Oyama, Hiroki
Current rating: 1393
Record: 2-8
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 26 | Kawaguchi, Takahiro (1445) | Lost 1-2 | -181427 |
| 2standard | 293 | Yamawaki, Keisuke (1497) | Won 2-0 | +191446 |
| 3standard | 149 | Kosuga, Shuhei (1433) | Lost 1-2 | -181428 |
| 4standard | 346 | Sakamoto, Naoki (1339) | Lost 0-2 | -201408 |
| 5standard | 381 | Kanno, Motoki (1445) | Won 2-1 | +191427 |
| 6standard | 325 | Koshimura, Takeshi (1484) | Lost 0-1 | -171410 |
| 7standard | 271 | Hosono, Yasutaka (1478) | Lost 1-2 | -171393 |
| average opponent: 1446record: 2-5 | new rating: 1393 | |||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 166 | Shimoeda, Satoshi (1500) | Lost 1-2 | -181482 |
| 2sealed | 251 | Nagai, Mamoru (1481) | Lost 0-2 | -181464 |
| 3sealed | 276 | Furukawa, Hiroyuki (1396) | Lost 0-2 | -191445 |
| average opponent: 1459record: 0-3 | new rating: 1445 | |||