023 Nakamura, Satoshi (Chiba) (1485) Won 2-1 +171562
7standard 767 Ma, Han (1496) Lost 1-2 -191543
top average opponent: 1471record: 1-3-1 new rating: 1543

Grand Prix Nagoya 2016 (OGW limited) starting rating: 1509
round table opponent (rating) result Δrating
3sealed 122 Sakurabayashi, Gaku (1499) Won 2-1 +181527
4sealed 287 Takechi, Takumi (1480) Won 2-0 +171544
5sealed 61 Kanagawa, Takuya (1538) Won 2-0 +181562
6sealed 21 Hattori, Taiki (1861) Won 2-0 +241586
7sealed 3 Ogata, Nobuhiko (1672) Won 2-1 +191605
8sealed 7 Ishii, Taisuke (1793) Won 2-1 +211626
9sealed 8 Taniguchi, Reo (1608) Lost 0-2 -181608
10draft 161 Kakumae, Teruya (1850) Won 2-1 +221630
11draft 2 Osawa, Takuya (1899) Lost 0-2 -131617
12draft 172 Itou, Kenshirou (1713) Lost 0-2 -161601
13draft 101 Ishii, Taisuke (1766) Lost 0-2 -151586
14draft 83 Nakamura, Hajime (1662) Won 2-1 +191605
15draft 66 Nakano, Tatsuhito (1607) Lost 0-2 -181587
top average opponent: 1688record: 8-5 new rating: 1587

Grand Prix Kobe 2015 (BFZ standard) starting rating: 1460
round table opponent (rating) result Δrating
3standard 519 Fukunaga, Keisuke (1565) Won 2-1 +201480
4standard 201 Sano, Hikaru (1552) Won 2-0 +191499
5standard 65 Mutou, Yoshinosuke (1573) Won 2-1 +201519
6standard 64 Fujimoto, Yuki (1680) Lost 1-2 -151504
7standard 99 Itou, Hayato7608 (1629) Draw 1-1 +21506
8standard 121 Tanaka, Yu (1588) Lost 1-2 -171489
9standard 241 Yuasa, Kentarou (1604) Won 2-0 +201509
top average opponent: 1599record: 4-2-1 new rating: 1509

Grand Prix Kyoto 2015 (legacy) starting rating: 1498
round table opponent (rating) result Δrating
3legacy 11 Iwasaki, Takuya (1535) Lost 0-2 -171481
4legacy 236 Urakami, Takayuki (1479) Won 2-1 +181499
5legacy 198 Nagase, Hirofumi (1492) Lost 1-2 -181481
6legacy 200 Maeda, Takayuki (1329) Lost 1-2 -211460
top average opponent: 1459record: 1-3 new rating: 1460

Grand Prix Shizuoka 2015 (KTK limited) starting rating: 1453
round table opponent (rating) result Δrating
3sealed 779 Takagi, Kengo (1577) Won 1-0 +201473
4sealed 701 Ichikawa, Tatsuya (1571) Lost 1-2 -161457
5sealed 710 Sugita, Tsubasa (1480) Won 2-1 +181475
6sealed 654 Matsushita, Shintaro (1590) Lost 0-2 -151460
7sealed 812 Akamatsu, Yoshiki (1538) Won 2-0 +191479
8sealed 716 Yamauchi, Takashi (1506) Won 2-1 +181497
9sealed 679 Karasawa, Ryuichi (1545) Draw 1-1 +11498
top average opponent: 1544record: 4-2-1 new rating: 1498

Grand Prix Kobe 2014 (modern) starting rating: 1445
round table opponent (rating) result Δrating
2modern 201 Atobe, Kazuki (1567) Won 2-0 +201465
3modern 164 Adachi, Ryosuke (1532) Lost 0-2 -171448
4modern 197 Hasegawa, Atusi (1419) Won 2-0 +181466
5modern 236 Wakamatsu, Akimasa (1502) Lost 1-2 -181448
6modern 235 Masuda, Jyunya (1525) Lost 0-2 -161432
7modern 334 Iwazaki, Yuuta (1606) Won 2-1 +211453
top average opponent: 1525record: 3-3 new rating: 1453

Grand Prix Nagoya 2014 (BNG limited) starting rating: 1477
round table opponent (rating) result Δrating
3sealed 671 Kusakabe, Shuichi (1627) Lost 1-2 -151462
4sealed 640 Shirakihara, Ryuuichi (1561) Lost 0-2 -161446
5sealed 723 Matsumoto, Masaya (1421) Won 2-0 +171463
6sealed 685 Nasu, Kenichi (1454) Lost 0-2 -181445
top average opponent: 1516record: 1-3 new rating: 1445

Grand Prix Shizuoka 2013 (THS standard) starting rating: 1488
round table opponent (rating) result Δrating
3standard 112 Kim, Chan-wook (1500) Won 2-1 +181506
4standard 61 Iimura, Yuta (1494) Won 2-0 +181524
5standard 4 Yamada, Yousuke (1698) Lost 1-2 -151509
6standard 65 Itou, Masayoshi (1542) Lost 1-2 -181491
7standard 102 Liang, Chihwei (1551) Lost 0-2 -171474
8standard 135 Katau, Yoshito (1541) Won 2-0 +201494
9standard 263 Teo, Yuen Peir (1571) Lost 0-2 -171477
top average opponent: 1557record: 3-4 new rating: 1477

Grand Prix Kitakyushu 2013 (M14 standard) starting rating: 1494
round table opponent (rating) result Δrating
3standard 190 Jang, Sung-Jae (1537) Won 2-1 +191513
4standard 139 Nakamura, Sara (1505) Lost 1-2 -181495
5standard 207 Sato, Keisuke (1501) Won 2-1 +181513
6standard 118 Inuzuka, Masayuki (1582) Won 2-0 +191532
7standard 86 Muto, Masaharu (1669) Lost 0-2 -151517
8standard 146 Nakamura, Atsushi (1750) Lost 1-2 -141503
9standard 149 Yao, Chris (1646) Lost 1-2 -151488
top average opponent: 1599record: 3-4 new rating: 1488

Grand Prix Nagoya 2012 (RTR standard) starting rating: 1489
round table opponent (rating) result Δrating
2standard 200 Ariyoshi, Daisuke (1443) Won 2-0 +171506
3standard 263 Yamaguchi, Hiroshi (Niigata) (1518) Lost 1-2 -181488
4standard 245 Nishiura, Ryosuke (1451) Won 2-1 +181506
5standard 137 Nakaoka, Koshiro (1433) Won 2-1 +161522
6standard 108 Hashimoto, Tatsuki (1520) Lost 1-2 -181504
7standard 295 Mori, Katsuhiro (1970) Lost 0-2 -101494
top average opponent: 1556record: 3-3 new rating: 1494

Grand Prix Yokohama 2012 (modern) starting rating: 1427
round table opponent (rating) result Δrating
3modern 166 Takai, Hiroaki (1527) Won 2-1 +191446
4modern 65 Yamamura, Yuma (1487) Won 2-0 +191465
5modern 35 Tamura, Tetsu (1578) Won 2-0 +201485
6modern 43 Moriya, Toshihiko (1690) Won 2-0 +221507
7modern 14 Furukawa, Hiroki (1651) Won 2-0 +201527
8modern 1 Kuo, Tzu-Ching (1977) Lost 1-2 -101517
9modern 32 Ushijima, Masaki (1771) Lost 0-2 -131504
10modern 26 Ikeda, Tsuyoshi (1686) Lost 0-2 -151489
top average opponent: 1671record: 5-3 new rating: 1489

Grand Prix Kobe 2012 (DKA limited) starting rating: 1441
round table opponent (rating) result Δrating
2sealed 218 Okazaki, Kazuhiro (1520) Lost 0-2 -171424
3sealed 254 Kataoka, Asami (1543) Won 2-0 +201444
4sealed 330 Saitou, Kazuya (1458) Lost 0-2 -171427
top average opponent: 1507record: 1-2 new rating: 1427

Grand Prix Sendai 2004 (DST limited) starting rating: 1447
round table opponent (rating) result Δrating
2sealed 63 Kawataka, Ryota (1520) Lost 0-2 -171430
3sealed 198 Okutomi, Hiromitsu (1586) Won 2-0 +211451
4sealed 137 Hayashi, Takatomo (1523) Lost 1-2 -171434
5sealed 122 Miyamori, Masaei (1473) Lost 0-2 -171417
6sealed 164 Awano, Heita (1481) Won 2-0 +191436
7sealed 128 Kataoka, Asami (1646) Lost 0-2 -141422
8sealed 102 Lopez, Nazario (1456) Won 2-1 +191441
top average opponent: 1526record: 3-4 new rating: 1441

Grand Prix Yokohama 2003 (Onslaught block) starting rating: 1520
round table opponent (rating) result Δrating
3block 7 Fukai, Akihiro (1519) Lost 0-2 -181502
4block 111 Yasooka, Shota (1502) Lost 1-2 -181484
5block 207 Maruyama, Takaaki (1427) Lost 0-2 -191465
6block 304 Yamaguchi, Kazuki (1482) Lost 1-2 -181447
top average opponent: 1482record: 0-4 new rating: 1447

Grand Prix Kyoto 2003 (LGN limited) starting rating: 1509
round table opponent (rating) result Δrating
1sealed 183 Nakamura, Kiyonari (1514) Won 2-0 +191528
2sealed 105 Ositani, Kenji (1517) Won 2-0 +171545
3sealed 82 Kito, Takeshi (1522) Won 2-0 +181563
4sealed 36 Tsumura, Kenji (1588) Lost 0-2 -181545
5sealed 113 Sekine, Takeshi (1673) Won 2-1 +211566
6sealed 35 Fujita, Tsuyoshi (1883) Lost 0-2 -131553
7sealed 56 Ishikawa, Masayo (1539) Lost 1-2 -181535
8sealed 8 Iwai, Tsuyoshi (1686) Lost 0-2 -151520
top average opponent: 1615record: 4-4 new rating: 1520

Grand Prix Hiroshima 2003 (extended) starting rating: 1506
round table opponent (rating) result Δrating
2extended 60 Harada, Daisaku (1518) Draw 1-1 +11507
3extended 74 Tajimi, Yuki (1536) Won 2-1 +181525
4extended 56 Tanaka, Atsushi (1633) Won 2-0 +201545
5extended 29 Tanaka, Kazuyuki (1554) Lost 0-2 -181527
6extended 59 Shimada, Takashi (1501) Won 2-0 +181545
7extended 29 Umeno, Kengo (1543) Lost 0-2 -181527
8extended 56 Sugiyama, Kouichi (1567) Lost 1-2 -181509
top average opponent: 1550record: 3-3-1 new rating: 1509

Grand Prix Sapporo 2002 (Odyssey block) starting rating: 1480
round table opponent (rating) result Δrating
3block 52 Nakamura, Shuhei (1801) Won 2-0 +241504
4block 4 Saito, Tomoyuki (1538) Draw 1-1 01504
5block 25 Mayaguchi, Masaru (1556) Lost 0-2 -171487
6block 57 Fukuya, Kenji (1444) Won 2-0 +171504
7block 34 Takasaki, Yuichi (1557) Lost 0-2 -171487
8block 57 Suezawa, Ryo (1542) Won 2-0 +191506
top average opponent: 1573record: 3-2-1 new rating: 1506

Grand Prix Kobe 2001 (Invasion block) starting rating: 1498
round table opponent (rating) result Δrating
1block 29 Sakamoto, Keita (1500) Won 2-0 +191517
2block 189 Wakayama, Takahiro (1518) Won 2-0 +181535
3block 144 Yoshida, Satoshi (1535) Won 2-1 +181553
4block 116 Tadokoro, Masaya (1554) Lost 1-2 -181535
5block 119 Oomori, Kazuki (1510) Lost 1-2 -191516
6block 359 Katou, Ichirou (1519) Lost 1-2 -181498
7block 338 Wang, Ming Chee (1490) Lost 1-2 -181480
top average opponent: 1518record: 3-4 new rating: 1480

Grand Prix Kyoto 2000 (extended) starting rating: 1500
round table opponent (rating) result Δrating
1extended 24 Jinbu, Yousuke (1500) Won 2-1 +181518
2extended 92 Kaneko, Yoshinori (1518) Won 2-0 +181536
3extended 53 Nakamura, Hirobumi (1500) Lost 1-2 -191517
4extended 84 Ogaki, Atsushi (1500) Lost 0-2 -181499
5extended 166 Nakano, Yoshitaka (1465) Lost 1-2 -191480
6extended 219 Okada, Yu (1481) Won 2-0 +181498
7extended 191 Matsuyama, Makoto (1499) Lost 0-2 -181480
8extended 173 Miyauchi, Ken (1482) Won 2-0 +181498
top average opponent: 1493record: 4-4 new rating: 1498