Koyanagi, Akio
Current rating: 1296
Record: 10-23
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1346 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 85 | Ataka, Kazuma (1538) | Lost 0-2 | -151331 |
| 2standard | 588 | Yasuda, Hiroki (1594) | Lost 0-2 | -131318 |
| 3standard | 772 | Suzuki, Kenta7482 (1410) | Won 2-0 | +201338 |
| 4standard | 738 | Shinhama, Takahiko (1550) | Lost 1-2 | -151323 |
| 5standard | 776 | Uehara, Shingo (1462) | Won 2-0 | +211344 |
| 6standard | 596 | Tsumagari, Shuhei (1404) | Lost 1-2 | -171327 |
| 7standard | 580 | Kamiya, Kazuhiro (1454) | Lost 0-2 | -161311 |
| 8standard | 518 | Suda, Yoshihiro (1449) | Lost 1-2 | -151296 |
| top | average opponent: 1482record: 2-6 | new rating: 1296 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 165 | Tanabe, Masatoshi (1410) | Lost 0-2 | -181409 |
| 2standard | 727 | Hisada, Kazuhiro (1430) | Lost 0-2 | -181391 |
| 3standard | 1170 | Watanabe, Yusuke (1631) | Won 2-1 | +221413 |
| 4standard | 1162 | Inoue, Takuto (1464) | Lost 0-2 | -171396 |
| 5standard | 1194 | Mizuno, Shiori (1346) | Lost 0-2 | -191377 |
| 6standard | 1147 | Konishi, Kouhei (1450) | Lost 0-2 | -161361 |
| 7standard | 1072 | Shamoto, Takumi (1426) | Won 2-1 | +191380 |
| 8standard | 935 | Jimichi, Makoto (1415) | Lost 1-2 | -171363 |
| 9standard | 841 | Shirahata, Ichiho (1428) | Lost 1-2 | -171346 |
| top | average opponent: 1444record: 2-7 | new rating: 1346 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 664 | Imamura, Norihide (1461) | Lost 1-2 | -181459 |
| 2standard | 1092 | Utsugi, Ryo (1482) | Lost 1-2 | -181441 |
| 3standard | 1568 | Satou, Marin (1465) | Won 2-1 | +181459 |
| 4standard | 1336 | Ota, Kyosuke (1447) | Lost 0-2 | -181441 |
| 5standard | 1325 | Arita, Kazuhiro (1424) | Won 2-0 | +181459 |
| 6standard | 1284 | Suzuki, Issei (1567) | Lost 0-2 | -161443 |
| 7standard | 1169 | Murata, Shunya (1567) | Lost 0-2 | -161427 |
| top | average opponent: 1487record: 2-5 | new rating: 1427 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 291 | Kaneko, Mitsutaka (1498) | Lost 0-2 | -181482 |
| 2standard | 814 | Sasaki, Kazuo (1419) | Lost 0-2 | -191463 |
| 3standard | 1194 | Shibata, Ryosuke (1448) | Lost 0-2 | -181445 |
| 4standard | 1176 | Fujii, Mikiya (1360) | Lost 0-2 | -201425 |
| 5standard | 1085 | Sekimoto, Wataru (1428) | Won 2-1 | +181443 |
| 6standard | 930 | Ando, Toshiki (1394) | Won 2-1 | +171460 |
| 7standard | 746 | Fukunaga, Nao (1424) | Lost 0-2 | -181442 |
| 8standard | 666 | Izumi, Yuta (1448) | Won 2-1 | +181460 |
| 9standard | 520 | Miyoshi, Nobumitsu (1417) | Won 2-1 | +171477 |
| top | average opponent: 1426record: 4-5 | new rating: 1477 | ||