Jun (松尾潤) Matsuo
Born : 1985 Cat. M40 Ultrarunner since 2015 JPN
31
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
60
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
2
Countries visited ?JPNJapanMASMalaysia
59,6%
Rank quotient ?This runner's calculation uses 31 eligible race(s): Σ(rank − 1) = 4 928; Σ finishers = 8 263. 4 928 / 8 263 × 100 = 59.64%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed31
Km — ultra races4 672 km
> 100 km17
> 160 km8
> 200 km7
> 24h1
Longest race570,0 km

Km per year (ultra races)

101
1 race
2022
699
5 races
2023
1 245
5 races
2024
855
6 races
2025
621
2 races
2026

Race types (share of distance)

Road76,9%
Trail23,1%

HISTORY

31 race(s)
DateRacePerf.Rk
2026
20.06 105km JPN2nd Kaga Spa by UTMB - Kaga Spa Trail Endurance100 24:00:59 h451
30.04 516km JPN21st River Road Foot Race 516 km 5d 03:19:37 h32
2025
08.11 100km JPN4th Tokyo 100 27:37:46 h62
27.09 96.7km MAS2nd Malaysia Ultra-Trail by UTMB - MY100 23:19:19 h60
20.07 99.5km JPN17th OSJ Ontake 100km Ultra Trail 15:51:18 h527
21.06 58km JPN1st Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 12:05:22 h394
03.05 251km JPN20th River Road Foot Race 251 km 47:38:18 h20
21.03 250km JPN1st Izuichi Great Race 250km 47:47:38 h25
2024
16.11 50km JPN10th FunTrails50K Round 10:58:46 h386
13.07 266km JPN8th Michinoku Tsugaru Journey Run 266K 2d 02:15:44 h42
08.06 159km JPN5th Nikko Sennin Concentric Highway Journey Run 27:41:54 h44
27.04 570km JPN3rd Reiheishi Michi Kyoto to Nikko - 570 km 9d 01:59:45 h18
09.03 200km JPN14th Little Edo Oedo 200k 34:36:07 h145
2023
03.11 250km JPN4th Tokyo Great Race 250km RE 46:26:34 h24
24.09 100km JPN1st Mount Akagi 100 Ultra Marathon 14:23:16 h87
17.06 159km JPN4th Nikko Sennin Concentric Highway Journey Run 28:55:34 h22
16.04 100km JPN33th Fuji 4 Lakes 100 km Challenge 12:29:57 h475
11.03 90km JPN13th Little Edo 90k 11:17:46 h24
2022
20.08 101km JPN9th World Cultural Heritage "Fuji" Foot Race 16:15:07 h94
2021
25.04 60km JPN6th Tamagawa Ultra Marathon - 60 km 8:39:28 h6
2020
24.10 146km JPN2nd Autumn leaves in Okumusashi / Chichibu Journey run 25:38:04 h194
2019
02.11 145km JPN1st Autumn leaves in Okumusashi / Chichibu Journey run 25:56:50 h163
29.06 8h JPN25th 8-Hour Endurance Race Tokorozawa 53.900 km254
2018
29.09 24h JPN3rd Coedo Kawagoe Running Fest 24-hours run 100.100 km23
08.09 49.8km JPN6th Trainic world Soto-Chichibu Trail Run 50km 9:57:01 h203
30.06 8h JPN24th 8-Hour Endurance Race Tokorozawa 49.000 km189
19.05 106km JPN3rd Trainic World 100 km in Sai-No-Kuni 28:26:05 h212
03.03 204km JPN8th Little Edo Oedo 200k 35:26:49 h217
2016
03.09 110km JPN1st Trainic World 100 km in Sai-No-Kuni 27:02:58 h32
2015
21.10 56km JPN1st FunTrails50K Two Lakes&Green line 10:57:57 h248
19.04 71km JPN25th Fuji 5 Lakes 71 km Challenge 9:02:16 h286