Ogawa, Takumi
Current rating: 1689
Record: 44-39-1
| Grand Prix Yokohama 2019 (modern) | starting rating: 1699 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 325 | Tsurusawa, Kenta (1549) | Lost 0-2 | -201679 |
| 4modern | 328 | Fukushima, Naoya (1568) | Won 2-0 | +161695 |
| 5modern | 424 | Yang, Liyan (1829) | Lost 1-2 | -161679 |
| 6modern | 553 | Furuta, Masayuki (1479) | Won 2-0 | +141693 |
| 7modern | 325 | Hasebe, Hironobu (1645) | Won 2-0 | +171710 |
| 8modern | 271 | Toriuchi, Daizo (1529) | Lost 1-2 | -211689 |
| top | average opponent: 1600record: 3-3 | new rating: 1689 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 459 | Ikeyama, Kei (1478) | Won 2-0 | +171549 |
| 3sealed | 38 | Mita, Ryoichi (1510) | Won 2-1 | +171566 |
| 4sealed | 58 | Ahlstrom, Christian (1865) | Lost 1-2 | -131553 |
| 5sealed | 192 | Morikawa, Taichi (1822) | Won 2-1 | +231576 |
| 6sealed | 322 | Tsuchiya, Yoshihiro (1399) | Lost 1-2 | -211555 |
| 7sealed | 243 | Takao, Akinao (1623) | Won 2-1 | +191574 |
| 8sealed | 192 | Kawasaki, Kentaro (1562) | Won 2-0 | +181592 |
| 9sealed | 106 | Okumura, Yuji (1891) | Won 2-1 | +231615 |
| 10draft | 625 | Okuno, Ryohei (1663) | Won 2-0 | +191634 |
| 11draft | 619 | Machida, Takahiro (1817) | Won 2-0 | +211655 |
| 12draft | 621 | Arai, Kenichiro (1804) | Won 2-0 | +211676 |
| 13draft | 601 | Nakao, Munenari (1706) | Lost 0-2 | -171659 |
| 14draft | 631 | Wu, Xuan (1819) | Won 2-0 | +211680 |
| 15draft | 679 | Fukudome, Yuu (1774) | Won 2-0 | +191699 |
| top | average opponent: 1695record: 11-3 | new rating: 1699 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 251 | Pinnisch, Markus (1559) | Lost 1-2 | -181534 |
| 3sealed | 590 | Shiwaku, Tsuyoshi (1792) | Lost 0-2 | -141520 |
| 4sealed | 831 | Kawamata, Daisuke (1596) | Lost 0-2 | -161504 |
| 5sealed | 986 | Kelsey, Jeannie (1408) | Won 2-0 | +161520 |
| 6sealed | 855 | Ebitani, Keisuke (1788) | Won 2-1 | +231543 |
| 7sealed | 620 | Suzuki, Akira (1549) | Won 2-0 | +181561 |
| 8sealed | 598 | Umehara, Kei (1706) | Lost 0-2 | -151546 |
| 9sealed | 527 | Terai, Tadayuki (1774) | Lost 1-2 | -141532 |
| top | average opponent: 1646record: 3-5 | new rating: 1532 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1380 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 126 | Kobayashi, Takeru (1471) | Won 2-0 | +191399 |
| 2modern | 265 | Konishi, Akio (1507) | Won 2-0 | +201419 |
| 3modern | 426 | Nam, Kyung-Min (1553) | Won 2-0 | +211440 |
| 4modern | 183 | Fukuoka, Sou (1628) | Lost 0-2 | -151425 |
| 5modern | 190 | Ozawa, Masashi (1533) | Lost 1-2 | -161409 |
| 6modern | 487 | Kashima, Akihiro (1688) | Won 2-0 | +231432 |
| 7modern | 583 | Nishitani, Yu 4006 (1538) | Won 2-0 | +201452 |
| 8modern | 275 | Satou, Naoki (1624) | Won 2-0 | +211473 |
| 9modern | 129 | Sekimoto, Kandai (1678) | Lost 1-2 | -141459 |
| 10modern | 341 | Kimura, Kazuki (1710) | Won 2-0 | +221481 |
| 11modern | 135 | Yoshimori, Sho (1883) | Won 2-0 | +251506 |
| 12modern | 148 | Mizuno, Masahito (1627) | Won 2-0 | +201526 |
| 13modern | 88 | Omuta, Shoya (1503) | Won 2-0 | +181544 |
| 14modern | 74 | Eguchi, Yukio (1754) | Won 2-0 | +221566 |
| 15modern | 52 | Aitken, William (1785) | Lost 0-2 | -141552 |
| top | average opponent: 1632record: 11-4 | new rating: 1552 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 504 | San, Tateisi (1500) | Lost 1-2 | -171460 |
| 2standard | 881 | Yoneyama, Naoki (1497) | Lost 0-2 | -181442 |
| 3standard | 1260 | Nishimura, Yusuke (1321) | Won 2-0 | +161458 |
| 4standard | 1061 | Otsu, Takeshi (1448) | Lost 0-2 | -181440 |
| 5standard | 1199 | Araki, Youhei (1339) | Lost 1-2 | -201420 |
| 6standard | 1153 | Nogimura, Ryo (1456) | Lost 0-2 | -171403 |
| 7standard | 1071 | Hayakawa, Yutaka (1354) | Lost 1-2 | -191384 |
| 8standard | 963 | Kounosu, Hiroaki (1199) | Won 2-0 | +141398 |
| 9standard | 842 | Tachibana, Korechika (1360) | Lost 0-2 | -181380 |
| top | average opponent: 1386record: 2-7 | new rating: 1380 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 177 | Sekiguchi, Kota (1564) | Lost 0-2 | -151412 |
| 2legacy | 726 | Bin Sawal, Mohammed Nasir (1432) | Won 2-1 | +181430 |
| 3legacy | 762 | Saito, Kai (1500) | Won 2-0 | +191449 |
| 4legacy | 732 | Ohtsu, Minami (1476) | Lost 0-2 | -171432 |
| 5legacy | 603 | Maruya, Takashi (1609) | Won 2-1 | +211453 |
| 6legacy | 418 | Enomoto, Keisuke (1497) | Won 2-0 | +191472 |
| 7legacy | 323 | Chiba, Takato (1643) | Draw 1-1 | +31475 |
| 8legacy | 371 | Knudson, Andrew (1540) | Won 2-0 | +191494 |
| 9legacy | 254 | Negishi, Takehiko (1562) | Lost 1-2 | -171477 |
| top | average opponent: 1536record: 5-3-1 | new rating: 1477 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1418 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 984 | Futamata, Yojiro (1518) | Won 2-1 | +201438 |
| 2standard | 483 | Yajima, Yasunori (1382) | Won 2-0 | +171455 |
| 3standard | 333 | Imamura, Hirotaka (1554) | Lost 1-2 | -161439 |
| 4standard | 496 | Fong, Chun Ho (1568) | Won 2-0 | +201459 |
| 5standard | 372 | Matsuda, Kenji (1509) | Lost 0-2 | -171442 |
| 6standard | 556 | Nakamura, Shou (1470) | Won 2-1 | +181460 |
| 7standard | 569 | Ootubo, Masashi (1515) | Lost 1-2 | -171443 |
| 8standard | 783 | Ishino, Katsunori (1536) | Lost 0-2 | -161427 |
| top | average opponent: 1507record: 4-4 | new rating: 1427 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 557 | Yagawa, Masataka (1602) | Lost 0-2 | -151432 |
| 2sealed | 762 | Tanimoto, Masashi (1490) | Lost 0-2 | -171415 |
| 3sealed | 1145 | Shinagawa, Kazunari (1536) | Lost 0-2 | -161399 |
| 4sealed | 1210 | Anzai, Junpei (1448) | Won 2-0 | +191418 |
| 5sealed | 1131 | Toyoda, Ryosuke (1443) | Won 2-1 | +191437 |
| 6sealed | 904 | Iwata, Riki (1406) | Lost 0-2 | -191418 |
| top | average opponent: 1487record: 2-4 | new rating: 1418 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 699 | Wang, Zimo 4520 (1500) | Won 2-0 | +181518 |
| 2standard | 58 | Kinoshita, Masahiro (1517) | Lost 0-2 | -181500 |
| 3standard | 765 | Kondo, Fumiya (1498) | Lost 0-2 | -181482 |
| 4standard | 1045 | Okamura, Kazuyoshi (1458) | Won 2-0 | +181500 |
| 5standard | 925 | Okamura, Ryoma (1635) | Lost 0-2 | -161484 |
| 6standard | 895 | Matsubara, Tohru (1591) | Lost 1-2 | -161468 |
| 7standard | 780 | Wang, Zimo 5256 (1469) | Lost 0-2 | -181450 |
| 8standard | 660 | Imai, Rio (1442) | Won 2-1 | +181468 |
| 9standard | 541 | Arai, Ikki (1321) | Lost 0-2 | -211447 |
| top | average opponent: 1492record: 3-6 | new rating: 1447 | ||