Hiraga, Mikio
Current rating: 1540
Record: 19-18-1
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 53 | Tominaga, Akira (1465) | Lost 0-2 | -191522 |
| 2extended | 96 | Morii, Takayuki (1464) | Won 2-1 | +171539 |
| 3extended | 93 | Imai, Kimio (1556) | Won 2-1 | +181557 |
| 4extended | 57 | Nagaoka, Kazunori (1538) | Lost 1-2 | -181539 |
| 5extended | 89 | Kagami, Gen (1612) | Won 2-0 | +191558 |
| 6extended | 60 | Shimoji, Ai (1593) | Lost 1-2 | -181540 |
| top | average opponent: 1538record: 3-3 | new rating: 1540 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 161 | Sasaki, Yusuke (Tokyo) (1744) | Won 2-0 | +231500 |
| 3sealed | 18 | Suga, Takeichi (1589) | Won 2-1 | +191519 |
| 4sealed | 23 | Kikuchi, Yuuji (1586) | Won 2-0 | +191538 |
| 5sealed | 12 | Takagi, Takeshi (1616) | Lost 1-2 | -161522 |
| 6sealed | 77 | Tominaga, Yoichi (1521) | Won 2-1 | +181540 |
| 7sealed | 34 | Kanno, Hiroki (1585) | Lost 1-2 | -171523 |
| 8sealed | 82 | Kishigami, Osamu (1536) | Won 2-0 | +181541 |
| top | average opponent: 1597record: 5-2 | new rating: 1541 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 217 | Hashimoto, Yoshiki (1500) | Lost 1-2 | -181494 |
| 2standard | 275 | Yotsumoto, Yuki (1482) | Won 2-1 | +181512 |
| 3standard | 189 | Kiyotani, Kazuki (1517) | Lost 0-2 | -181494 |
| 4standard | 321 | Mayumi, Ryuuta (1551) | Lost 0-2 | -171477 |
| top | average opponent: 1513record: 1-3 | new rating: 1477 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 8 | Okutomi, Hiromitsu (1589) | Won 2-1 | +211483 |
| 2sealed | 55 | Saito, Hirotsugu (1518) | Won 2-0 | +181501 |
| 3sealed | 73 | Fujino, Kimihiro (1547) | Lost 0-2 | -171484 |
| 4sealed | 88 | Murata, Yutaka (1521) | Won 2-1 | +191503 |
| 5sealed | 51 | Kashiwa, Toshihiro (1536) | Won 2-0 | +181521 |
| 6sealed | 63 | Ueda, Katsuya (1692) | Lost 0-2 | -151506 |
| 7sealed | 77 | Otsubo, Yuji (1745) | Won 2-0 | +231529 |
| 8sealed | 40 | Kai, Tsubasa (1609) | Lost 1-2 | -171512 |
| top | average opponent: 1595record: 5-3 | new rating: 1512 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 92 | Tanaka, Hidenori (1469) | Lost 0-2 | -191480 |
| 2sealed | 274 | Kakita, Masashi (1523) | Won 2-1 | +191499 |
| 3sealed | 215 | Sasaki, Yusuke(Miyagi) (1482) | Lost 1-2 | -181481 |
| 4sealed | 262 | Yamaguchi, Yoshinori (1468) | Lost 0-2 | -191462 |
| top | average opponent: 1485record: 1-3 | new rating: 1462 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 134 | Abe, Naoki (1447) | Won 2-0 | +171517 |
| 2block | 106 | Tamai, Katsuyoshi (1487) | Won 2-1 | +171534 |
| 3block | 32 | Mori, Takashi(Ehime) (1536) | Won 2-1 | +181552 |
| 4block | 48 | Okada, Daisuke (1606) | Lost 1-2 | -171535 |
| 5block | 84 | Sasahara, Yasufumi (1535) | Lost 1-2 | -181517 |
| 6block | 215 | Mizutani, Naoki (1483) | Lost 0-2 | -181499 |
| 7block | 192 | Suwa, Masashi (1501) | Draw 1-1 | 01499 |
| top | average opponent: 1513record: 3-3-1 | new rating: 1499 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 210 | Yokosuka, Tomohiro (1483) | Lost 0-2 | -181482 |
| 2sealed | 245 | Taguchi, Kenji (1482) | Won 2-0 | +181500 |
| top | average opponent: 1483record: 1-1 | new rating: 1500 | ||