Ogawa, Takashi
Current rating: 1566
Record: 19-16-2
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1567 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 508 | Fukuike, Masayuki (1500) | Won 2-0 | +161583 |
| 2sealed | 355 | Furusawa, Reona (1631) | Lost 0-2 | -171566 |
| 3sealed | 894 | Morishima, Noriaki (1494) | Won 2-1 | +171583 |
| 4sealed | 500 | Kawabe, Koki (1648) | Lost 0-2 | -171566 |
| top | average opponent: 1568record: 2-2 | new rating: 1566 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1566 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 642 | Shiota, Akihiko (1558) | Won 2-0 | +181584 |
| 2sealed | 504 | Ishikawa, Takuma 0419 (1583) | Won 2-1 | +181602 |
| 3sealed | 451 | Uchida, Tomoya (1539) | Lost 0-2 | -201582 |
| 4sealed | 726 | Inagaki, Yukihiro (1535) | Won 2-0 | +181600 |
| 5sealed | 142 | Imai, Ayato (1750) | Lost 0-2 | -161584 |
| 6sealed | 400 | Kawase, Yoshihiko (1605) | Lost 0-2 | -171567 |
| top | average opponent: 1595record: 3-3 | new rating: 1567 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 753 | Hirata, Syuichi (1500) | Won 2-0 | +171569 |
| 2standard | 650 | Saeki, Tadatoshi (1465) | Won 2-1 | +171586 |
| 3standard | 728 | Nagano, Reo (1576) | Won 2-1 | +171603 |
| 4standard | 18 | Shinohara, Gen (Tokyo) (1537) | Draw 1-1 | -11602 |
| 5standard | 202 | Tanahashi, Masayasu (1686) | Draw 1-1 | +21604 |
| 6standard | 428 | Shibata, Takeshi (1543) | Lost 0-2 | -191585 |
| 7standard | 693 | Tan, Bertram (1535) | Lost 0-2 | -191566 |
| top | average opponent: 1549record: 3-2-2 | new rating: 1566 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 649 | Iwanaga, Kohei (1505) | Won 2-1 | +181515 |
| 2sealed | 774 | Kawashima, Masashi (1520) | Won 2-0 | +181533 |
| 3sealed | 756 | Date, Tsutomu (1722) | Won 2-1 | +221555 |
| 4sealed | 622 | Takebayashi, Tomo (1884) | Lost 1-2 | -121543 |
| 5sealed | 722 | Kotouge, Tatsuya (1776) | Lost 1-2 | -141529 |
| 6sealed | 865 | Suzuki, Katsumasa (1516) | Won 2-1 | +171546 |
| 7sealed | 818 | Kasuga, Ryosuke (1778) | Won 2-0 | +231569 |
| 8sealed | 671 | Shinohara, Kazuaki (1666) | Lost 1-2 | -171552 |
| top | average opponent: 1671record: 5-3 | new rating: 1552 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 64 | Niimi, Yoshirou (1378) | Lost 1-2 | -211499 |
| 2sealed | 355 | Takada, Kenichirou (1485) | Lost 1-2 | -181481 |
| 3sealed | 435 | Nagamine, Taito (1382) | Won 2-0 | +161497 |
| top | average opponent: 1415record: 1-2 | new rating: 1497 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 194 | Inoue, Kei (1500) | Won 2-1 | +181518 |
| 2standard | 162 | Amayasu, Kazunori (1518) | Won 2-1 | +181536 |
| 3standard | 126 | Higaki, Takao (1769) | Won 2-1 | +221558 |
| 4standard | 104 | Ueno, Takamasa (1597) | Lost 0-2 | -171541 |
| 5standard | 181 | Fukushima, Yuuji (1561) | Lost 1-2 | -181523 |
| 6standard | 239 | Kudo, Koichi (1493) | Won 2-0 | +181541 |
| 7standard | 91 | Nishida, Yoshitaka (1537) | Lost 1-2 | -181523 |
| 8standard | 180 | Endo, Tadashi (1446) | Won 2-1 | +161539 |
| 9standard | 116 | Amao, Hiroshi (1456) | Lost 1-2 | -191520 |
| top | average opponent: 1542record: 5-4 | new rating: 1520 | ||