Tsuyoshi (荻原剛) Ogihara
Born : 1974 Cat. M50 Ultrarunner since 2001 JPN
43
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
55
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
29,0%
Rank quotient ?This runner's calculation uses 43 eligible race(s): Σ(rank − 1) = 9 801; Σ finishers = 33 799. 9 801 / 33 799 × 100 = 29.00%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed43
Km — ultra races4 448 km
> 100 km13
> 160 km8
Longest race169,0 km
3rd Lake Biwa 100 — 6/10/2023

Km per year (ultra races)

163
1 race
2022
436
3 races
2023
481
4 races
2024
484
4 races
2025
267
2 races
2026

Race types (share of distance)

Road27,0%
Trail73,0%

HISTORY

43 race(s)
DateRacePerf.Rk
2026
24.04 167km JPN11th Ultra-Trail Mt. Fuji 33:42:53 h282
28.02 100km JPN1st Mino Province Yamashiro 100km 22:39:25 h27
2025
18.10 56km JPN33th Mt. Rocco Cannonball Run - 56 km Speed 7:57:15 h29
19.07 100mi JPN17th OSJ Ontake 100 Mile Ultra Trail 22:18:56 h72
25.04 167km JPN10th Ultra-Trail Mt. Fuji 33:32:50 h283
22.03 100km JPN32th Mt. Rocco Cannonball Run - 100 km Power 16:22:00 h10
2024
19.10 112km JPN31th Mt. Rocco Cannonball Run - 112 km Power 17:11:22 h7
29.06 90km JPN3rd Central Alps Skyline Japan 15:25:40 h25
26.04 167km JPN9th Ultra-Trail Mt. Fuji 32:37:38 h188
30.03 112km JPN30th Mt. Rocco Cannonball Run - 112 km Power 15:40:00 h8
2023
06.10 169km JPN3rd Lake Biwa 100 45:15:12 h139
21.04 167km JPN8th Ultra-Trail Mt. Fuji 33:16:51 h382
04.03 100km JPN1st Minonokuni Yamajiro Trail 100 25:08:00 h20
2022
17.09 162.6km JPN14th Shinetsu Five Mountains Trail 100 mile 31:48:01 h137
2021
12.12 69.1km JPN8th Izu Trail Journey 9:36:26 h252
28.08 75km JPN1st Okushinano 100 - 75 km 11:57:00 h116
2020
13.12 66km JPN7th Izu Trail Journey 8:32:58 h129
2019
08.12 71.7km JPN6th Izu Trail Journey 8:29:38 h106
11.05 121km JPN3rd Aso Round Trail 22:20:40 h37
2018
09.12 71.7km JPN5th Izu Trail Journey 9:34:06 h137
20.05 55.7km JPN5th Kobo Trail 2018 9:57:36 h13
22.04 70km JPN4th Okumikawa Power Trail 10:46:57 h56
2017
10.12 71.7km JPN4th Izu Trail Journey 10:45:04 h278
16.09 102km JPN9th Shinetsu Five Mountains Trail 100 mile 16:44:29 h112
01.07 80km JPN7th Utsukushigahara 80 km Trail Run 10:47:12 h181
23.04 70km JPN3rd Okumikawa Power Trail 10:49:33 h111
2016
16.10 100km JPN22nd River Shimanto 100km 10:15:15 h177
16.07 100mi JPN9th OSJ Ontake 100 Mile Ultra Trail 23:13:11 h52
24.04 70km JPN2nd Okumikawa Power Trail 10:59:16 h177
2015
13.09 53km JPN5th Hakuba Int. Trail Run 6:37:32 h68
18.07 100km JPN8th OSJ Ontake 100km Ultra Trail 13:34:47 h148
2014
19.10 100km JPN20th River Shimanto 100km 11:30:47 h339
14.09 110km JPN6th Shinetsu Five Mountains Trail 110km 18:09:22 h159
29.06 100km JPN29. Lake Saroma 100 km Ultramarathon 10:49:56 h419
2013
30.06 100km road race JPN28. Lake Saroma 100 km Ultramarathon 12:10:47 h1240
2011
16.10 100km JPN17th River Shimanto 100km 12:16:56 h460
2009
18.10 100km JPN15th River Shimanto 100km 11:50:52 h423
2008
19.10 100km JPN14th River Shimanto 100km 11:56:40 h355
2006
15.10 100km JPN12th River Shimanto 100km 12:18:40 h464
2005
16.10 100km JPN11th River Shimanto 100km 11:38:10 h374
2004
17.10 100km JPN10th River Shimanto 100km 12:31:41 h610
2003
19.10 100km JPN9th River Shimanto 100km 12:37:18 h670
2001
21.10 100km JPN8th River Shimanto 100km 12:51:25 h572