Ogawa, Masafumi
Current rating: 1663
Record: 32-23-3 (GP) / 4-4 (professional)
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1625 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 24 | Takano, Kouhei (1583) | Won 2-0 | +171642 |
| 2standard | 62 | Haruta, Takatsugu (1441) | Draw 1-1 | -41638 |
| 3standard | 450 | Igarashi, Takuto (1504) | Lost 0-2 | -201618 |
| 4standard | 626 | Kozawa, Kazuki (1516) | Won 2-0 | +161634 |
| 5standard | 412 | Yoshikawa, Hidenobu (1579) | Won 2-0 | +171651 |
| 6standard | 260 | Ishikawa, Tetsuo (1549) | Won 2-1 | +161667 |
| 7standard | 167 | Nishikawa, Ryota (1623) | Won 2-1 | +171684 |
| 8standard | 95 | Sasagawa, Hitoshi (1524) | Lost 1-2 | -211663 |
| top | average opponent: 1540record: 5-2-1 | new rating: 1663 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1641 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 598 | Tokunaga, Takayuki (1460) | Lost 1-2 | -211620 |
| 2sealed | 901 | Zhao, Bu (1323) | Won 2-0 | +131633 |
| 3sealed | 674 | Ozawa, Takahiro (1661) | Won 2-1 | +181651 |
| 4sealed | 517 | Ohira, Takashi (1481) | Lost 0-2 | -211630 |
| 5sealed | 837 | Harada, Dampei (1623) | Won 2-1 | +181648 |
| 6sealed | 589 | Miyawaki, Wataru (1469) | Won 2-0 | +151663 |
| 7sealed | 488 | Nakamura, Tamon (1533) | Lost 1-2 | -201643 |
| 8sealed | 413 | Nakanishi, Yutaka (1642) | Lost 1-2 | -181625 |
| top | average opponent: 1524record: 4-4 | new rating: 1625 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1644 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 200 | Asada, Hiromasa (1454) | Won 2-0 | +141658 |
| 2modern | 584 | Kamimura, Fumihiro (1720) | Lost 1-2 | -161642 |
| 3modern | 1070 | Katsu, Masahiro (1447) | Won 2-1 | +141656 |
| 4modern | 602 | Katou, Ryou (1515) | Won 2-0 | +161672 |
| 5modern | 430 | Sasaki, Shin (1547) | Won 2-1 | +151687 |
| 6modern | 262 | Yen, Yung Ta (1478) | Lost 1-2 | -211666 |
| 7modern | 587 | Watanabe, Daisuke (1513) | Won 2-0 | +151681 |
| 8modern | 307 | Odachi, Kentarou (1541) | Lost 1-2 | -211660 |
| 9modern | 528 | Inagaki, Yukihiro (1611) | Lost 1-2 | -191641 |
| top | average opponent: 1536record: 5-4 | new rating: 1641 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 764 | Masutani, Kazuhiro (1520) | Lost 0-2 | -181496 |
| 2standard | 914 | Itou, Tadashi (1446) | Won 2-0 | +171513 |
| 3standard | 836 | Cronin, Sean (1463) | Won 2-0 | +171530 |
| 4standard | 671 | Ikoma, Tomoyuki (1493) | Lost 0-2 | -181512 |
| 5standard | 668 | Nakayama, Takuya (1726) | Won 2-0 | +221534 |
| 6standard | 731 | Doi, Kento (1508) | Won 2-0 | +171551 |
| 7standard | 491 | Yamamoto, Kento (1540) | Won 2-1 | +181569 |
| 8standard | 301 | Nakano, Yoshitaka (1796) | Won 2-0 | +221591 |
| 9standard | 205 | Sato, Tatsuo (1508) | Won 2-0 | +161607 |
| 10standard | 48 | Mitachi, Yuuki (1529) | Won 2-0 | +171624 |
| 11standard | 46 | Yada, Kazuki (1686) | Lost 1-2 | -171607 |
| 12standard | 64 | Kitaoka, Takaaki (1587) | Won 2-0 | +181625 |
| 13standard | 44 | Katou, Shin'ya (1565) | Won 2-1 | +171642 |
| 14standard | 48 | Kaga, Noriya (1627) | Lost 1-2 | -191623 |
| 15standard | 75 | Yabuta, Junichi (1762) | Won 2-0 | +211644 |
| top | average opponent: 1584record: 11-4 | new rating: 1644 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 158 | Oohashi, Toshiyuki (1607) | Won 2-0 | +211463 |
| 4modern | 113 | Kawasaki, Takeshi (1482) | Won 2-0 | +181481 |
| 5modern | 28 | Takano, Yuuki (1566) | Won 2-0 | +201501 |
| 6modern | 68 | Aryabhima, Rahman (1793) | Won 2-1 | +231524 |
| 7modern | 57 | Banno, Rikito (1610) | Draw 1-1 | +11525 |
| 8modern | 56 | Itou, Manabu (1591) | Draw 1-1 | +21527 |
| 9modern | 74 | Kubota, Yuuhi (1834) | Lost 0-2 | -131514 |
| top | average opponent: 1640record: 4-1-2 | new rating: 1514 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 205 | Hoshi, Tatsurou (1468) | Won 2-0 | +181495 |
| 2sealed | 38 | N., Satoshi (1518) | Lost 1-2 | -181477 |
| 3sealed | 284 | Yang, Shao-fu (1506) | Lost 1-2 | -171460 |
| 4sealed | 348 | Tsuchiya, Yoshihito (1462) | Lost 0-2 | -181442 |
| top | average opponent: 1489record: 1-3 | new rating: 1442 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 106 | Takeda, Hiroki (1697) | Lost 0-2 | -151513 |
| 3sealed | 111 | Ootsuka, Hitoki (1500) | Won 2-1 | +171530 |
| 4sealed | 101 | Takesue, Chikara (1450) | Lost 1-2 | -191511 |
| 5sealed | 108 | Ootsuka, Koutarou (1760) | Lost 1-2 | -141497 |
| 6sealed | 117 | Murata, Shouta (1557) | Lost 0-2 | -171480 |
| 7sealed | 97 | Masuyama, Yuko (1371) | Won 2-0 | +161496 |
| 8sealed | 76 | Ueda, Shigeki (1419) | Lost 1-2 | -191477 |
| top | average opponent: 1536record: 2-5 | new rating: 1477 | ||
| Pro Tour Los Angeles 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 51 | Montgomery, Kyle (1500) | Lost 0-2 | -181482 |
| 2extended | 153 | Vanderbeek, Aaron (1597) | Won 2-0 | +201502 |
| 3extended | 68 | Fox, Adam M (1623) | Won 2-0 | +201522 |
| 4extended | 48 | Shiels, David (1630) | Won 2-1 | +201542 |
| 5extended | 37 | Reeves, Neil (1804) | Lost 0-2 | -131529 |
| 6extended | 63 | Morita, Masahiko (2093) | Won 2-0 | +271556 |
| 7extended | 46 | Alcaraz, Aniol (1893) | Lost 1-2 | -121544 |
| 8extended | 50 | Chambers, Adam (1620) | Lost 0-2 | -161528 |
| top | average opponent: 1720record: 4-4 | new rating: 1528 | ||