Isomura, Ryota
Current rating: 1312
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1358 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 116 | Makino, Yuuichi (1532) | Lost 1-2 | -151343 |
| 2standard | 190 | Yuuki M., (1517) | Lost 1-2 | -151328 |
| 3standard | 313 | Inoue, Makoto (1458) | Lost 1-2 | -161312 |
| top | average opponent: 1502record: 0-3 | new rating: 1312 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 277 | Yamano, Tatsuto (1497) | Lost 0-0 | -171407 |
| 2sealed | 267 | Sumitomo, Hiroyuki (1523) | Lost 0-2 | -151392 |
| 3sealed | 239 | Iwama, Hirokazu (1443) | Lost 0-2 | -171375 |
| 4sealed | 270 | Colloran, Kenyon (1446) | Lost 1-2 | -171358 |
| top | average opponent: 1477record: 0-4 | new rating: 1358 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 222 | Matsumoto, Yoshifumi (1445) | Lost 0-2 | -191481 |
| 2block | 326 | Minoue, Hiroyuki (1411) | Lost 1-2 | -191462 |
| 3block | 330 | Isoda, Yusuke (1437) | Lost 0-2 | -191443 |
| 4block | 380 | Terao, Manato (1393) | Lost 0-2 | -191424 |
| 5block | 352 | Nishiura, Kazuhiro (1430) | Won 2-0 | +181442 |
| 6block | 298 | Yamano, Tatsuto (1425) | Lost 0-2 | -181424 |
| top | average opponent: 1424record: 1-5 | new rating: 1424 | ||