Hosokawa, Soichiro
Current rating: 1608
Record: 23-18
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 241 | Akisato, Ryou (1510) | Won 2-0 | +171561 |
| 3standard | 264 | Gou, Makoto (1510) | Won 2-1 | +171578 |
| 4standard | 225 | Katabira, Shoji (1522) | Won 2-1 | +171595 |
| 5standard | 61 | Tsuzaki, Akira (1544) | Lost 1-2 | -191576 |
| 6standard | 213 | Ishihama, Yuki (1556) | Won 2-1 | +181594 |
| 7standard | 85 | Fukuda, You (1524) | Won 2-1 | +171611 |
| 8standard | 75 | Saruta, Katsumi (1612) | Lost 0-2 | -181593 |
| 9standard | 92 | Shiroma, Hiroshi (1528) | Won 2-0 | +171610 |
| 10standard | 144 | Kiwanont, Sukhum (1724) | Lost 0-2 | -161594 |
| 11standard | 234 | Tanehashi, Shigeharu (1541) | Lost 0-2 | -191575 |
| 12standard | 302 | Sato, Masakazu (1555) | Won 2-0 | +171592 |
| 13standard | 237 | Nabetani, Satoki (1573) | Lost 1-2 | -181574 |
| 14standard | 207 | Nakazawa, Yusuke (1406) | Won 2-0 | +151589 |
| 15standard | 170 | Sato, Hikaru0478 (1630) | Won 2-1 | +191608 |
| top | average opponent: 1552record: 9-5 | new rating: 1608 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 415 | Shiraishi, Shinji (1427) | Won 2-1 | +171504 |
| 2sealed | 71 | Fukuoka, Naoto (1418) | Lost 1-2 | -191485 |
| 3sealed | 751 | Boss, Matt (1499) | Won 2-0 | +181503 |
| 4sealed | 714 | Sasaki, Yuusuke3592 (1482) | Lost 0-2 | -181485 |
| 5sealed | 963 | Matsui, Tatsuyoshi (1508) | Won 2-1 | +181503 |
| 6sealed | 596 | Kubo, Yuta1677 (1467) | Won 2-0 | +171520 |
| 7sealed | 418 | Ishii, Shinji (1575) | Won 2-0 | +191539 |
| 8sealed | 366 | Satou, Tsubasa (1690) | Lost 0-2 | -151524 |
| 9sealed | 394 | Suzuki, Shouta (1537) | Won 2-1 | +181542 |
| 10draft | 206 | Kimura, Yoshihiro (1532) | Won 2-0 | +181560 |
| 11draft | 317 | Shiomi, Genki (1666) | Won 2-0 | +201580 |
| 12draft | 156 | Fujimori, Masayoshi (1657) | Lost 1-2 | -161564 |
| 13draft | 322 | Sasaki, Hideto (1557) | Lost 0-2 | -191545 |
| 14draft | 291 | Ohori, Akihito (1455) | Won 2-0 | +171562 |
| 15draft | 36 | Kajiyama, Yu (1570) | Lost 1-2 | -181544 |
| top | average opponent: 1536record: 9-6 | new rating: 1544 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 148 | Saito, Shinichi (1451) | Lost 1-2 | -181435 |
| 2standard | 763 | Hashimoto, Ryunosuke (1481) | Lost 1-2 | -171418 |
| 3standard | 1127 | Ajitomi, Takeshi (1461) | Won 2-1 | +191437 |
| 4standard | 1040 | Iwasaki, Mitsumasa (1482) | Won 2-1 | +191456 |
| 5standard | 628 | Sonoda, Naohiro (1598) | Won 2-1 | +201476 |
| 6standard | 664 | Saito, Taishi (1694) | Lost 1-2 | -141462 |
| 7standard | 718 | Inuzuka, Satoshi (1658) | Won 2-1 | +221484 |
| 8standard | 490 | Ichihara, Yuya (1637) | Lost 0-2 | -151469 |
| 9standard | 453 | Kawai, Hiroki1988 (1516) | Won 2-0 | +181487 |
| top | average opponent: 1553record: 5-4 | new rating: 1487 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 31 | Saito, Taishi (1695) | Lost 1-2 | -141486 |
| 4sealed | 303 | Kawagishi, Yuuya (1516) | Lost 1-2 | -181468 |
| 5sealed | 341 | Miyahara, Syoutarou (1655) | Lost 1-2 | -151453 |
| top | average opponent: 1622record: 0-3 | new rating: 1453 | ||