Manabu (柴山学) Shibayama
Born : 1974 Cat. M50 Ultrarunner since 2002 JPN
23
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
39
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
18,4%
Rank quotient ?This runner's calculation uses 23 eligible race(s): Σ(rank − 1) = 4 106; Σ finishers = 22 257. 4 106 / 22 257 × 100 = 18.45%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed23
Km — ultra races2 106 km
> 100 km5
> 160 km1
Longest race170,0 km

Km per year (ultra races)

166
2 races
2022
2023
200
2 races
2024
2025
2026

Race types (share of distance)

Road26,1%
Trail73,9%

Records

HISTORY

23 race(s)
DateRacePerf.Rk
2024
16.11 100km JPN10th FunTrails100K Round 21:08:42 h39
13.10 100km JPN15th Echigo Kubikino 100km Ultramarathon 10:24:12 h91
2022
09.10 100km JPN14th Echigo Kubikino 100km Ultramarathon 9:17:21 h33
25.09 66km JPN4th Aga Ultra Marathon - 66km 5:33:50 h6
2021
03.10 84km JPN8th Naeba-Sanroku Geopark Tsunan Ultramarathon 84K 8:23:43 h7
2017
23.09 129km JPN4th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup 25:34:24 h99
2016
09.10 100km JPN11th Echigo Kubikino 100km Ultramarathon 9:31:33 h68
26.08 170km FRA14ème Ultra Trail Tour du Mont Blanc 40:37:36 h633
2015
31.10 71.5km JPN23rd Hasetsune Cup - Japan Mountain Endurance Race 11:01:09 h223
19.07 118km JPN2nd SkyView Ultra-Trail - Yamada Noboru Memorial Cup 22:28:37 h28
2014
20.09 120km JPN1st SkyView Ultra-Trail - Yamada Noboru Memorial Cup 24:14:56 h111
2013
13.10 71.5km JPN21st Hasetsune Cup - Japan Mountain Endurance Race 13:29:14 h468
15.09 110km JPN5th Shinetsu Five Mountains Trail 110km 16:35:10 h99
13.07 65km JPN4th Nozawa Onsen 4100D Mountain Trail 10:04:29 h83
2012
06.10 100km JPN9th Echigo Kubikino 100km Ultramarathon 12:46:29 h669
2010
10.10 71.5km JPN18th Hasetsune Cup - Japan Mountain Endurance Race 13:53:02 h344
2009
11.10 71.5km JPN17th Hasetsune Cup - Japan Mountain Endurance Race 12:32:04 h290
21.09 100km JPN1st Shinetsu Five Mountains Trail 100km 17:15:16 h166
2008
12.10 71.5km JPN16th Hasetsune Cup - Japan Mountain Endurance Race 10:54:00 h115
2006
08.10 71.5km JPN14th Hasetsune Cup - Japan Mountain Endurance Race 13:15:29 h220
2005
09.10 71.5km JPN13th Hasetsune Cup - Japan Mountain Endurance Race 12:50:10 h121
2003
25.10 71.5km JPN11th Hasetsune Cup - Japan Mountain Endurance Race 12:04:03 h69
2002
12.10 71.5km JPN10th Hasetsune Cup - Japan Mountain Endurance Race 14:49:52 h147