Okuyama, Tatsunori
Current rating: 1461
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 88 | Gonoi, Yoshitugu (1500) | Lost 1-2 | -181497 |
| 3block | 93 | Oya, Shingo (1501) | Won 2-0 | +181515 |
| 4block | 143 | Fujimoto, Takehiro (1510) | Lost 0-2 | -181497 |
| 5block | 168 | Sawata, Michiaki (1504) | Lost 1-2 | -181479 |
| 6block | 161 | Obara, Takahiro (1500) | Lost 1-2 | -181461 |
| top | average opponent: 1503record: 1-4 | new rating: 1461 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 8 | Shibuya, Kouichi (1419) | Lost 1-2 | -191479 |
| 2standard | 343 | Maki, Ryosuke (1484) | Won 2-0 | +181497 |
| 3standard | 267 | Fujishima, Kota (1497) | Won 2-1 | +181515 |
| 4standard | 187 | Yamamoto, Takao (1504) | Lost 1-2 | -181497 |
| 5standard | 265 | Suzuki, Ryuuichi (1449) | Won 2-0 | +171514 |
| 6standard | 194 | Chiba, Shun (1579) | Lost 0-2 | -171497 |
| 7standard | 207 | Otsuka, Seiji (1494) | Won 2-1 | +181515 |
| top | average opponent: 1489record: 4-3 | new rating: 1515 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 91 | Shigemasa, Gaku (1500) | Won 2-0 | +181518 |
| 2block | 116 | Obayashi, Naoki (1481) | Won 2-1 | +171535 |
| 3block | 89 | Yamagishi, Taro (1501) | Lost 0-2 | -181517 |
| 4block | 196 | Sagawa, Yuuki (1503) | Won 2-0 | +171534 |
| 5block | 88 | Ozawa, Takeshi (1467) | Lost 1-2 | -191515 |
| 6block | 210 | Tezuka, Yuuki (1372) | Lost 0-2 | -201495 |
| 7block | 221 | Naito, Takayoshi (1557) | Lost 1-2 | -171478 |
| 8block | 212 | Sakurada, Kouichi (1606) | Won 2-0 | +201498 |
| top | average opponent: 1498record: 4-4 | new rating: 1498 | ||