Kohaku Nakadai
JapanActive- Born
- Jul 31, 2005 (21 years old)
- Events
- Half Marathon Race Walk · 20 km race walk
Kohaku Nakadai is a Japan race walker, born on July 31, 2005. He competes primarily in the 20kmW, 10Kilometr and 5000m-short-track.
His personal bests include 1:23:34 in the 20kmW, 44:29 in the 10Kilometr, 21:15.24 in the 5000m-short-track, 40:09.03 in the 10,000Metr and 1:27:42 in the HalfMarath. He is currently active on the international athletics circuit, representing Japan.
Personal best · Half Marathon Race Walk1:27:42
2026 season best1:27:42Mar 15, 2026 · Nomi
Personal best · 20 km race walk1:23:34
Last competition63rd All Japan Race Walking TakahataOct 25, 2026 · DNF
As of Nov 7, 2026: Half Marathon Race Walk 1:27:42, 20 km race walk 1:23:34, 2026 season best 1:27:42 (Mar 15, 2026, Nomi (JPN)) · Last competition: 63rd All Japan Race Walking Takahata, Oct 25, 2026, DNF · 21 years old
Personal bests
WA points calculator →DisciplineResultAll-time2026
10KilometrTokyo 202444:29––
5000m-short-trackSapporo 202321:15.2479 pts––
10,000MetrUtsunomiya 202640:09.03–#35
HalfMarathNomi 20261:27:42–#124
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 5000Metres | 20:38.61 | – | Sep 5, 2026 | 95th Japan Inter-University Athletics Championships |
| 2026 | 10,000Metr | 40:09.03 | – | May 22, 2026 | The 105th Kanto Inter-University Track＆Field Championships |
| 2026 | 10Kilometr | 40:09.03 | – | May 21, 2026 | The 105th Kanto Inter-University Track＆Field Championships |
| 2026 | 20kmW | 1:23:34 | – | Jan 1, 2026 | New Year Race Walk in Tokyo |
| 2026 | HalfMarath | 1:27:42 | – | Mar 15, 2026 | Asian Race Walking Championships |
| 2025 | 10,000Metr | 41:21.93 | – | Apr 26, 2025 | All Japan University Track & Field Challenge, Tokai University Stadium, Hiratsuka |
| 2025 | 20kmW | 1:27:38 | – | Jan 1, 2025 | New Year Race Walk in Tokyo 2025, Tokyo |
| 2025 | HalfMarath | 1:30:52 | – | Oct 26, 2025 | 62nd All Japan Race Walking Takahata 2025 |