Nakamura, Koudai
Current rating: 1436
Record: 13-17-1
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 454 | Yang, Chen Han (1522) | Lost 1-2 | -171413 |
| 2legacy | 360 | Okano, Hiroki (1467) | Lost 1-2 | -171396 |
| 3legacy | 593 | Iwaide, Yoshitaka (1516) | Lost 0-2 | -151381 |
| 4legacy | 650 | Kevin, Laurent (1447) | Won 2-0 | +191400 |
| 5legacy | 613 | Kutomi, Hirotaka (1413) | Won 2-0 | +181418 |
| 6legacy | 445 | Ito, Ryo (1316) | Won 2-0 | +161434 |
| 7legacy | 332 | Gouda, Kento (1496) | Lost 1-2 | -171417 |
| 8legacy | 410 | Tsai, Shih Tsun (1473) | Won 2-1 | +191436 |
| top | average opponent: 1456record: 4-4 | new rating: 1436 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1440 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 208 | Hayashi, Ryuichiro (1361) | Won 2-0 | +161456 |
| 2modern | 317 | Baba, Takashi (1566) | Lost 0-2 | -161440 |
| 3modern | 1043 | Okasaki, Gota (1483) | Won 2-1 | +191459 |
| 4modern | 797 | Kannta, Hayashi (1441) | Won 2-1 | +181477 |
| 5modern | 608 | Tai, Akio (1450) | Won 2-1 | +171494 |
| 6modern | 264 | Kimonji, Hiroki (1578) | Lost 0-2 | -161478 |
| 7modern | 426 | Nakano, Taiki (1518) | Lost 0-2 | -171461 |
| 8modern | 576 | Uchiyama, Takato (1510) | Lost 0-2 | -171444 |
| 9modern | 643 | Ishiguro, Youhei (1680) | Lost 0-2 | -141430 |
| top | average opponent: 1510record: 4-5 | new rating: 1430 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 203 | Zhu, David (1550) | Lost 1-2 | -171496 |
| 2legacy | 543 | Yokota, Naoto (1480) | Won 2-1 | +171513 |
| 3legacy | 856 | Ebihara, Hirotaka (1591) | Lost 1-2 | -161497 |
| 4legacy | 866 | Watanabe, Atsuhiro (1415) | Lost 0-2 | -201477 |
| 5legacy | 1104 | Nagano, Toshimitsu (1444) | Lost 1-2 | -181459 |
| 6legacy | 1023 | Seko, Kazuki (1410) | Lost 0-2 | -191440 |
| top | average opponent: 1482record: 1-5 | new rating: 1440 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 912 | Furuya, Satoshi (1360) | Draw 1-1 | -31497 |
| 2modern | 996 | Kuga, Souta (1500) | Won 2-1 | +191516 |
| 3modern | 924 | Fukuda, Wataru (1482) | Lost 0-2 | -191497 |
| 4modern | 1053 | Arakida, Tomohito (1388) | Lost 1-2 | -201477 |
| 5modern | 1125 | Takeuchi, Syuji (1480) | Won 2-1 | +181495 |
| 6modern | 1027 | Katou, Takayoshi (1488) | Won 2-0 | +181513 |
| 7modern | 932 | Ji, Gang (1524) | Won 2-0 | +181531 |
| 8modern | 858 | Matsuda, Yuuichirou (1529) | Lost 1-2 | -181513 |
| top | average opponent: 1469record: 4-3-1 | new rating: 1513 | ||