Yasushi (高坂恭司) Kohsaka
Born : 1978 Cat. M45 Ultrarunner since 2013 JPN
34
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
5
Countries visited ?ESPSpainFRAFranceHKGHong KongITAItalyJPNJapan
34,0%
Rank quotient ?This runner's calculation uses 34 eligible race(s): Σ(rank − 1) = 8 673; Σ finishers = 25 477. 8 673 / 25 477 × 100 = 34.04%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed34
Km — ultra races3 441 km
> 100 km13
> 160 km5
Longest race170,0 km

Km per year (ultra races)

161
1 race
2022
145
1 race
2023
105
1 race
2024
151
2 races
2025
2026

Race types (share of distance)

Road2,9%
Trail97,1%

HISTORY

34 race(s)
DateRacePerf.Rk
2025
15.11 101km JPN4th Kumagawa Revival Trail 20:50:06 h42
02.11 50km JPN1st Jyoetsumyoko Express Trail 6:48:50 h31
2024
11.10 105km ITAValdambra Plus Ultra Trail Goro 66M 18:41:33 h37
2023
29.08 145km ITA13ème Sur les Traces des Ducs de Savoie 39:17:59 h638
2022
08.07 161km ESPVal d'Aran by UTMB - Torn dera Val d'Aran 40:59:48 h145
2019
08.12 71.7km JPN6th Izu Trail Journey 8:15:42 h87
2018
17.11 106km JPN4th FunTrails100K Round 19:42:04 h39
23.08 167.5km FRAGrand Raid des Pyrénées - Ultra Tour 42:55:39 h141
2017
17.08 169km FRAUltra Tour des 4 Massifs (UT4M) Xtrem 41:02:00 h42
25.06 72.7km JPN4. Spatrail - Shima to Kusatsu 9:12:15 h49
21.05 100km JPN23rd Yatsugatake Nobeyama 100 km 10:29:59 h77
23.04 70km JPN3rd Okumikawa Power Trail 10:43:57 h103
2016
30.10 70km JPN2nd OSJ Yamanaka Onsen Trail Run 14:07:24 h79
26.08 170km FRA14ème Ultra Trail Tour du Mont Blanc 43:15:11 h942
16.07 100km JPN9th OSJ Ontake 100km Ultra Trail 12:52:21 h136
22.05 100km JPN22nd Yatsugatake Nobeyama 100 km 11:19:06 h220
13.02 50km JPN7th OSJ Jungle Trail 50K Amami 5:24:21 h27
2015
12.12 100km HKG3rd The North Face 100 Hong Kong 22:03:40 h94
22.10 167km FRA23ème Grand Raid Réunion - La Diagonale des Fous 2d 03:34:27 h942
22.09 110km JPN7th Shinetsu Five Mountains Trail 110km 17:02:49 h162
19.07 118km JPN2nd SkyView Ultra-Trail - Yamada Noboru Memorial Cup 24:32:11 h66
04.07 80km JPN5th Utsukushigahara 80 km Trail Run 12:37:53 h107
17.05 100km JPN21st Yatsugatake Nobeyama 100 km 11:54:48 h368
15.03 72km JPN2nd Izu Trail Journey 10:44:06 h257
08.02 50km JPN6th OSJ Jungle Trail 50K Amami 5:43:31 h35
17.01 100km HKG5th Hong Kong 100 Ultra Trail Race 23:35:24 h991
2014
12.10 71.5km JPN22nd Hasetsune Cup - Japan Mountain Endurance Race 13:13:25 h510
20.09 120km JPN1st SkyView Ultra-Trail - Yamada Noboru Memorial Cup 26:29:42 h175
27.08 119km ITA5ème Sur les Traces des Ducs de Savoie 29:45:17 h698
19.07 100km JPN7th OSJ Ontake 100km Ultra Trail 14:27:15 h265
26.04 88km JPN3rd Shizuoka to Yamanashi 19:12:15 h202
12.01 100km JPN24th Miyako 100 km Ultramarathon 11:57:03 h134
2013
13.10 71.5km JPN21st Hasetsune Cup - Japan Mountain Endurance Race 14:51:21 h715
13.07 65km JPN4th Nozawa Onsen 4100D Mountain Trail 11:22:44 h151