Tashiro, Kouhei
Current rating: 1657
Record: 24-14
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1634 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 156 | Tamura, Kenji (1527) | Won 2-0 | +161650 |
| 2sealed | 115 | Takehana, Atsushi (1482) | Won 2-1 | +151665 |
| 3sealed | 138 | Izumisawa, Ryo (1544) | Won 2-1 | +151680 |
| 4sealed | 89 | Kawasaki, Keita (1755) | Lost 1-2 | -161664 |
| 5sealed | 482 | Nakazawa, Yosuke (1409) | Won 2-0 | +131677 |
| 6sealed | 177 | Yoon, SooHan (1640) | Lost 0-2 | -181659 |
| 7sealed | 392 | Osako, Sho (1543) | Won 2-1 | +151674 |
| 8sealed | 331 | Miwa, Ryou (1716) | Lost 0-2 | -171657 |
| top | average opponent: 1577record: 5-3 | new rating: 1657 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 106 | Matubayashi, Kazunori (1611) | Lost 1-2 | -181569 |
| 2standard | 998 | Yoshihara, Yamato (1560) | Won 2-0 | +181587 |
| 3standard | 888 | Yanagi, Shinichiro (1449) | Won 2-1 | +161603 |
| 4standard | 811 | Tanaka, Yuichi (1518) | Lost 1-2 | -201583 |
| 5standard | 1177 | Shinagawa, Kazunari (1562) | Won 2-0 | +181601 |
| 6standard | 896 | Satou, Fumihiko (1428) | Won 2-0 | +151616 |
| 7standard | 580 | Nagai, Mamoru (1691) | Lost 1-2 | -171599 |
| 8standard | 609 | Higuchi, Akashi (1606) | Won 2-1 | +181617 |
| 9standard | 368 | Ogura, Syunichi (1541) | Won 2-1 | +171634 |
| 10standard | 268 | Ichikawa, Hiroshi (1432) | Won 2-0 | +141648 |
| 11standard | 283 | Takahashi, Naoya (1714) | Lost 0-2 | -171631 |
| 12standard | 306 | Kudou, Takunori (1583) | Lost 1-2 | -181613 |
| 13standard | 310 | Kawamura, Kazushi (1780) | Won 2-0 | +211634 |
| top | average opponent: 1575record: 8-5 | new rating: 1634 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 295 | Miura, Shintaro (1426) | Lost 0-2 | -211535 |
| 2sealed | 516 | Tsuchiya, Ryuichi (1482) | Lost 0-2 | -191516 |
| 3sealed | 576 | Saeki, Tadatoshi (1463) | Won 2-0 | +171533 |
| 4sealed | 417 | Kimura, Daichi (1481) | Won 2-0 | +171550 |
| 5sealed | 382 | Chee, Crisler (1586) | Won 2-0 | +191569 |
| 6sealed | 276 | Ohnishi, Jyunpei (1595) | Lost 0-2 | -171552 |
| 7sealed | 270 | Poh, Liang Choong (1574) | Won 2-1 | +181570 |
| 8sealed | 174 | Hayasi, Syouta (1517) | Won 2-0 | +171587 |
| top | average opponent: 1515record: 5-3 | new rating: 1587 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 731 | Shikama, Taku (1500) | Lost 1-2 | -181482 |
| 2sealed | 1041 | Hirano, Kazuki (1487) | Won 2-0 | +181500 |
| 3sealed | 977 | H., Nomoto (1500) | Won 2-1 | +181518 |
| 4sealed | 896 | Saitou, Yuu (1617) | Won 2-0 | +201538 |
| 5sealed | 814 | K., Tetsuhiro (1539) | Won 2-0 | +181556 |
| 6sealed | 761 | Ou, Haitetsu (1555) | Lost 0-2 | -181538 |
| 7sealed | 796 | Odaki, Rei (1537) | Won 2-0 | +181556 |
| 8sealed | 962 | Furujou, Takashi (1483) | Won 2-1 | +171573 |
| 9sealed | 909 | Kinoshita, Tomohiro (1637) | Lost 0-2 | -171556 |
| top | average opponent: 1539record: 6-3 | new rating: 1556 | ||