Naho (福井奈穂) Fukui
Born : 1980 Cat. W45 Ultrarunner since 2012 JPN
24
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
4
Countries visited ?FRAFranceITAItalyJPNJapanSUISwitzerland
47,3%
Rank quotient ?This runner's calculation uses 24 eligible race(s): Σ(rank − 1) = 7 600; Σ finishers = 16 081. 7 600 / 16 081 × 100 = 47.26%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed29
Km — ultra races2 860 km
> 100 km8
> 160 km5
> 200 km4
Longest race360,0 km
SwissPeaks 360 — 2/9/2018

Km per year (ultra races)

250
1 race
2022
2023
2024
158
2 races
2025
100
1 race
2026

Race types (share of distance)

Road14,5%
Trail77,2%
Stage8,3%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0

HISTORY

24 race(s)
DateRacePerf.Rk
2026
16.05 100km JPN11th Trainic World 100 km in Sai-No-Kuni 23:40:10 h46
2025
19.10 100km JPN31th River Shimanto 100km 11:28:14 h279
21.06 58km JPN1st Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 9:46:29 h126
2022
13.07 250km SUI1. Eiger Ultra Trail E250 3d 12:27:22 h60
2020
06.09 50km JPN13th OSJ Adatara Trail 50K 9:17:43 h144
2019
06.07 69km FRA11° Restonica Trail 17:45:41 h178
30.06 100km JPN34. Lake Saroma 100 km Ultramarathon 9:52:56 h359
2018
02.09 360km SUISwissPeaks 360 6d 03:56:00 h158
12.05 108.7km JPN2nd Aso Round Trail 24:27:04 h186
2017
11.06 71km JPN6th Hida Takayama 71 km Ultramarathon 6:57:24 h33
27.05 50km JPN9th OSJ Okukuji Trail 50k 11:25:13 h118
2016
11.09 330km ITA7° Tor des Géants - 330 km Endurance Trail della Valle d'Aosta 6d 00:48:15 h329
02.07 80km JPN6th Utsukushigahara 80 km Trail Run 13:21:46 h174
12.06 72km JPN5th Hida Takayama 72 km Ultramarathon 7:22:54 h41
2015
29.11 50km JPNKumano Old Trails 8:56:46 h95
22.09 110km JPN7th Shinetsu Five Mountains Trail 110km 19:44:29 h333
07.06 72km JPN4th Hida Takayama 72 km Ultramarathon 7:19:46 h46
2014
20.09 120km JPN1st SkyView Ultra-Trail - Yamada Noboru Memorial Cup 30:32:29 h329
23.08 237km/6stages JPN1st Hakusan Geotrail 250km 2d 03:28:11 h7
15.06 81.4km JPN1. Spatrail - Shima to Kusatsu 13:48:25 h368
2013
26.04 100mi JPN2nd Ultra-Trail Mount Fuji 39:50:01 h373
10.03 72km JPN1st Izu Trail Journey 12:30:34 h767
2012
07.10 71.5km JPN20th Hasetsune Cup - Japan Mountain Endurance Race 19:35:27 h1542
31.08 86km ITA7ème Courmayeur-Champex-Chamonix 24:08:03 h1533