Nagahashi, Sadaaki
Current rating: 1651
Record: 23-14-1
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1677 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 267 | Koike, Tomoyuki (1489) | Won 2-0 | +151692 |
| 3standard | 140 | Murahata, Hiroyuki (1537) | Won 2-1 | +151707 |
| 4standard | 89 | Wong, Nicholas Jonathan (1917) | Draw 1-1 | +41711 |
| 5standard | 197 | Miyazono, Takeshi (1759) | Lost 0-2 | -171694 |
| 6standard | 454 | Kagami, Takuya (1626) | Lost 0-2 | -191675 |
| 7standard | 750 | Shibata, Shusaku (1488) | Won 2-1 | +141689 |
| 8standard | 500 | Hasegawa, Kazuhiko (1699) | Lost 0-2 | -181671 |
| 9standard | 680 | Yang, Jeff (1519) | Lost 1-2 | -201651 |
| top | average opponent: 1629record: 3-4-1 | new rating: 1651 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2028 | Matsushita, Takashi (1473) | Won 2-1 | +161597 |
| 2sealed | 2238 | Owada, Tomoyuki (1519) | Lost 0-2 | -201577 |
| 3sealed | 2347 | Iwaide, Shinnosuke (1494) | Won 2-1 | +171594 |
| 4sealed | 2198 | Matsubara, Ichiro (1704) | Lost 1-2 | -161578 |
| 5sealed | 2247 | Horikoshi, Takayuki (1498) | Won 2-0 | +161594 |
| 6sealed | 2222 | Tanaka, Yoshihiro (1520) | Won 2-1 | +171611 |
| 7sealed | 2096 | Hiroi, Yuta (1436) | Won 2-1 | +151626 |
| 8sealed | 2056 | Okada, Keita (1521) | Won 2-0 | +161642 |
| 9sealed | 2083 | Tachibana, Kentarou (1656) | Won 2-0 | +181660 |
| 10draft | 108 | Yokoyama, Itaru (1665) | Lost 0-2 | -181642 |
| 11draft | 174 | Baba, Yasunori (1795) | Won 2-1 | +211663 |
| 12draft | 116 | Fukasawa, Shinya (1587) | Won 2-0 | +171680 |
| 13draft | 9 | Hibino, Yasutaka (1612) | Lost 0-2 | -201660 |
| 14draft | 165 | Nitta, Ryou (1610) | Won 2-1 | +171677 |
| 15draft | 78 | Katsubayashi, Nobuhisa (1713) | ID | 01677 |
| top | average opponent: 1587record: 10-4-1 | new rating: 1677 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 351 | Kokubo, Kazuhiro (1526) | Won 2-0 | +171577 |
| 2sealed | 4 | Yoshida, Kai (1518) | Won 2-0 | +171594 |
| 3sealed | 47 | Ishimaru, Ken (1709) | Won 2-1 | +201614 |
| 4sealed | 47 | Hoshino, Yohei (1758) | Lost 0-2 | -151599 |
| 5sealed | 124 | Arita, Kazuhiro (1533) | Won 2-0 | +171616 |
| 6sealed | 81 | Ebitani, Keisuke (1702) | Lost 1-2 | -171599 |
| 7sealed | 188 | Sakai, Yoshiki (1565) | Lost 1-2 | -181581 |
| top | average opponent: 1616record: 4-3 | new rating: 1581 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 135 | Notake, Shozaburo (1538) | Won 2-0 | +191519 |
| 2sealed | 36 | Kurashita, Shinji (1518) | Lost 1-2 | -181501 |
| 3sealed | 251 | Matumoto, Yosihiro (1501) | Won 2-0 | +181519 |
| 4sealed | 203 | Takenaga, Tomohiro (1583) | Won 2-0 | +191538 |
| 5sealed | 91 | Matsumoto, Akihiro (1540) | Won 2-1 | +181556 |
| 6sealed | 64 | Hirose, Yuuki (1688) | Won 2-1 | +201576 |
| 7sealed | 62 | Miyamoto, Akihiro (1536) | Won 2-0 | +181594 |
| 8sealed | 20 | Yamada, Atsushi (1637) | Lost 0-2 | -181576 |
| 9sealed | 27 | Ebihara, Hirotaka (1660) | Lost 1-2 | -161560 |
| top | average opponent: 1578record: 6-3 | new rating: 1560 | ||