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Koike, Katsutoshi
Current rating: 1545

Grand Prix Nagoya 2020 (pioneer) starting rating: 1416
round table opponent (rating) result Δrating
1pioneer 60 Ikeda, Yuuki (1564) Won 2-1 +201436
2pioneer 64 Yamada, Kazuki (1695) Lost 0-2 -131423
3pioneer 517 Fujii, Tomoya (1491) Won 2-1 +191442
4pioneer 324 Fujii, Mikiya (1402) Won 2-0 +171459
5pioneer 251 Horibe, Kenji (1617) Won 2-1 +211480
6pioneer 235 Katayama, Satoru (1570) Won 2-0 +201500
7pioneer 104 Kuribara, Shuta (1693) Won 2-1 +211521
8pioneer 64 Ooyama, Yuusuke (1636) Won 2-1 +211542
9pioneer 18 Ninomiya, Souta (1853) Won 2-1 +231565
10pioneer 16 Aoki, Takeyuki (1534) Won 2-1 +171582
11pioneer 6 Oiso, Kenji (1846) Lost 0-2 -131569
12pioneer 14 Canonica, Kevin (1837) Lost 1-2 -131556
13pioneer 60 Numata, Yusuke (1792) Lost 0-2 -141542
14pioneer 53 Fujiya, Takahiro (1690) Won 2-1 +211563
15pioneer 46 Miura, Shuta (1577) Lost 1-2 -181545
top average opponent: 1653record: 10-5 new rating: 1545

Grand Prix Nagoya 2019 (ELD standard) starting rating: 1408
round table opponent (rating) result Δrating
1standard 423 Yamamoto, Takashi (1462) Won 2-1 +191427
2standard 4 Takanuki, Akito (1520) Lost 1-2 -161411
3standard 663 Yamaguchi, Hiroshi1998 (1483) Draw 1-1 +11412
4standard 621 Yagi, Kazuhiro (1508) Won 2-0 +201432
5standard 408 Kunitaka, Kikuchi (1538) Lost 1-2 -161416
top average opponent: 1502record: 2-2-1 new rating: 1416

Grand Prix Chiba 2019 (M20 limited) starting rating: 1372
round table opponent (rating) result Δrating
1sealed 107 Hoshi, Masaru (1385) Won 2-0 +191391
2sealed 29 Matsumoto, Yuki1423 (1624) Won 2-0 +221413
3sealed 295 Wada, Yasutaka (1697) Lost 0-2 -131400
4sealed 394 Tsuda, Tomohiro (1507) Lost 1-2 -161384
5sealed 653 Watanabe, Yusuke 3633 (1599) Won 2-1 +221406
6sealed 466 Kawahara, Masanobu (1408) Won 2-0 +181424
7sealed 357 Izumisawa, Ryo (1548) Lost 0-2 -161408
top average opponent: 1538record: 4-3 new rating: 1408

Grand Prix Kyoto 2019 (RNA standard) starting rating: 1400
round table opponent (rating) result Δrating
1standard 186 Tamura, Yuto (1610) Lost 1-2 -151385
2standard 554 Yasunaga, Takahiro (1482) Lost 0-2 -161369
3standard 917 Isomura, Takuya (1405) Won 2-1 +191388
4standard 745 Udagawa, Toru (1535) Lost 1-2 -161372
top average opponent: 1508record: 1-3 new rating: 1372

Grand Prix Kobe 2017 (modern) starting rating: 1446
round table opponent (rating) result Δrating
3modern 129 Murakami, Akinori (1480) Won 2-0 +191465
4modern 137 Nakatani, Shinji (1764) Lost 1-2 -131452
5modern 589 Okamoto, Takaki (1485) Lost 1-2 -171435
6modern 557 Shibata, Yuuki (1518) Lost 0-2 -171418
7modern 875 Kakimoto, Yuki (1396) Lost 1-2 -181400
top average opponent: 1528record: 1-4 new rating: 1400

Grand Prix Chiba 2016 (legacy) starting rating: 1467
round table opponent (rating) result Δrating
3legacy 584[anonymous] Won 2-1 +241491
4legacy 149 Ge, Jing (1548) Lost 1-2 -171474
5legacy 317 Nomiya, Yohei (1546) Lost 1-2 -171457
6legacy 606 Ishihara, Koji (1551) Won 2-0 +201477
7legacy 264 Koyama, Yuji (1762) Lost 0-2 -131464
8legacy 532 Tay, Ken (1453) Lost 1-2 -181446
top average opponent: 1608record: 2-4 new rating: 1446

Grand Prix Chiba 2015 (MM2 limited) starting rating: 1463
round table opponent (rating) result Δrating
1sealed 72 Asakawa, Kazuki (1500) Won 2-0 +191482
2sealed 111 Matsubara, Hidenori (1518) Lost 0-2 -171465
3sealed 308 Oota, Nobuyuki2247 (1501) Won 2-1 +181483
4sealed 179 Okumura, Tatsurou (1522) Won 2-1 +191502
5sealed 191 Saitou, Yuu8520 (1533) Lost 0-2 -171485
6sealed 197 Asanuma, Hodaka (1531) Lost 1-2 -181467
top average opponent: 1517record: 3-3 new rating: 1467

Grand Prix Shizuoka 2015 (KTK limited) starting rating: 1500
round table opponent (rating) result Δrating
1sealed 749 Koizumi, Junichi (1500) Lost 0-2 -181482
2sealed 1009 Ishino, Katsunori (1442) Lost 1-2 -191463
3sealed 1064 Ozaki, Sota (1463) Won 2-0 +181481
4sealed 999 Mialaret, Gary (1486) Lost 0-2 -181463
top average opponent: 1473record: 1-3 new rating: 1463