Takashi (柏原崇) Kashihara
Born : 1978 Cat. M45 Ultrarunner since 2016 JPN
31
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
2
Countries visited ?JPNJapanTHAThailand
29,1%
Rank quotient ?This runner's calculation uses 31 eligible race(s): Σ(rank − 1) = 3 948; Σ finishers = 13 562. 3 948 / 13 562 × 100 = 29.11%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed31
Km — ultra races2 893 km
> 100 km11
> 160 km3
Longest race175,0 km

Km per year (ultra races)

416
3 races
2022
493
4 races
2023
180
2 races
2024
520
5 races
2025
180
2 races
2026

Race types (share of distance)

Road19,6%
Trail80,4%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M2
Longest winning streak1
Current streak0

HISTORY

31 race(s)
DateRacePerf.Rk
2026
31.05 100km JPN1st Nara Ultra Marathon 9:19:34 h72
09.05 50mi JPN12th Mt. Hiei Int. 50 Mile Trail Run 11:07:45 h31
2025
28.09 100km JPN28th Muraoka 100 km Ultra Marathon 9:53:22 h16
09.08 100km THA9th CM6 Run - CM5 100 km 17:55:21 h11
21.06 105km JPN1st Kaga Spa by UTMB - Kaga Spa Trail Endurance100 23:36:41 h234
10.05 115.1km JPN3rd Aso Volcano Trail 16:04:29 h27
22.03 100km JPN32th Mt. Rocco Cannonball Run - 100 km Buddy 18:14:00 h1 🏆
2024
06.07 100km JPN2nd Shiga Kogen 100 19:03:57 h78
11.05 50mi JPN10th Mt. Hiei Int. 50 Mile Trail Run 11:23:03 h46
2023
08.12 175km THA4th Doi Inthanon Thailand by UTMB - TRANS-INT 160 47:45:00 h107
16.09 162.6km JPN15th Shinetsu Five Mountains Trail 100 mile 32:33:21 h217
05.08 55km THA1st AKHA Trail 12:33:02 h3 🥉
10.06 100.8km JPN3rd Okushinano 100 15:34:01 h119
2022
05.08 148km THA6th CM6 Run - CM6 150 km 38:26:03 h13
11.06 100.8km JPN2nd Okushinano 100 16:58:31 h205
22.04 167km JPN7th Ultra-Trail Mt. Fuji 35:50:34 h639
2019
15.09 100km JPN19th Tango 100 km Ultramarathon 12:04:34 h285
30.06 60km JPN6th Fairy Trail - Super Long 11:04:39 h70
25.05 50km JPN5th Mt. Hiei Int. 50 km Trail Run 8:45:35 h68
2018
03.11 48km JPN2nd Ninja Trail Run 6:32:36 h42
20.10 112km JPN19th Mt. Rocco Cannonball Run - 112 km Power 19:14:00 h40
16.09 100km JPN18th Tango 100 km Ultramarathon 12:37:25 h433
04.08 130km THA2nd CM6 Run - CM6 130 km 26:01:03 h8
10.06 50km JPN11th Skyline Trail Sugadaira 7:35:47 h56
12.05 108.7km JPN2nd Aso Round Trail 23:19:21 h146
2017
15.10 57.8km JPN1st Kohechi Trail Journey 10:27:34 h52
23.07 67.5km JPN5th Kirishima Ebino-kougen Extreme Trail 11:47:01 h162
10.06 45km JPN10th Skyline Trail Sugadaira 7:03:19 h140
13.05 50km JPN3rd Mt. Hiei Int. 50 km Trail Run 8:19:30 h134
26.03 56km JPN16th Mt. Rocco Cannonball Run - 56 km Speed 9:01:50 h340
2016
24.07 67.5km JPN4th Kirishima Ebino-kougen Extreme Trail 11:59:06 h184