Sada, Akihiro
Current rating: 1521
Record: 7-6-2
| Grand Prix Okayama 2004 (extended) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 61 | Tsuzaki, Tatsuya (1500) | Won 2-0 | +181521 |
| 2extended | 71 | Yasukawa, Kazuhide (1393) | Lost 1-2 | -211500 |
| 3extended | 76 | Matsubara, Yoshiro (1517) | Won 2-1 | +191519 |
| 4extended | 118 | Okada, Hiroaki (1614) | Won 2-1 | +191538 |
| 5extended | 79 | Kise, Masato (1648) | Lost 1-2 | -161522 |
| 6extended | 67 | Komura, Nobuhiro (1502) | Lost 1-2 | -181504 |
| 7extended | 104 | Imamura, Taichirou (1465) | Draw 1-1 | -11503 |
| 8extended | 88 | Hara, Yasuharu (1512) | Won 2-1 | +181521 |
| average opponent: 1519record: 4-3-1 | new rating: 1521 | |||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 37 | Yabe, Yosuke (1498) | Won 2-0 | +181518 |
| 3extended | 24 | Suzuki, Akihisa (1469) | Won 2-0 | +171535 |
| 4extended | 22 | Nakamura, Satoshi (1674) | Lost 0-1 | -151520 |
| 5extended | 37 | Nishikubo, Shogo (1537) | Draw 1-1 | 01520 |
| 6extended | 54 | Kaneko, Masanori (1559) | Lost 0-2 | -171503 |
| 7extended | 85 | Lee, Sung-Bum (1457) | Won 2-0 | +171520 |
| 8extended | 60 | Kawamura, Kazushi (1569) | Lost 1-2 | -171503 |
| average opponent: 1538record: 3-3-1 | new rating: 1503 | |||