Nagumo, Hiroyuki
Current rating: 1490
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 259 | Yamanaka, Takuya (1544) | Lost 1-2 | -181487 |
| 2legacy | 550 | Shirai, Shota 5117 (1484) | Lost 1-2 | -181469 |
| 3legacy | 635 | Yasui, Masanori (1464) | Won 2-0 | +181487 |
| 4legacy | 473 | Choi, Young-Il (1353) | Won 2-0 | +161503 |
| 5legacy | 341 | Wolbers, Andrew (1778) | Lost 0-2 | -131490 |
| top | average opponent: 1525record: 2-3 | new rating: 1490 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 757 | Oono, Takamasa (1441) | Draw 1-1 | -11502 |
| 2legacy | 524 | Wakabayashi, Shigeaki (1500) | Won 2-0 | +181520 |
| 3legacy | 590 | Nishina, Tomoya (1540) | Lost 0-2 | -181502 |
| 4legacy | 799 | Watabe, Jun (1534) | Lost 1-2 | -171485 |
| 5legacy | 942 | Mori, Hiroshi (1517) | Lost 0-2 | -171468 |
| 6legacy | 1017 | Ueno, Kota (1511) | Won 2-0 | +181486 |
| 7legacy | 873 | Kamiyama, Daiki (1440) | Lost 1-2 | -181468 |
| 8legacy | 830 | Maeno.J, Kazushi (1494) | Won 2-1 | +181486 |
| 9legacy | 680 | Jackel, Stephen (1528) | Won 2-1 | +191505 |
| top | average opponent: 1501record: 4-4-1 | new rating: 1505 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 612 | Sugioka, Hironobu (1500) | Won 2-0 | +181518 |
| 2sealed | 631 | Sato, Hiroyuki (1452) | Won 2-1 | +171535 |
| 3sealed | 690 | Ueno, Shinichi (1685) | Lost 0-2 | -151520 |
| 4sealed | 737 | Kobori, Tetsuya (1564) | Won 2-0 | +181538 |
| 5sealed | 708 | Fujiya, Takahiro (1602) | Won 2-0 | +191557 |
| 6sealed | 720 | Arahori, Kazuaki (1604) | Lost 0-2 | -171540 |
| 7sealed | 758 | Yamada, Masato5998 (1512) | Lost 0-2 | -181522 |
| 8sealed | 783 | Minsu, Kim (1488) | Lost 1-2 | -191503 |
| top | average opponent: 1551record: 4-4 | new rating: 1503 | ||