Sano, Kouki
Current rating: 1426
Record: 18-24-1
| Grand Prix Yokohama 2019 (modern) | starting rating: 1404 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 610 | Iida, Satoru (1463) | Won 2-1 | +191423 |
| 2modern | 106 | Kudo, Koichi (1691) | Won 2-0 | +221445 |
| 3modern | 500 | Kawai, Hiroki1988 (1569) | Lost 0-2 | -151430 |
| 4modern | 672 | Kitayama, Masaya (1879) | Lost 1-2 | -111419 |
| 5modern | 634 | Sasaki, Yusuke 4501 (1675) | Lost 0-2 | -131406 |
| 6modern | 904 | Ono, Kentaro (1499) | Won 2-1 | +201426 |
| top | average opponent: 1629record: 3-3 | new rating: 1426 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 378 | Takahashi, Kazuki (1461) | Draw 1-1 | 01498 |
| 2legacy | 349 | Matoba, Keisuke (1485) | Lost 1-2 | -191479 |
| 3legacy | 577 | Ito, Kensuke (1324) | Lost 0-2 | -201459 |
| 4legacy | 636 | Naritomi, Takumi (1481) | Lost 1-2 | -181441 |
| 5legacy | 629 | Sakurai, Tatsumasa (1452) | Lost 0-2 | -181423 |
| 6legacy | 587 | Ishikawa, Hayate (1316) | Lost 0-2 | -201403 |
| 7legacy | 515 | Yamanashi, Takeshi (1429) | Lost 0-2 | -171386 |
| 8legacy | 458 | Nakagawa, Natsuki (1376) | Won 2-1 | +181404 |
| top | average opponent: 1415record: 1-6-1 | new rating: 1404 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 388 | Komoto, Ryosuke (1500) | Won 2-0 | +181519 |
| 2modern | 305 | Hamano, Kouhei (1611) | Lost 1-2 | -161503 |
| 3modern | 992 | Takeuchi, Ippei (1502) | Won 2-0 | +181521 |
| 4modern | 489 | Mochizuki, Yuki (1557) | Lost 1-2 | -181503 |
| 5modern | 984 | Okada, Taro (1499) | Won 2-1 | +181521 |
| 6modern | 455 | Kojima, Yuusuke (1457) | Lost 0-2 | -191502 |
| 7modern | 655 | Yamaha, Yasuhiro (1497) | Won 2-1 | +181520 |
| 8modern | 718 | Takata, Mutsumu (1307) | Lost 0-2 | -221498 |
| top | average opponent: 1491record: 4-4 | new rating: 1498 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 635 | Nagaoka, Takayuki (1775) | Won 2-0 | +231489 |
| 2legacy | 132 | Nakakura, Satoshi (1496) | Won 2-1 | +191508 |
| 3legacy | 29 | Yashiki, Kouichi (1343) | Lost 0-2 | -211487 |
| 4legacy | 539 | Inagawa, Katsuya (1511) | Lost 0-2 | -181469 |
| 5legacy | 583 | Kurihara, Mitsuaki (1579) | Won 2-0 | +201489 |
| 6legacy | 446 | Komiya, Yuki (1531) | Won 2-1 | +191508 |
| 7legacy | 441 | Fuchita, Shouhei (1718) | Won 2-0 | +221530 |
| 8legacy | 164 | Morikawa, Taichi (1669) | Lost 0-2 | -161514 |
| 9legacy | 269 | Murata, Shunya (1584) | Won 2-0 | +191533 |
| 10legacy | 196 | Huang, Rong Fei (1564) | Won 2-0 | +191552 |
| 11legacy | 110 | Iwasaki, Yutaka (1573) | Lost 1-2 | -181534 |
| 12legacy | 188 | Shirakawa, Hiroaki (1527) | Lost 0-2 | -181516 |
| 13legacy | 247 | Yamakita, Yuya (1610) | Lost 1-2 | -161500 |
| 14legacy | 271 | Makoto, Mituduka (1528) | Won 2-1 | +181518 |
| 15legacy | 253 | Ishihara, Koji (1561) | Lost 0-2 | -171501 |
| top | average opponent: 1571record: 8-7 | new rating: 1501 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 572 | Urata, Kengo (1500) | Lost 0-2 | -181482 |
| 2standard | 974 | Shimadu, Naofumi (1604) | Lost 1-2 | -161466 |
| 3standard | 1521 | Urano, Syouhei (1471) | Won 2-1 | +181484 |
| 4standard | 1213 | Saeki, Tadatoshi (1431) | Lost 0-2 | -191465 |
| 5standard | 1362 | Spiteri, Sam (1465) | Won 2-0 | +181483 |
| 6standard | 1277 | Emi, Shin'ichirou (1521) | Lost 0-2 | -171466 |
| top | average opponent: 1499record: 2-4 | new rating: 1466 | ||