Hosono, Yasutaka
Current rating: 1495
Record: 16-16
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 212 | Ishiguro, Satoshi (1516) | Lost 0-2 | -181498 |
| 2standard | 258 | Sato, Shinichi (1482) | Lost 0-2 | -181480 |
| 3standard | 358 | Nakamura, Takehiro (1401) | Lost 0-2 | -191461 |
| 4standard | 411 | Kurita, Naoki (1447) | Lost 0-2 | -191442 |
| 5standard | 393 | Honda, Takeru (1446) | Won 2-0 | +181460 |
| 6standard | 344 | Kanno, Motoki (1427) | Won 2-0 | +181478 |
| 7standard | 271 | Oyama, Hiroki (1410) | Won 2-1 | +171495 |
| top | average opponent: 1447record: 3-4 | new rating: 1495 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 177 | Date, Norikuni (1536) | Lost 0-2 | -181520 |
| 2sealed | 286 | Mochiki, Kazuto (1524) | Won 2-0 | +181538 |
| 3sealed | 141 | Tsukamoto, Tatsushi (1409) | Lost 0-2 | -201518 |
| 4sealed | 297 | Oda, Naoki (1465) | Won 2-1 | +171535 |
| 5sealed | 204 | Weiskotten, Brendan (1500) | Lost 1-2 | -191516 |
| top | average opponent: 1487record: 2-3 | new rating: 1516 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 78 | Iwakami, Yuji (1500) | Won 2-1 | +191499 |
| 2block | 220 | Goto, Yusei (1542) | Won 2-0 | +191518 |
| 3block | 36 | Mizutani, Naoto (1515) | Lost 1-2 | -181500 |
| 4block | 107 | Ogata, Shouichirou (1528) | Won 2-1 | +181518 |
| 5block | 170 | Kyo, Ifu (1594) | Won 2-1 | +191537 |
| 6block | 83 | Ito, Shinichi (1579) | Lost 1-2 | -171520 |
| 7block | 161 | Suzuki, Kazushige (1507) | Won 2-0 | +181538 |
| 8block | 66 | Yamamoto, Makoto (1533) | Lost 0-2 | -181520 |
| 9block | 112 | Kojima, Yuuta (1543) | Won 2-1 | +181538 |
| top | average opponent: 1538record: 6-3 | new rating: 1538 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 100 | Hamada, Takahiro (1507) | Lost 1-2 | -171462 |
| 2standard | 275 | Watanabe, Tomosumi (1395) | Won 2-0 | +171479 |
| 3standard | 156 | Honnami, Tomoyuki (1667) | Lost 0-2 | -151464 |
| 4standard | 302 | Kawaguchi, Hikaru (1431) | Won 2-1 | +171481 |
| 5standard | 239 | Kadono, Takayuki (1456) | Won 2-0 | +181499 |
| 6standard | 124 | Cosic, Refik (1476) | Lost 1-2 | -191480 |
| top | average opponent: 1489record: 3-3 | new rating: 1480 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Onoda, Hikaru (1460) | Lost 0-2 | -191481 |
| 2sealed | 140 | Yamaguchi, Yoshinori (1479) | Lost 1-2 | -181463 |
| 3sealed | 132 | Aoyagi, Tooru (1466) | Lost 0-2 | -181445 |
| 4sealed | 157 | Hasegawa, Yumehito (1445) | Won 2-0 | +181463 |
| 5sealed | 132 | Mochizuki, Takahito (1354) | Won 2-0 | +161479 |
| top | average opponent: 1441record: 2-3 | new rating: 1479 | ||