Yukimasa (黒澤幸正) Kurosawa
Born : 1971 Cat. M55 Ultrarunner since 2014 JPN
32
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
48
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
8
Countries visited ?AUTAustriaCROCroatiaESPSpainFRAFranceITAItalyJPNJapanKORSouth KoreaSUISwitzerland
73,6%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 12 997; Σ finishers = 17 648. 12 997 / 17 648 × 100 = 73.65%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races2 828 km
> 100 km10
> 160 km3
Longest race171,0 km

Km per year (ultra races)

283
3 races
2022
377
3 races
2023
181
2 races
2024
107
2 races
2025
100
1 race
2026

Race types (share of distance)

Trail100,0%

HISTORY

32 race(s)
DateRacePerf.Rk
2026
16.05 100km JPN11th Trainic World 100 km in Sai-No-Kuni 28:38:26 h172
2025
05.07 55km JPN3rd Shiga Kogen 55 9:38:29 h161
07.06 52.4km JPN5th Okushinano 100 - 50 km 8:32:51 h157
2024
13.10 71.5km JPN32th Hasetsune Cup - Japan Mountain Endurance Race 15:59:10 h625
18.05 109.2km JPN9th Trainic World 100 km in Sai-No-Kuni 25:52:06 h109
2023
29.08 145km ITA13ème Sur les Traces des Ducs de Savoie 42:36:07 h875
16.07 65km JPN14th Nozawa Onsen 4100D Mountain Trail 13:10:54 h195
21.04 167km JPN8th Ultra-Trail Mt. Fuji 41:38:21 h1204
2022
04.09 50km JPN11th Hakuba Int. Trail Run 8:48:08 h252
17.07 65km JPN13th Nozawa Onsen 4100D Mountain Trail 12:25:27 h214
08.04 168km CRO10th Istria by UTMB - Red Course 37:48:08 h105
2021
04.12 50km FRAL'Origole 50 7:55:19 h153
02.10 77km FRA2ème Ultra Trail des Montagnes du Jura - La Renarde 14:20:58 h146
24.08 55km ITA11ème TDS Bourg Saint Maurice 12:01:57 h788
10.07 55km ESPVal d'Aran by UTMB - Peades d'Aigua 13:12:59 h719
25.06 120km ITA14^ Lavaredo Ultra Trail by UTMB - 120K 28:43:21 h779
2020
18.10 75km FRA20ème Grand Trail du Lac 14:30:36 h367
22.08 99km FRAUltra 01 - 99km 22:02:45 h110
2019
30.08 171km FRA17ème Ultra Trail Tour du Mont Blanc 45:27:41 h1416
20.07 51km SUI7. Eiger Ultra Trail 51 km 10:18:48 h602
31.05 84km AUT5. Hochkönigman Endurance Trail 21:23:40 h155
16.03 80km FRA12ème EcoTrail de Paris - Ile de France 11:05:08 h1222
2018
09.06 109.8km SUI1ère Swiss Canyon Ultra Trail 24:50:48 h117
2017
04.11 130km ESPGran Vuelta Valle del Genal 31:31:23 h297
30.07 65km FRATrail de l'Etendard 14:15:23 h74
09.07 50km FRA10ème Trail du Pays Welche 8:42:26 h170
2016
21.10 110km CRODalmacija Ultratrail 110km 27:55:25 h38
2015
31.10 100km KOR1st Busan 100k Ultra Trail Race 22:46:28 h38
28.08 101km ITA10ème Courmayeur-Champex-Chamonix 25:53:36 h1316
19.07 65km JPN6th Nozawa Onsen 4100D Mountain Trail 13:39:27 h239
04.07 45km JPN5th Utsukushigahara 45 km Trail Run 6:47:58 h100
2014
15.08 87km SUI2. Swiss Irontrail T81 32:49:34 h114