Katayama, Chihiro
Current rating: 1416
Record: 2-7
| Grand Prix Yokohama 2010 (extended) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 229 | Hoshino, Yohei (1500) | Lost 0-2 | -171451 |
| 2extended | 392 | Sugimoto, Yuuki (1468) | Lost 1-2 | -181433 |
| 3extended | 425 | Fukui, Shunsuke (1463) | Lost 1-2 | -171416 |
| average opponent: 1477record: 0-3 | new rating: 1416 | |||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 247 | Fukae, Teruaki (1517) | Won 2-1 | +181518 |
| 2block | 162 | Abe, Genta (1541) | Lost 1-2 | -171501 |
| 3block | 210 | oosaki, kenji (1498) | Lost 1-2 | -181483 |
| 4block | 347 | Yoshida, Kouki (1507) | Won 2-1 | +181501 |
| 5block | 286 | Takanashi, Kouji (1682) | Lost 0-2 | -151486 |
| 6block | 273 | Tonouchi, Keita (1479) | Lost 0-2 | -181468 |
| average opponent: 1537record: 2-4 | new rating: 1468 | |||