Masatoshi (藤井雅敏) Fujii
Born : 1979 Cat. M45 Ultrarunner since 2015 JPN
25
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
37
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
7
Countries visited ?FRAFranceHKGHong KongJPNJapanKORSouth KoreaMASMalaysiaTHAThailandVIEVietnam
20,7%
Rank quotient ?This runner's calculation uses 25 eligible race(s): Σ(rank − 1) = 4 358; Σ finishers = 21 095. 4 358 / 21 095 × 100 = 20.66%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed25
Km — ultra races1 997 km
> 100 km4
> 160 km2
Longest race176,0 km

Km per year (ultra races)

176
2 races
2022
364
4 races
2023
396
5 races
2024
54
1 race
2025
2026

Race types (share of distance)

Road9,0%
Trail91,0%

HISTORY

25 race(s)
DateRacePerf.Rk
2025
27.09 53.6km MAS2nd Malaysia Ultra-Trail by UTMB - MY50 7:17:35 h20
2024
07.12 53km THA1st Chiangmai Thailand by UTMB - HMONG 50 6:14:11 h69
09.11 52km HKG11th TransLantau 50 by UTMB 8:43:32 h32
30.08 176km FRA21ème Ultra Trail Tour du Mont Blanc 42:32:16 h1120
14.07 65km JPN15th Nozawa Onsen 4100D Mountain Trail 8:52:00 h20
25.05 50km JPN3rd Tokyo Grand Trail - 50km 10:03:52 h10
2023
09.12 96.5km THA4th Doi Inthanon Thailand by UTMB - ELEPHANT 100 16:59:53 h93
07.10 52km KOR10th TransJeju by UTMB 50 6:12:55 h21
23.09 48km VIE11. Vietnam Mountain Marathon 50km 7:38:05 h13
21.04 167km JPN8th Ultra-Trail Mt. Fuji 33:07:06 h374
2022
10.12 104km THA3rd Thailand by UTMB - 104km 19:23:07 h56
09.10 71.5km JPN30th Hasetsune Cup - Japan Mountain Endurance Race 11:52:32 h175
2021
12.12 69.1km JPN8th Izu Trail Journey 8:59:19 h152
02.10 100km JPN1st Minakami Trail Race - 100km 24:04:16 h16
2020
13.12 66km JPN7th Izu Trail Journey 8:53:03 h184
20.09 80km JPN6th Nishi Seto Expressway Ultra Run 15:17:59 h66
2019
26.10 100km JPN1st Tsurugashima 100km 20:52:00 h65
2018
16.09 110km JPN10th Shinetsu Five Mountains Trail 110km 16:50:37 h52
24.06 72.7km JPN5. Spatrail - Shima to Kusatsu 10:20:06 h83
2017
10.12 71.7km JPN4th Izu Trail Journey 10:54:13 h310
17.09 52km JPN9th Shinetsu Five Mountains Trail 110km 6:10:27 h83
25.06 72.7km JPN4. Spatrail - Shima to Kusatsu 10:01:38 h122
2016
16.12 70km JPNCoast to Coast 70k Trail Run 8:49:24 h99
26.06 72.7km JPN3. Spatrail - Shima to Kusatsu 10:56:43 h197
2015
31.10 71.5km JPN23rd Hasetsune Cup - Japan Mountain Endurance Race 15:18:29 h951