Hirayama, Susumu
Current rating: 1443
Record: 6-9-1
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 7 | Tauchi, Tanouchi (1500) | Lost 0-2 | -181500 |
| 2block | 184 | Goto, Takashi (1462) | Lost 1-2 | -191481 |
| 3block | 188 | Watanabe, Natsuko (1462) | Won 2-0 | +181499 |
| 4block | 178 | Moriyama, Masahiro (1483) | Won 2-1 | +181517 |
| 5block | 125 | Ono, Masayuki (1427) | Lost 0-2 | -201497 |
| 6block | 162 | Kobayashi, Naoki (1482) | Lost 0-2 | -181479 |
| 7block | 147 | Matushita, Masakazu (1520) | Lost 0-2 | -171462 |
| 8block | 127 | Fujii, Yuuki (1446) | Lost 0-2 | -191443 |
| average opponent: 1473record: 2-6 | new rating: 1443 | |||
| Grand Prix Sendai 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 82 | Okawa, Yusuke (1483) | Lost 1-2 | -181482 |
| 2extended | 137 | Watahiki, Hiroto (1482) | Draw 1-1 | 01482 |
| 3extended | 165 | Nakazawa, Kazuhiro (1525) | Won 2-0 | +181500 |
| 4extended | 138 | Saito, Jun (1501) | Won 2-0 | +181518 |
| 5extended | 105 | Shirosaki, Masao (1533) | Won 2-1 | +191537 |
| 6extended | 65 | Mukuno, Yuuji (1527) | Won 2-1 | +181555 |
| 7extended | 39 | Nakajima, Chikara (1569) | Lost 0-2 | -181537 |
| 8extended | 68 | Toochika, Takayuki (1516) | Lost 0-2 | -191518 |
| average opponent: 1517record: 4-3-1 | new rating: 1518 | |||