Nagata, Shigeki
Current rating: 1575
Record: 20-17
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 27 | Yamaguchi, Tetsuya (1471) | Won 2-0 | +171577 |
| 2sealed | 83 | Uesugi, Fumiya (1491) | Won 2-1 | +161593 |
| 3sealed | 41 | Shiraishi, Hiroaki (1594) | Lost 0-2 | -181575 |
| 4sealed | 147 | Shinoda, Makoto (1523) | Won 2-0 | +171592 |
| 5sealed | 98 | Saito, Takaya (1707) | Lost 0-2 | -161576 |
| 6sealed | 81 | Nakamura, Junpei (1551) | Won 2-0 | +181594 |
| 7sealed | 68 | Miyaoka, Hiroyuki (1545) | Lost 0-2 | -191575 |
| top | average opponent: 1555record: 4-3 | new rating: 1575 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 163 | Yamada, Yasuo (1492) | Lost 1-2 | -191515 |
| 2sealed | 256 | Saito, Taishi (1472) | Won 2-0 | +181533 |
| 3sealed | 232 | Ohno, Isao (1577) | Won 2-1 | +181551 |
| 4sealed | 197 | Shinozaki, Yuu (1620) | Won 2-0 | +201571 |
| 5sealed | 126 | Akiyama, Takashi (1647) | Lost 1-2 | -171554 |
| 6sealed | 193 | Itou, Takanori (1522) | Won 2-1 | +171571 |
| 7sealed | 123 | Mitamura, Kazuya (2032) | Won 2-1 | +261597 |
| 8sealed | 65 | Imai, Tomoyuki (1554) | Lost 0-2 | -191578 |
| 9sealed | 87 | Fleury, Aaron (1566) | Lost 0-2 | -181560 |
| top | average opponent: 1609record: 5-4 | new rating: 1560 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 125 | Morita, Masayuki (1382) | Lost 1-2 | -201466 |
| 3standard | 237 | Toshiki, Fruya (1500) | Won 2-0 | +181484 |
| 4standard | 246 | Kobayashi, Shigeyuki (1519) | Won 2-0 | +191503 |
| 5standard | 123 | Azuma, Motokiyo (1773) | Won 2-0 | +231526 |
| 6standard | 71 | Tanaka, Hisaya (1772) | Lost 1-2 | -141512 |
| 7standard | 166 | Tamura, Makoto (1539) | Won 2-0 | +191531 |
| 8standard | 64 | Takamatsu, Hiroomi (1483) | Lost 1-2 | -191512 |
| 9standard | 102 | Higaki, Takao (1748) | Won 2-0 | +221534 |
| top | average opponent: 1589record: 5-3 | new rating: 1534 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 11 | Kounoike, Masaki (1488) | Lost 0-2 | -191487 |
| 2sealed | 214 | Nonaka, Kengo (1482) | Won 2-0 | +181505 |
| 3sealed | 182 | Cosic, Refik (1415) | Lost 0-2 | -201485 |
| 4sealed | 178 | Ogihara, Toshiki (1448) | Won 2-1 | +181503 |
| 5sealed | 139 | Sutou, Takuo (1552) | Lost 0-2 | -171486 |
| top | average opponent: 1477record: 2-3 | new rating: 1486 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 127 | Kishi, Tatsunori (1652) | Won 2-0 | +211521 |
| 2sealed | 69 | Ogawa, Hiroyuki(Nagano) (1519) | Won 2-1 | +181539 |
| 3sealed | 38 | Yamamoto, Kentaro (1557) | Lost 0-2 | -181521 |
| 4sealed | 164 | Iwai, Tsuyoshi (1666) | Lost 0-2 | -151506 |
| 5sealed | 174 | Kageyama, Shuntarou (1501) | Lost 0-2 | -181488 |
| 6sealed | 172 | Tsukimoto, Kazuhiro (1391) | Won 2-0 | +161504 |
| 7sealed | 120 | Imai, Takashi (1519) | Won 2-0 | +181522 |
| 8sealed | 85 | Sumita, Masanobu (1601) | Lost 0-2 | -161506 |
| top | average opponent: 1551record: 4-4 | new rating: 1506 | ||