Jun (中口淳) Nakaguchi
ID 739367
Born : 1968 Cat. M55 Ultrarunner since 2015 JPN
34
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
28,5%
Rank quotient ?This runner's calculation uses 34 eligible race(s): Σ(rank − 1) = 6 502; Σ finishers = 22 779. 6 502 / 22 779 × 100 = 28.54%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed34
Km — ultra races3 308 km
> 100 km4
> 160 km2
> 24h1
Longest race200,0 km
13th Little Edo Oedo 200k — 11/3/2023

Km per year (ultra races)

100
1 race
2022
200
1 race
2023
50
1 race
2024
151
1 race
2025
159
1 race
2026

Race types (share of distance)

Road84,9%
Trail15,1%

Records

50 km5h21'04100 km10h32'41100 mi25h16'3224 h98,60 km

HISTORY

34 race(s)
DateRacePerf.Rk
2026
06.06 159km JPN7th Nikko Sennin Concentric Highway Journey Run 25:16:32 h25
2025
04.10 151km JPN2nd Noto Country Journey Run 21:55:07 h26
2024
13.10 50km JPN15th Echigo Kubikino 50km Ultramarathon 5:59:04 h123
2023
11.03 200km JPN13th Little Edo Oedo 200k 31:22:38 h66
2022
09.10 100km JPN14th Echigo Kubikino 100km Ultramarathon 12:40:22 h462
2021
07.11 50km JPN8th Nakanoto Treasure Trail Run Festival 7:07:22 h89
20.03 56km JPN24th Mt. Rocco Cannonball Run - 56 km Night Speed 10:05:10 h36
27.02 200km JPN11th Little Edo Oedo 200k 31:53:29 h72
2019
03.11 50km JPN6th Nakanoto Treasure Trail Run Festival 6:30:16 h57
20.10 100km JPN8th Noto Peninsula 100 km Ultra Marathon 11:42:20 h75
06.10 73km JPN5th Gasando Trail running race 11:53:19 h68
08.09 100km JPN7th 100 km Ultramarathon Hakusan-Shirakawago 12:24:27 h147
03.08 24h JPN19th 24-hour relay & solo marathon Kobe 98.600 km98
09.06 100km JPN8th Hida Takayama 100 km Ultramarathon 11:47:46 h603
24.03 100km JPN1st Ibaraki 100k Ultra Marathon 11:38:38 h235
2018
21.10 100km JPN7th Noto Peninsula 100 km Ultra Marathon 11:27:50 h66
09.09 100km JPN6th 100 km Ultramarathon Hakusan-Shirakawago 10:32:41 h76
24.06 100km JPN33. Lake Saroma 100 km Ultramarathon 10:38:04 h641
10.06 100km JPN7th Hida Takayama 100 km Ultramarathon 12:10:58 h541
20.05 100km JPN24th Yatsugatake Nobeyama 100 km 12:06:26 h403
22.04 100km JPN28th Fuji 5 Lakes 100 km Challenge 11:07:05 h247
2017
22.10 50km JPN3rd Gasando Trail running race 8:19:43 h77
10.09 100km JPN5th 100 km Ultramarathon Hakusan-Shirakawago 11:17:33 h90
01.07 45km JPN7th Utsukushigahara 45 km Trail Run 6:24:50 h81
11.06 100km JPN6th Hida Takayama 100 km Ultramarathon 11:14:07 h360
21.05 100km JPN23rd Yatsugatake Nobeyama 100 km 12:05:37 h295
23.04 100km JPN27th Fuji 5 Lakes 100 km Challenge 10:51:23 h268
2016
13.11 75km JPN2nd Gasando Trail running race 11:50:03 h108
16.10 100km JPN5th Noto Peninsula 100 km Ultra Marathon 11:56:29 h77
11.09 100km JPN4th 100 km Ultramarathon Hakusan-Shirakawago 11:49:12 h130
05.06 100km JPN4th Tokyo Shibamata 100 km 12:08:42 h529
24.04 100km JPN8th 100 km Ultra Maranic Osaka 11:46:54 h122
2015
18.10 100km JPN4th Noto Peninsula 100 km Ultra Marathon 12:35:13 h151
13.09 50km JPN3rd 50 km Ultramarathon Hakusan-Shirakawago 5:21:04 h92