Tomoyuki (有馬智之) Arima
Born : 1985 Cat. M40 Ultrarunner since 2013 JPN
32
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
5
Countries visited ?FRAFranceHKGHong KongJPNJapanKORSouth KoreaTPETaiwan
56,0%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 10 968; Σ finishers = 19 575. 10 968 / 19 575 × 100 = 56.03%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races3 138 km
> 100 km10
> 160 km4
Longest race170,0 km

Km per year (ultra races)

473
4 races
2022
444
3 races
2023
200
2 races
2024
167
1 race
2025
2026

Race types (share of distance)

Road20,7%
Trail79,3%

HISTORY

32 race(s)
DateRacePerf.Rk
2025
25.04 167km JPN10th Ultra-Trail Mt. Fuji 40:28:48 h807
2024
12.10 100km KOR11th TransJeju by UTMB 100 21:17:42 h361
09.06 100km JPN12th Hida Takayama 100 km Ultramarathon 12:10:40 h560
2023
06.10 169km JPN3rd Lake Biwa 100 2d 00:48:05 h202
01.09 170km FRA20ème Ultra Trail Tour du Mont Blanc 43:32:33 h1269
17.06 105km JPN1st Okumusashi Long Trail Race 105K 30:36:12 h106
2022
17.09 162.6km JPN14th Shinetsu Five Mountains Trail 100 mile 32:01:50 h153
11.06 100.8km JPN2nd Okushinano 100 16:05:40 h137
21.05 109.2km JPN7th Trainic World 100 km in Sai-No-Kuni 26:38:55 h154
17.04 100km JPN13th 100 km Ultra Maranic Osaka 11:54:18 h48
2021
14.03 62km JPN4th Mizukami Mountain Party 11:15:52 h111
2020
18.10 54km JPN7th Shigakogen Extreme Trail 10:33:41 h220
2019
14.12 100km HKG7th The North Face 100 Hong Kong 23:59:01 h144
20.10 57.8km JPN3rd Kohechi Trail Journey 9:22:17 h27
12.10 110km KOR7th Transjeju Int. Trail Run 100 20:20:40 h40
25.05 50km JPN5th Mt. Hiei Int. 50 km Trail Run 10:14:55 h216
19.05 100km JPN25th Yatsugatake Nobeyama 100 km 12:39:05 h628
07.04 70km JPN5th Okumikawa Power Trail 13:12:24 h487
2018
02.12 50km JPN6th Kumano Old Trails 9:33:58 h154
17.11 106km JPN4th FunTrails100K Round 29:37:38 h366
22.09 129km JPN5th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup 31:52:47 h317
22.04 70km JPN4th Okumikawa Power Trail 12:41:20 h212
2017
10.09 100km JPN5th 100 km Ultramarathon Hakusan-Shirakawago 13:01:02 h286
2016
19.11 100km TPE1st Formosa Trail 100km 28:12:38 h54
16.07 100km JPN9th OSJ Ontake 100km Ultra Trail 14:11:01 h290
26.06 72.7km JPN3. Spatrail - Shima to Kusatsu 12:23:43 h512
2015
18.10 73km JPN6th OSJ Hyonosen Mountains Trail Race 14:19:44 h419
21.06 50km JPN10. Okinoshima 50km Ultra Marathon 5:10:35 h65
17.05 100km JPN21st Yatsugatake Nobeyama 100 km 13:38:58 h1075
2014
14.09 100km JPN14th Tango 100 km Ultramarathon 12:50:04 h692
2013
13.07 100km JPN6th OSJ Ontake 100km Ultra Trail 18:18:47 h681
21.04 100km JPN5th 100 km Ultra Maranic Osaka 12:56:10 h207