Matsubara, Yoshiro
Current rating: 1490
Record: 5-6-1
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 185 | Tanaka, Kei (1500) | Lost 0-2 | -181445 |
| 2standard | 359 | Fujita, Kouki (1481) | Won 2-0 | +191464 |
| 3standard | 229 | Kojima, Fumiya (1450) | Lost 0-2 | -181446 |
| 4standard | 374 | Kawabata, Tomoyuki (1468) | Won 2-0 | +181464 |
| 5standard | 340 | Harada, Satoshi (1673) | Won 2-1 | +221486 |
| 6standard | 221 | Tashiro, Yoshiaki (1690) | Lost 1-2 | -141472 |
| 7standard | 235 | Doi, Yuki (1502) | Won 2-0 | +181490 |
| average opponent: 1538record: 4-3 | new rating: 1490 | |||
| Grand Prix Okayama 2004 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 32 | Kanaike, Hiroyuki (1500) | Draw 1-1 | 01500 |
| 2extended | 102 | Arakane, Daisuke (1462) | Won 2-0 | +171517 |
| 3extended | 76 | Sada, Akihiro (1500) | Lost 1-2 | -181499 |
| 4extended | 131 | Kuriyama, Masaaki (1497) | Lost 1-2 | -181481 |
| 5extended | 153 | Umemiya, Tatsuya (1467) | Lost 0-2 | -181463 |
| average opponent: 1485record: 1-3-1 | new rating: 1463 | |||