Jun (市原淳) Ichihara
Born : 1964 Cat. M60 Ultrarunner since 2012 JPN
32
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
42
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
48,1%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 12 299; Σ finishers = 25 589. 12 299 / 25 589 × 100 = 48.06%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races2 493 km
> 100 km6
> 160 km2
Longest race170,0 km

Km per year (ultra races)

172
3 races
2022
50
1 race
2023
115
1 race
2024
2025
2026

Race types (share of distance)

Trail100,0%

HISTORY

32 race(s)
DateRacePerf.Rk
2024
11.05 115.1km JPN2nd Aso Volcano Trail 23:43:41 h242
2023
17.12 50km JPN7th Minami-aso caldera Trail 9:20:10 h103
2022
02.07 50km JPN12th Utsukushigahara 50 km Trail Run 10:05:36 h162
12.06 53km JPN4th Yuzawa Sky Extreme Trail 12:30:34 h80
23.04 69km JPN1st KAI 69k 14:27:02 h164
2021
12.12 69.1km JPN8th Izu Trail Journey 12:20:31 h883
23.07 65km JPN12th Nozawa Onsen 4100D Mountain Trail 12:51:27 h335
2020
13.12 66km JPN7th Izu Trail Journey 11:39:47 h746
18.10 54km JPN7th Shigakogen Extreme Trail 12:17:58 h339
2019
08.12 71.7km JPN6th Izu Trail Journey 11:07:15 h704
14.09 100mi JPN11th Shinetsu Five Mountains Trail 100 mile 32:47:42 h309
13.07 65km JPN10th Nozawa Onsen 4100D Mountain Trail 12:24:44 h192
15.06 55km JPN2nd Yuzawa Sky Extreme Trail 10:49:58 h76
09.02 50km JPN10th OSJ Jungle Trail 50K Amami 6:37:33 h54
2018
16.12 68km JPNCoast to Coast 70k Trail Run 10:01:15 h229
09.12 71.7km JPN5th Izu Trail Journey 12:43:51 h843
25.08 65km JPN21st Mt. Tateyama Climbathon 9:01:26 h63
24.06 72.7km JPN5. Spatrail - Shima to Kusatsu 12:06:24 h301
27.04 170km JPN5th Ultra-Trail Mt. Fuji 42:29:24 h603
2017
10.12 71.7km JPN4th Izu Trail Journey 12:54:48 h814
08.10 71.5km JPN25th Hasetsune Cup - Japan Mountain Endurance Race 16:33:03 h785
23.09 129km JPN4th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup 31:39:05 h342
2016
11.12 71.7km JPN3rd Izu Trail Journey 12:57:55 h835
22.10 60km JPN3rd Shigakogen Extreme Trail 10:52:26 h137
11.09 129km JPN3rd SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup 31:16:11 h228
26.06 72.7km JPN3. Spatrail - Shima to Kusatsu 11:42:06 h317
2015
31.10 71.5km JPN23rd Hasetsune Cup - Japan Mountain Endurance Race 14:11:42 h746
22.09 110km JPN7th Shinetsu Five Mountains Trail 110km 19:04:11 h274
2014
12.10 71.5km JPN22nd Hasetsune Cup - Japan Mountain Endurance Race 12:45:45 h438
07.09 50km JPN7th OSJ Adatara Trail 50K 10:35:43 h118
2013
13.10 71.5km JPN21st Hasetsune Cup - Japan Mountain Endurance Race 12:50:39 h390
2012
07.10 71.5km JPN20th Hasetsune Cup - Japan Mountain Endurance Race 13:30:55 h479