Kohki, Ogawa
Current rating: 1325
Record: 10-21
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1393 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 678 | Machida, Kenji (1624) | Lost 1-2 | -141379 |
| 2standard | 823 | Takeuchi, Yosuke (1457) | Lost 1-2 | -161363 |
| 3standard | 1046 | Tanabe, Kazuya (1125) | Won 2-1 | +141377 |
| 4standard | 878 | Naganawa, Satoshi (1472) | Lost 0-2 | -171360 |
| 5standard | 982 | Atsuji, Makoto (1425) | Lost 0-2 | -161344 |
| 6standard | 910 | Kazumasa, Akihiro (1326) | Lost 0-2 | -191325 |
| top | average opponent: 1405record: 1-5 | new rating: 1325 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 646 | Aoi, Yusuke (1500) | Lost 1-2 | -171382 |
| 2standard | 777 | Takayama, Hiroki (1479) | Won 2-0 | +201402 |
| 3standard | 931 | Inoue, Takuya (1479) | Won 2-1 | +201422 |
| 4standard | 376 | Miyagawa, Yuuta (1523) | Lost 1-2 | -171405 |
| 5standard | 835 | Suzuki, Uta (1484) | Won 2-1 | +201425 |
| 6standard | 680 | Take, Toshiharu (1509) | Lost 1-2 | -171408 |
| 7standard | 661 | Koyanagi, Takuya (1570) | Lost 0-2 | -151393 |
| top | average opponent: 1506record: 3-4 | new rating: 1393 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1406 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 203 | Takei, Jun (1500) | Lost 1-2 | -161390 |
| 2modern | 438 | iwasaki, hiromi (1447) | Won 2-0 | +191409 |
| 3modern | 369 | Tanaka, Shingo (Kanagawa) (1499) | Won 2-0 | +191428 |
| 4modern | 665 | Oonishi, Tatsuya (1545) | Lost 1-2 | -161412 |
| 5modern | 466 | Ono, Tomonori (1483) | Lost 0-2 | -161396 |
| 6modern | 511 | Ootani, Yuusuke (1477) | Lost 1-2 | -171379 |
| 7modern | 435 | Abe, Jun (1469) | Won 2-0 | +201399 |
| 8modern | 342 | Tabata, Kenichirou (1438) | Lost 1-2 | -171382 |
| 9modern | 293 | Yoshimura, Motoki (1328) | Won 2-1 | +171399 |
| top | average opponent: 1465record: 4-5 | new rating: 1399 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 234 | Katsu, Masahiro (1224) | Lost 0-2 | -231439 |
| 2extended | 262 | Koshimura, Takeshi (1542) | Lost 0-2 | -161423 |
| 3extended | 265 | M., Toshiya (1464) | Lost 0-2 | -171406 |
| top | average opponent: 1410record: 0-3 | new rating: 1406 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 118 | Imamura, Hirotaka (1449) | Lost 0-2 | -191481 |
| 2extended | 408 | Oikawa, Masafumi (1482) | Won 2-1 | +181499 |
| 3extended | 170 | Ide, Katsuhiro (1577) | Lost 0-2 | -161483 |
| 4extended | 454 | Yakugawa, Ryuusei (1482) | Won 2-0 | +181501 |
| 5extended | 365 | Ozawa, Tetsuya (1539) | Lost 1-2 | -181483 |
| 6extended | 337 | Yoshizawa, Toshio (1280) | Lost 0-2 | -211462 |
| top | average opponent: 1468record: 2-4 | new rating: 1462 | ||