Michihito (市原通人) Ichihara
Born : 1971 Cat. M55 Ultrarunner since 2012 JPN
27
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
45
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 ?FRAFranceJPNJapan
45,2%
Rank quotient ?This runner's calculation uses 27 eligible race(s): Σ(rank − 1) = 7 748; Σ finishers = 17 138. 7 748 / 17 138 × 100 = 45.21%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed27
Km — ultra races2 571 km
> 100 km14
> 160 km1
Longest race168,0 km

Km per year (ultra races)

221
2 races
2022
110
1 race
2023
221
3 races
2024
112
1 race
2025
114
1 race
2026

Race types (share of distance)

Road10,4%
Trail89,6%

HISTORY

27 race(s)
DateRacePerf.Rk
2026
09.05 114km JPN4th Aso Volcano Trail 26:45:37 h373
2025
18.10 112km JPN33th Mt. Rocco Cannonball Run - 112 km Power 18:00:02 h9
2024
20.10 56km JPN31th Mt. Rocco Cannonball Run - 56 km Speed 8:30:23 h66
15.09 109km JPN16th Shinetsu Five Mountains Trail 110km 17:30:02 h281
31.03 56km JPN30th Mt. Rocco Cannonball Run - 56 km Speed 8:27:08 h59
2023
17.09 110km JPN15th Shinetsu Five Mountains Trail 110km 20:51:38 h145
2022
18.09 109km JPN14th Shinetsu Five Mountains Trail 110km 19:30:26 h92
19.03 112km JPN26th Mt. Rocco Cannonball Run - 112 km Power 17:53:49 h31
2020
17.10 112km JPN23th Mt. Rocco Cannonball Run - 112 km Power 20:30:33 h63
2019
20.10 56km JPN21th Mt. Rocco Cannonball Run - 56 km Speed 8:33:37 h63
15.09 110km JPN11th Shinetsu Five Mountains Trail 110km 19:23:48 h121
2018
16.09 110km JPN10th Shinetsu Five Mountains Trail 110km 20:38:05 h197
2017
20.05 106km JPN2nd Trainic World 100 km in Sai-No-Kuni 29:44:50 h194
2016
18.09 110km JPN8th Shinetsu Five Mountains Trail 110km 18:03:56 h236
16.07 100km JPN9th OSJ Ontake 100km Ultra Trail 15:44:21 h500
28.05 50km JPN8th OSJ Okukuji Trail 50k 13:05:12 h248
2015
22.09 110km JPN7th Shinetsu Five Mountains Trail 110km 16:53:38 h156
15.03 72km JPN2nd Izu Trail Journey 11:12:51 h349
2014
29.08 168km FRA12ème Ultra Trail Tour du Mont Blanc 42:26:35 h953
05.07 80km JPN4th Utsukushigahara 80 km Trail Run 13:53:10 h135
2013
13.10 71.5km JPN21st Hasetsune Cup - Japan Mountain Endurance Race 14:03:44 h565
15.09 110km JPN5th Shinetsu Five Mountains Trail 110km 19:12:03 h240
13.07 100km JPN6th OSJ Ontake 100km Ultra Trail 16:14:46 h438
01.06 100km JPN1st Tokyo Shibamata 100 km 12:57:58 h766
26.04 84km JPN2nd Shizuoka to Yamanashi 16:39:47 h223
10.03 72km JPN1st Izu Trail Journey 11:39:46 h552
2012
07.10 71.5km JPN20th Hasetsune Cup - Japan Mountain Endurance Race 14:53:29 h720