Masato (内田雅人) Uchida
ID 408874
Born : 1983 Cat. M40 Ultrarunner since 2013 JPN
30
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
49
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
11,7%
Rank quotient ?This runner's calculation uses 30 eligible race(s): Σ(rank − 1) = 2 677; Σ finishers = 22 808. 2 677 / 22 808 × 100 = 11.74%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed30
Km — ultra races2 743 km
> 100 km5
Longest race118,0 km
29th Fuji 5 Lakes 118 km Challenge — 21/4/2019

Km per year (ultra races)

200
2 races
2022
100
1 race
2023
2024
100
1 race
2025
2026

Race types (share of distance)

Road83,8%
Trail16,2%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 32
🏅 Top 3 M2
Longest winning streak0
Current streak0

Records

50 km4h20'54100 km8h29'496 h74,39 km

HISTORY

30 race(s)
DateRacePerf.Rk
2025
08.06 100km JPN13th Hida Takayama 100 km Ultramarathon 11:14:33 h297
2023
16.04 100km JPN33th Fuji 4 Lakes 100 km Challenge 10:01:53 h93
2022
12.06 100km JPN10th Hida Takayama 100 km Ultramarathon 9:51:53 h88
17.04 100km JPN32th Fuji 5 Lakes 100 km Challenge 9:46:19 h108
2019
20.10 100km JPN8th Noto Peninsula 100 km Ultra Marathon 8:29:49 h5
14.09 6h JPN14. Shonan Int. Relay Marathon 6 hour Run 74.390 km4
21.04 118km JPN29th Fuji 5 Lakes 118 km Challenge 10:58:13 h17
2018
21.10 100km JPN7th Noto Peninsula 100 km Ultra Marathon 8:38:32 h2 🥈
30.06 45km JPN8th Utsukushigahara 45 km Trail Run 5:10:24 h14
10.06 100km JPN7th Hida Takayama 100 km Ultramarathon 9:06:35 h25
22.04 100km JPN28th Fuji 5 Lakes 100 km Challenge 8:55:37 h19
2017
15.10 100km JPN6th Noto Peninsula 100 km Ultra Marathon 8:44:14 h5
03.09 49.6km JPN6th Trainic world Ogose-Tokigawa Trail Run 50km 6:20:57 h10
15.07 100km JPN10th OSJ Ontake 100km Ultra Trail 11:19:50 h32
11.06 100km JPN6th Hida Takayama 100 km Ultramarathon 8:59:06 h32
23.04 100km JPN27th Fuji 5 Lakes 100 km Challenge 8:46:51 h20
2016
16.10 100km JPN5th Noto Peninsula 100 km Ultra Marathon 8:50:10 h2 🥈
28.08 70km JPN3rd Tsukuba Renjyo 70 km Road & Trail Run 8:25:43 h38
10.07 49.6km JPN5th Trainic world Ogose-Tokigawa Trail Run 50km 7:12:19 h21
12.06 100km JPN5th Hida Takayama 100 km Ultramarathon 10:26:27 h136
24.04 118km JPN26th Fuji 5 Lakes 118 km Challenge 12:53:26 h156
2015
19.07 65km JPN6th Nozawa Onsen 4100D Mountain Trail 14:01:41 h262
07.06 100km JPN4th Hida Takayama 100 km Ultramarathon 9:44:07 h51
19.04 118km JPN25th Fuji 5 Lakes 118 km Challenge 12:56:08 h126
2014
20.07 65km JPN5th Nozawa Onsen 4100D Mountain Trail 16:04:05 h440
08.06 100km JPN3rd Hida Takayama 100 km Ultramarathon 10:32:46 h114
20.04 108km JPN24th Fuji 5 Lakes 108 km Challenge 12:08:52 h157
2013
29.09 50km JPN1st 50 km Ultramarathon Hakusan-Shirakawago 4:20:54 h12
09.06 100km JPN2nd Hida Takayama 100 km Ultramarathon 11:31:53 h179
21.04 112km JPN23rd Fuji 5 Lakes 112 km Challenge 14:21:42 h242