Hideaki (山内英昭) Yamauchi
Born : 1985 Cat. M40 Ultrarunner since 2010 JPN
27
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
6
Countries visited ?CROCroatiaESPSpainINDIndiaJORJordanJPNJapanUSAUnited States
0,2%
Rank quotient ?This runner's calculation uses 29 eligible race(s): Σ(rank − 1) = 53; Σ finishers = 23 991. 53 / 23 991 × 100 = 0.22%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed29
Km — ultra races3 016 km
> 100 km2
> 160 km2
> 200 km2
> 24h2
Longest race235,3 km

Km per year (ultra races)

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

Race types (share of distance)

Road96,7%
Trail3,3%

Wins & podiums (ultra)

🏆 Win17
🏆 Win M17
🏅 Top 322
🏅 Top 3 M22
Longest winning streak8
Current streak0

HISTORY

29 race(s) · 2 split(s) nested
DateRacePerf.Rk
2026
28.06 100km JPN41. Lake Saroma 100 km Ultramarathon 7:04:05 h22
2025
29.06 100km JPN40. Lake Saroma 100 km Ultramarathon 6:47:32 h4
2024
30.06 100km JPN39. Lake Saroma 100 km Ultramarathon 6:57:15 h9
2023
30.07 100km INDIAU 100 km Asia and Oceania Championships 6:55:51 h3 🥉
25.06 100km JPN38. Lake Saroma 100 km Ultramarathon 6:51:20 h4
2022
22.05 100km JPN10th Tokyo Shibamata 100 km 6:50:19 h5
2019
23.11 100km JORIAU 100km Asia and Oceania Championships 7:11:42 h1 🏆
30.06 100km JPN34. Lake Saroma 100 km Ultramarathon 6:32:43 h3 🥉
04.05 100km USA1st Project Carbon X 100k Race 6:19:54 h1 🏆
2018
08.09 100km CROCro100 - total (WC,WMA,open) 6:28:05 h1 🏆
08.09 100km CRO30. IAU 100km WC, Sveti Martin 6:28:05 h1 🏆
24.06 100km JPN33. Lake Saroma 100 km Ultramarathon 6:23:49 h4
2017
25.06 100km JPN32. Lake Saroma 100 km Ultramarathon 6:43:13 h5
21.05 100km JPN23rd Yatsugatake Nobeyama 100 km 8:04:18 h1 🏆
2016
27.11 100km ESP100km Los Alcazares, combined IAU & WMA & open race 6:18:22 h1 🏆
27.11 100km ESP100km Los Alcazares, IAU 100 km WC 6:18:22 h1 🏆
24.09 6h JPN19. Hiratsuka 6 hour race 88.230 km1 🏆
26.06 100km JPN31. Lake Saroma 100 km Ultramarathon 6:39:24 h2 🥈
2015
19.09 6h JPN18. Hiratsuka 6 hour race 83.040 km1 🏆
2014
13.09 6h JPN17. Hiratsuka 6 hour race 84.770 km1 🏆
21.06 6h JPN13. Tokyo Challenge 6 hours 78.400 km1 🏆
2013
14.09 6h JPN16. Hiratsuka 6 hour race 79.580 km1 🏆
15.06 6h JPN12. Tokyo Challenge 6 hours 78.400 km1 🏆
2012
01.09 6h JPN15. Hiratsuka 6 hour race 81.310 km1 🏆
22.04 100km JPN22nd Fuji 5 Lakes 100 km Challenge 7:22:36 h1 🏆
2011
24.09 24h JPN14. Hiratsuka 24 hour race 235.280 km1 🏆
30.04 100km JPN21st Fuji 5 Lakes 100 km Challenge 7:24:21 h2 🥈
2010
11.10 24h JPN13. Hiratsuka 24 hour race 207.400 km1 🏆
25.04 100km JPN20th Fuji 5 Lakes 100 km Challenge 7:56:36 h2 🥈