Shinichi (西山真一) Nishiyama
Born : 1984 Cat. M40 Ultrarunner since 2019 JPN
29
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
51
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 ?JPNJapanNZLNew ZealandTHAThailand
13,8%
Rank quotient ?This runner's calculation uses 29 eligible race(s): Σ(rank − 1) = 1 863; Σ finishers = 13 481. 1 863 / 13 481 × 100 = 13.82%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed29
Km — ultra races3 195 km
> 100 km13
> 160 km11
> 200 km1
Longest race225,0 km

Km per year (ultra races)

611
7 races
2022
610
5 races
2023
795
6 races
2024
660
4 races
2025
280
3 races
2026

Race types (share of distance)

Road6,3%
Trail93,7%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 31
🏅 Top 3 M2
Longest winning streak1
Current streak0

HISTORY

29 race(s)
DateRacePerf.Rk
2026
31.05 100km JPN1st Nara Ultra Marathon 9:52:38 h128
09.05 50mi JPN12th Mt. Hiei Int. 50 Mile Trail Run 10:32:57 h13
11.04 100km JPN1st Hiroshima Trail 17:25:45 h9
2025
05.12 100mi THA2nd Chiangmai Thailand by UTMB - CHIANG DAO 100 36:28:25 h106
10.10 169km JPN5th Lake Biwa 100 36:43:38 h50
21.06 105km JPN1st Kaga Spa by UTMB - Kaga Spa Trail Endurance100 17:52:05 h42
03.05 225km JPN2nd World Heritage Pilgrimage Triangle 225km 2d 04:33:42 h4
2024
28.12 100Miles JPN5th Kyoto Great Round 100 miles 29:23:38 h6
03.11 68km JPN8th Koshu Alps Haute Route Challenge 11:22:59 h11
11.10 169km JPN4th Lake Biwa 100 37:18:31 h38
14.07 65km JPN15th Nozawa Onsen 4100D Mountain Trail Pair 9:31:05 h1 🏆
26.04 167km JPN9th Ultra-Trail Mt. Fuji 32:11:17 h171
16.02 165km NZL6th Tarawera 100 Mile Endurance Run 28:23:25 h126
2023
29.12 130km JPN4th Kyoto Great Round 130 km 23:33:43 h4
06.10 169km JPN3rd Lake Biwa 100 38:53:42 h80
10.09 50km JPN12th Hakuba Int. Trail Run 6:32:46 h17
08.07 100km JPN1st Shiga Kogen 100 17:45:28 h46
20.05 100mi JPN8th Trainic World 100 Mile in Sai-No-Kuni 32:49:42 h48
2022
28.10 56km JPN27th Mt. Rocco Cannonball Run - 56 km Night Speed 6:44:10 h4
09.10 71.5km JPN30th Hasetsune Cup - Japan Mountain Endurance Race 11:35:53 h153
17.09 162.6km JPN14th Shinetsu Five Mountains Trail 100 mile 32:25:54 h169
12.06 53km JPN4th Yuzawa Sky Extreme Trail 8:28:36 h24
27.05 45km JPN1st Karuizawa Trail Running Race 6:34:11 h42
22.04 167km JPN7th Ultra-Trail Mt. Fuji 27:22:30 h149
19.03 56km JPN26th Mt. Rocco Cannonball Run - 56 km Night Speed 6:49:30 h4
2021
12.12 69.1km JPN8th Izu Trail Journey 8:44:08 h124
25.09 54km JPN8th Shigakogen Extreme Trail 8:09:33 h27
2020
13.12 66km JPN7th Izu Trail Journey 9:05:39 h216
2019
25.05 50km JPN5th Mt. Hiei Int. 50 km Trail Run 8:54:30 h80