Mamoru (宮本護) Miyamoto
ID 180147
Born : 1982 Cat. M40 Ultrarunner since 2010 JPN
43
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
65
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 ?JPNJapanTPETaiwan
4,2%
Rank quotient ?This runner's calculation uses 43 eligible race(s): Σ(rank − 1) = 878; Σ finishers = 21 040. 878 / 21 040 × 100 = 4.17%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed43
Km — ultra races5 526 km
> 100 km17
> 160 km11
> 200 km5
> 24h3
Longest race300,0 km
4th Round of the Boso Peninsula 300K — 18/7/2026

Km per year (ultra races)

635
6 races
2022
600
4 races
2023
1 106
6 races
2024
497
3 races
2025
1 024
6 races
2026

Race types (share of distance)

Road96,4%
Trail3,6%

Wins & podiums (ultra)

🏆 Win4
🏆 Win M4
🏅 Top 311
🏅 Top 3 M11
Longest winning streak1
Current streak1

Records

100 km7h51'4150 mi6h30'0224 h181,90 km

HISTORY

43 race(s) · 4 split(s) nested
DateRacePerf.Rk
2026
18.07 300km JPN4th Round of the Boso Peninsula 300K 41:38:07 h1 🏆
05.07 80km JPN13th Naeba-Sanroku Geopark Tsunan Ultramarathon 80K 6:30:02 h3 🥉
23.05 24h JPNIAU 24h Asia and Oceania Championships Open 175.000 km28
11.04 8h JPN21st Toda Saiko 8 Hours 100.000 km1 🏆
14.03 200km JPN16th Little Edo Oedo 200k 22:53:42 h2 🥈
07.02 24h TPE15th Taipei 24hr Ultra Marathon 169.422 km23
2025
28.09 76.5km JPN3rd Mina no Tenku Ultra Marathon 6:37:41 h4
19.07 300km JPN3rd Round of the Boso Peninsula 300K 47:49:06 h1 🏆
20.04 120km JPN35th Fuji 5 Lakes Sparta Challenge 10:53:16 h20
2024
22.09 75km JPN2nd Mina no Tenku Ultra Marathon 7:16:02 h4
17.08 24h JPN24th 24-hour relay & solo marathon Kobe 181.900 km16
13.07 280km JPN2nd Round of the Boso Peninsula 280K 2d 00:43:11 h2 🥈
03.05 251km JPN19th River Road Foot Race 251 km 38:21:38 h10
21.04 118km JPN34th Fuji 5 Lakes 118 km Challenge 10:47:32 h14
07.01 200km JPN4th Japan Trophy 200 25:54:17 h13
2023
28.10 147km JPN5th Autumn leaves in Okumusashi / Chichibu Journey run 16:28:13 h3 🥉
15.07 280km JPN1st Round of the Boso Peninsula 280K 2d 04:36:55 h6
13.05 55km JPN3rd Kimitsu Ultra Marathon 4:28:56 h2 🥈
16.04 118km JPN33th Fuji 5 Lakes 118 km Challenge 10:03:01 h7
2022
29.10 146km JPN4th Autumn leaves in Okumusashi / Chichibu Journey run 15:44:44 h3 🥉
02.10 100km JPN9th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K 9:53:32 h5
03.07 8h JPN28th 8-Hour Endurance Race Tokorozawa 53.900 km145
05.06 78km JPN29. Ultramarathon Okumusashi 6:22:59 h17
07.05 57km JPN2nd Kimitsu Ultra Marathon 4:54:04 h5
09.01 200km JPN2nd Japan Trophy 200 22:49:00 h11
2021
30.10 146km JPN3rd Autumn leaves in Okumusashi / Chichibu Journey run 15:04:05 h4
03.10 100km JPN8th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K 9:01:20 h5
04.07 8h JPN27th 8-Hour Endurance Race Tokorozawa 98.000 km3 🥉
08.05 57km JPN1st Kimitsu Ultra Marathon 4:38:51 h1 🏆
2019
22.09 100km JPN29. Akita Nairiku 100km Marathon 7:51:41 h4
29.06 8h JPN25th 8-Hour Endurance Race Tokorozawa 98.000 km4
02.06 78km JPN26. Ultramarathon Okumusashi 6:22:02 h23
21.04 100km JPN29th Fuji 5 Lakes 100 km Challenge 9:23:35 h66
2017
04.06 78km JPN24. Ultramarathon Okumusashi 6:24:20 h25
2016
09.10 100km JPN11th Echigo Kubikino 100km Ultramarathon 7:56:05 h6
05.06 78km JPN23. Ultramarathon Okumusashi 6:28:15 h43
22.05 100km JPN22nd Yatsugatake Nobeyama 100 km 9:09:56 h14
2015
22.06 77km JPN22. Ultramarathon Okumusashi 6:25:58 h24
2011
07.08 77km JPN18. Ultramarathon Okumusashi 6:56:01 h51
30.04 100km JPN21st Fuji 5 Lakes 100 km Challenge 8:55:40 h18
2010
01.08 77km JPN17. Ultramarathon Okumusashi 7:22:41 h68
16.05 100km JPN16th Yatsugatake Nobeyama 100 km 11:12:11 h175
25.04 100km JPN20th Fuji 5 Lakes 100 km Challenge 9:33:04 h41