Kenji (門脇健児) Kadowaki
ID 1124969
Born : 1974 Cat. M50 Ultrarunner since 2018 JPN
45
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
62
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
20,0%
Rank quotient ?This runner's calculation uses 45 eligible race(s): Σ(rank − 1) = 2 801; Σ finishers = 13 976. 2 801 / 13 976 × 100 = 20.04%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed45
Km — ultra races5 158 km
> 100 km15
> 160 km9
> 200 km7
> 24h2
Longest race300,0 km
4th Round of the Boso Peninsula 300K — 18/7/2026

Km per year (ultra races)

305
4 races
2022
715
6 races
2023
1 153
8 races
2024
1 171
10 races
2025
1 065
8 races
2026

Race types (share of distance)

Road84,5%
Trail15,5%

Wins & podiums (ultra)

🏆 Win7
🏆 Win M7
🏅 Top 317
🏅 Top 3 M17
Longest winning streak2
Current streak0

Records

50 km7h26'23100 km8h52'0050 mi6h31'56100 mi22h23'016 h79,55 km12 h129,81 km24 h217,15 km

HISTORY

45 race(s) · 1 split(s) nested
DateRacePerf.Rk
2026
18.07 300km JPN4th Round of the Boso Peninsula 300K 43:14:59 h3 🥉
05.07 48km JPN13th Naeba-Sanroku Geopark Tsunan Ultramarathon 48K 3:54:29 h3 🥉
30.05 105km JPN4th Okumusashi Long Trail Race 105K 29:19:00 h65
11.04 8h JPN21st Toda Saiko 8 Hours 85.000 km7
28.03 12h JPN17th Jingu Gaien 12 Hour Ultramarathon 125.833 km4
14.03 260km JPN16th Little Edo Oedo 260k 33:14:31 h8
08.02 6h TPE15th Taipei 6hr Ultra Marathon Sunday Run 79.546 km1 🏆
01.02 62km JPN4. Minuma Challenge 60 4:55:40 h1 🏆
2025
30.11 50km JPN12th Trainic world Soto-Chichibu Trail Run 50km 7:26:23 h19
19.10 60km JPN31th River Shimanto 60km 4:32:51 h7
13.09 24h JPN20. Shonan Int. Relay Marathon 24 Hour Run 217.148 km1 🏆
02.08 100km JPN1st Chiba Ultra Marathon 100km Run 12:05:46 h2 🥈
06.07 48km JPN12th Naeba-Sanroku Geopark Tsunan Ultramarathon 48K 4:29:45 h3 🥉
21.06 24h JPN20th Green Charity Marathon Tokyo - Hard Run 24H 202.860 km2 🥈
12.04 71km JPN20th Toda Saiko 70 km 5:12:16 h4
15.03 230km JPN15th Little Edo Oedo 230k 27:59:58 h3 🥉
08.03 12h JPN16th Jingu Gaien 12 Hour Ultramarathon 129.807 km1 🏆
26.01 62km JPN3. Minuma Challenge 60 5:21:26 h1 🏆
2024
20.10 70km JPN31. Ultramarathon Okumusashi 6:05:54 h11
13.10 12h JPN2nd Aizu Yanaizu Akabeko Marathon - 12h 120.750 km3 🥉
29.09 100km JPN2nd Mount Akagi 100 Ultra Marathon 9:34:58 h6
14.09 122km JPN7th Utsukushima Fukushima Journey Run 122K 13:52:07 h2 🥈
13.07 280km JPN2nd Round of the Boso Peninsula 280K 2d 03:10:01 h5
14.04 100km JPN9th Tamagawa Ultra Marathon - 100 km 8:52:00 h1 🏆
06.04 160km JPN3rd Yagurazawa Round Trip Pre-Tournament 22:23:01 h6
09.03 200km JPN14th Little Edo Oedo 200k 28:06:56 h26
2023
10.12 70km JPN10th Izu Trail Journey 11:46:56 h694
03.11 250km JPN4th Tokyo Great Race 250km RE 31:42:37 h1 🏆
15.10 100km JPN29th River Shimanto 100km 10:37:03 h194
01.10 45km JPN10th Trainic world Soto-Chichibu Trail Run 45km 6:01:52 h5
02.07 8h JPN29th 8-Hour Endurance Race Tokorozawa - 3 tai 83.300 km2 🥈
21.04 167km JPN8th Ultra-Trail Mt. Fuji 32:58:10 h367
2022
11.12 70km JPN9th Izu Trail Journey 9:34:51 h211
02.10 64km JPN9th Naeba-Sanroku Geopark Tsunan Ultramarathon 64K 5:24:12 h2 🥈
04.06 100km JPN2nd Minakami Trail Race - 100km 22:44:09 h27
09.04 71km JPN17th Toda Saiko 70 km 5:40:28 h5
2021
12.12 69.1km JPN8th Izu Trail Journey 8:36:43 h101
24.10 70km JPN6th Ryoma Dappan Trail Race 10:19:23 h38
03.10 84km JPN8th Naeba-Sanroku Geopark Tsunan Ultramarathon 84K 7:12:15 h5
04.07 8h JPN27th 8-Hour Endurance Race Tokorozawa 93.100 km11
29.03 80km JPN2nd Tokyo Katsushika Ultra Marathon - 80km 6:31:56 h4
2019
07.10 100km JPN1st Fuji 4 Lakes 100 km Autumn Challenge 9:03:21 h15
29.09 53km JPN7th Trainic world Soto-Chichibu Trail Run 50km 7:39:41 h28
19.05 100km JPN7th Tokyo Shibamata 100 km 10:35:56 h223
2018
03.06 100km JPN6th Tokyo Shibamata 100 km 13:18:23 h718