Koki (河井光輝) Kawai
ID 974890
Ultrarunner since 2017 JPN
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
29
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
1
Countries visited ?JPNJapan
57,9%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 6 290; Σ finishers = 10 867. 6 290 / 10 867 × 100 = 57.88%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed9
Km — ultra races951 km
> 100 km1
Longest race151,0 km
2nd Noto Country Journey Run — 4/10/2025

Km per year (ultra races)

100
1 race
2022
200
2 races
2023
100
1 race
2024
251
2 races
2025
2026

Race types (share of distance)

Road89,5%
Trail10,5%

Records

100 km11h41'37

HISTORY

9 race(s)
DateRacePerf.Rk
2025
04.10 151km JPN2nd Noto Country Journey Run 26:03:03 h94
08.06 100km JPN13th Hida Takayama 100 km Ultramarathon 13:52:27 h1567
2024
09.06 100km JPN12th Hida Takayama 100 km Ultramarathon 11:41:37 h419
2023
11.06 100km JPN11th Hida Takayama 100 km Ultramarathon 12:27:10 h568
04.03 100km JPN1st Minonokuni Yamajiro Trail 100 32:16:00 h57
2022
12.06 100km JPN10th Hida Takayama 100 km Ultramarathon 12:51:39 h635
2019
09.06 100km JPN8th Hida Takayama 100 km Ultramarathon 13:22:19 h1387
2018
10.06 100km JPN7th Hida Takayama 100 km Ultramarathon 12:52:47 h864
2017
11.06 100km JPN6th Hida Takayama 100 km Ultramarathon 12:29:45 h708