Akito (長尾暁人) Nagao
Born : 1988 Cat. M35 Ultrarunner since 2013 JPN
36
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
53
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
3
Countries visited ?AUSAustraliaFRAFranceJPNJapan
5,2%
Rank quotient ?This runner's calculation uses 36 eligible race(s): Σ(rank − 1) = 1 331; Σ finishers = 25 825. 1 331 / 25 825 × 100 = 5.15%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed36
Km — ultra races3 665 km
> 100 km16
> 160 km10
Longest race170,0 km

Km per year (ultra races)

683
5 races
2022
167
1 race
2023
324
2 races
2024
332
3 races
2025
100
1 race
2026

Race types (share of distance)

Road13,6%
Trail86,4%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 35
🏅 Top 3 M5
Longest winning streak0
Current streak0

HISTORY

36 race(s)
DateRacePerf.Rk
2026
16.05 100km AUS18th Ultra-Trail Australia by UTMB - UTA100 11:37:16 h27
2025
14.09 112.7km JPN17th Shinetsu Five Mountains Trail 110km 12:21:35 h2 🥈
21.06 58km JPN1st Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 6:59:24 h12
16.05 100mi AUS1st Ultra-Trail Australia by UTMB - UTA Miler 20:56:43 h5
2024
16.11 100Miles JPN10th Sengenyama 100 25:34:00 h3 🥉
14.09 163.1km JPN16th Shinetsu Five Mountains Trail 100 mile 20:50:00 h2 🥈
2023
21.04 167km JPN8th Ultra-Trail Mt. Fuji 22:34:56 h14
2022
11.12 70km JPN9th Izu Trail Journey 7:09:31 h21
07.10 169km JPN2nd Lake Biwa 100 29:24:06 h3 🥉
26.08 170km FRA19ème Ultra Trail Tour du Mont Blanc 31:31:59 h223
16.07 106.5km JPN14th OSJ Ontake 100km Ultra Trail 9:59:18 h6
22.04 167km JPN7th Ultra-Trail Mt. Fuji 22:46:24 h30
2021
12.12 69.1km JPN8th Izu Trail Journey 7:36:39 h35
14.11 56km JPN6th Nikko National Park Mountain Running 4:56:54 h6
09.10 168.5km JPN7th OSJ Koumi 100 22:34:01 h3 🥉
2020
13.12 66km JPN7th Izu Trail Journey 7:18:59 h30
06.09 50km JPN13th OSJ Adatara Trail 50K 7:06:32 h21
2019
08.12 71.7km JPN6th Izu Trail Journey 7:13:44 h32
14.09 100mi JPN11th Shinetsu Five Mountains Trail 100 mile 24:39:39 h29
23.06 72.6km JPN6. Spatrail - Shima to Kusatsu 72K 7:46:07 h6
2018
04.11 67km JPN2nd Koshu Alps Haute Route Challenge 11:29:23 h23
06.10 100mi JPN5th OSJ Koumi 100 28:32:00 h5
09.09 51.4km JPN8th Hakuba Int. Trail Run 5:27:56 h13
26.08 48km JPN5th Tsukuba Renjyo 48 km Road & Trail Run 6:20:30 h40
2017
10.12 71.7km JPN4th Izu Trail Journey 8:29:21 h39
19.11 64km JPN1st Koshu Alps Haute Route Challenge 10:07:34 h11
29.07 102km JPN1st OSJ Itamuro 100 16:40:26 h10
2016
11.12 71.7km JPN3rd Izu Trail Journey 8:40:26 h28
09.10 71.5km JPN24th Hasetsune Cup - Japan Mountain Endurance Race 10:11:25 h59
26.06 72.7km JPN3. Spatrail - Shima to Kusatsu 8:57:01 h34
28.05 50km JPN8th OSJ Okukuji Trail 50k 10:16:36 h66
24.04 118km JPN26th Fuji 5 Lakes 118 km Challenge 13:06:51 h183
2015
30.08 70km JPN2nd Tsukuba Renjyo 70 km Road & Trail Run 7:13:49 h5
19.04 118km JPN25th Fuji 5 Lakes 118 km Challenge 12:43:00 h102
2014
20.04 108km JPN24th Fuji 5 Lakes 108 km Challenge 12:31:30 h220
2013
01.06 100km JPN1st Tokyo Shibamata 100 km 8:54:58 h19