Koziol, Eric
Current rating: 1389
Record: 28-40-3
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1371 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 41 | Leung, Victor (1514) | Won 2-1 | +201391 |
| 4pioneer | 46 | Nakayama, Satoshi (1510) | Lost 1-2 | -161375 |
| 5pioneer | 328 | Sugizaki, Shunsuke (1591) | Won 2-1 | +221397 |
| 6pioneer | 180 | Takada, Narumasa (1535) | Won 2-1 | +211418 |
| 7pioneer | 124 | Nishida, Makoto (1699) | Lost 0-2 | -131405 |
| 8pioneer | 198 | Mori, Shuichi (1544) | Lost 0-2 | -161389 |
| top | average opponent: 1565record: 3-3 | new rating: 1389 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 430 | Ogsawara, Akira (1368) | Won 2-0 | +171414 |
| 4standard | 127 | Nishimoto, Sosuke (1677) | Lost 1-2 | -131401 |
| 5standard | 326 | Oikawa, Ryusuke (1608) | Lost 0-2 | -141387 |
| 6standard | 308 | Nakamura, Shunsuke (1488) | Lost 0-2 | -161371 |
| top | average opponent: 1535record: 1-3 | new rating: 1371 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1375 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 309 | Terasawa, Kazuya (1777) | Lost 1-2 | -111364 |
| 4modern | 605 | Brunton, David (1530) | Won 2-0 | +211385 |
| 5modern | 347 | Ishii, Kuya (1599) | Won 2-1 | +211406 |
| 6modern | 259 | Yi, Sanghee (1614) | Lost 0-2 | -141392 |
| 7modern | 304 | Hee, Chung Wye (1633) | Lost 0-2 | -131379 |
| 8modern | 412 | Soeda, Kohei (1404) | Won 2-1 | +181397 |
| top | average opponent: 1593record: 3-3 | new rating: 1397 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1402 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 232 | Zhou, Zhaoqi (1577) | Lost 0-2 | -151387 |
| 4standard | 643 | Kojima, Kenta (1425) | Lost 0-2 | -171370 |
| 5standard | 478 | Tada, Masayuu (1551) | Won 2-1 | +211391 |
| 6standard | 564 | Chen, Jiabin (1493) | Lost 1-2 | -161375 |
| top | average opponent: 1512record: 1-3 | new rating: 1375 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 494 | Kuroda, Yoshirou (1406) | Lost 0-2 | -191429 |
| 4standard | 505 | Kiwanont, Sukhum (1821) | Lost 0-2 | -111418 |
| 5standard | 878 | Saito, Tomohiro (1501) | Lost 0-2 | -161402 |
| top | average opponent: 1576record: 0-3 | new rating: 1402 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 145 | Kakumae, Teruya (2090) | Lost 0-2 | -91479 |
| 4legacy | 409 | Ricci, Joseph (1639) | Lost 1-2 | -151464 |
| 5legacy | 528 | Kamioka, Masayuki (1564) | Lost 1-2 | -161448 |
| top | average opponent: 1764record: 0-3 | new rating: 1448 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 53 | Mouri, Yusuke (1647) | Lost 0-2 | -151457 |
| 4sealed | 663 | Uemura, Akira (1517) | Won 2-1 | +191476 |
| 5sealed | 394 | Okada, Naoya (1728) | Won 2-1 | +231499 |
| 6sealed | 253 | Iwasaki, Daisuke (1511) | Won 2-0 | +181517 |
| 7sealed | 74 | Saito, Yuki (1591) | Lost 0-2 | -171500 |
| 8sealed | 220 | Kuze, Shouta (1801) | Lost 1-2 | -121488 |
| top | average opponent: 1632record: 3-3 | new rating: 1488 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 60 | Ishikura, Nobuyuki (1576) | Lost 0-2 | -171551 |
| 3sealed | 810 | Matsumura, Hideyuki (1464) | Lost 0-2 | -201531 |
| 4sealed | 933 | Noguchi, Shunnsuke (1477) | Lost 0-2 | -191512 |
| 5sealed | 983 | Araki, Tatsunori (1629) | Lost 1-2 | -161496 |
| 6sealed | 1008 | Kounosu, Hiroaki (1144) | Lost 0-2 | -241472 |
| top | average opponent: 1458record: 0-5 | new rating: 1472 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 582 | Oginuma, Kiichi (1480) | Lost 1-2 | -191514 |
| 3modern | 748 | Teramoto, Tsubasa (1461) | Won 2-1 | +171531 |
| 4modern | 894 | Oh, Wooram (1497) | Won 2-0 | +171548 |
| 5modern | 597 | Cheung, Zack (1531) | Won 2-1 | +181566 |
| 6modern | 368 | Gibralta, Thierry (1621) | Lost 0-2 | -171549 |
| 7modern | 532 | Kubota, Sin (1530) | Lost 1-2 | -181531 |
| 8modern | 715 | Ueki, Junichi (1404) | Won 2-0 | +151546 |
| 9modern | 501 | Kanayama, Haruki (1540) | Won 2-1 | +181564 |
| 10modern | 356 | Omonishi, Kojiro (1620) | Won 2-0 | +191583 |
| 11modern | 231 | Suda, Kazuho (1540) | Lost 0-2 | -181565 |
| 12modern | 307 | Xu, Siying (1543) | Won 2-0 | +171582 |
| 13modern | 229 | Takeuchi, Akinari (1672) | Won 2-0 | +201602 |
| 14modern | 131 | Katagiri, Kazushi (1699) | Lost 1-2 | -161586 |
| 15modern | 191 | Kobayashi, Yosuke (1636) | Lost 0-2 | -181568 |
| top | average opponent: 1555record: 8-6 | new rating: 1568 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 521 | Sato, Yusei (1603) | Lost 0-2 | -161489 |
| 4standard | 464 | Soeda, Kohei (1505) | Won 2-0 | +181507 |
| 5standard | 508 | Kang, Jonghoon (1503) | Lost 1-2 | -181489 |
| 6standard | 568 | Itoh, Akira (1382) | Won 2-0 | +161505 |
| 7standard | 486 | Nakayama, Kousuke (1534) | Won 2-0 | +191524 |
| 8standard | 302 | Yabuta, Junichi (1781) | Won 2-1 | +221546 |
| 9standard | 156 | Okino, Ryuu (1614) | Lost 0-2 | -171529 |
| 10standard | 218 | Oono, Takamasa (1575) | Lost 1-2 | -171512 |
| 11standard | 353 | Terai, Tadayuki (1563) | Lost 0-2 | -171495 |
| 12standard | 356 | Fujiwara, Mizuki (1489) | Won 2-1 | +181513 |
| 13standard | 298 | Matsuyama, Takuya (1496) | Won 2-1 | +181531 |
| 14standard | 238 | Takaya, Syouichi (1561) | Lost 1-2 | -181513 |
| 15standard | 254 | Saito, Toru (1607) | Won 2-1 | +201533 |
| top | average opponent: 1555record: 7-6 | new rating: 1533 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 127 | Nguyen, Edward (1584) | Won 2-1 | +201520 |
| 4legacy | 144 | Yu, Lianbo (1521) | Lost 0-2 | -181502 |
| 5legacy | 189 | Katougi, Masanori (1535) | Draw 1-1 | 01502 |
| 6legacy | 365 | Ohta, Masataka (1541) | Won 2-0 | +191521 |
| 7legacy | 223 | Katou, Yuuta (1566) | Lost 0-2 | -171504 |
| 8legacy | 379 | Moki, Hiromu (1564) | Draw 1-1 | +11505 |
| 9legacy | 519 | Seki, Kazuya (1513) | Draw 1-1 | 01505 |
| top | average opponent: 1546record: 2-2-3 | new rating: 1505 | ||