Makoto (島倉誠) Shimakura
Born : 1975 Cat. M50 Ultrarunner since 2016 JPN
25
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
46
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
47,9%
Rank quotient ?This runner's calculation uses 25 eligible race(s): Σ(rank − 1) = 7 487; Σ finishers = 15 629. 7 487 / 15 629 × 100 = 47.90%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed25
Km — ultra races2 548 km
> 100 km13
> 160 km3
Longest race167,0 km

Km per year (ultra races)

232
2 races
2022
272
2 races
2023
347
3 races
2024
273
3 races
2025
172
2 races
2026

Race types (share of distance)

Road8,6%
Trail91,4%

HISTORY

25 race(s)
DateRacePerf.Rk
2026
20.06 58km JPN2nd Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 10:16:11 h251
09.05 114km JPN4th Aso Volcano Trail 21:44:19 h156
2025
21.06 58km JPN1st Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 10:57:18 h248
10.05 115.1km JPN3rd Aso Volcano Trail 21:04:35 h183
20.04 100km JPN35th Fuji 4 Lakes 100 km Challenge 12:24:59 h626
2024
14.07 65km JPN15th Nozawa Onsen 4100D Mountain Trail 12:01:37 h135
11.05 115.1km JPN2nd Aso Volcano Trail 22:21:38 h173
26.04 167km JPN9th Ultra-Trail Mt. Fuji 37:36:21 h511
2023
13.05 105km JPN1st Aso Volcano Trail 26:36:30 h98
21.04 167km JPN8th Ultra-Trail Mt. Fuji 39:23:11 h877
2022
17.07 65km JPN13th Nozawa Onsen 4100D Mountain Trail 14:37:04 h374
22.04 167km JPN7th Ultra-Trail Mt. Fuji 37:40:26 h776
2019
21.09 143km JPN6th SkyView Ultra-Trail 140 - Yamada Noboru Memorial Cup 35:14:20 h401
13.07 100km JPN12th OSJ Ontake 100km Ultra Trail 15:18:25 h351
11.05 121km JPN3rd Aso Round Trail 29:52:21 h332
2018
02.12 50km JPN6th Kumano Old Trails 9:05:34 h133
22.09 129km JPN5th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup 29:47:00 h208
17.06 55km JPN1st Yuzawa Sky Extreme Trail 11:26:42 h22
12.05 108.7km JPN2nd Aso Round Trail 23:48:12 h159
2017
03.11 48km JPN1st Ninja Trail Run 8:19:36 h131
15.07 100km JPN10th OSJ Ontake 100km Ultra Trail 15:31:15 h414
13.05 108.7km JPN1st Aso Round Trail 25:16:21 h95
2016
30.10 70km JPN2nd OSJ Yamanaka Onsen Trail Run 15:26:48 h131
16.07 100km JPN9th OSJ Ontake 100km Ultra Trail 13:24:47 h205
24.04 118km JPN26th Fuji 5 Lakes 118 km Challenge 14:43:29 h522