Takashi (赤羽隆史) Akahane
ID 116175
Born : 1947 Cat. M75 Ultrarunner since 2007 JPN
35
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
1
Countries visited ?JPNJapan
55,3%
Rank quotient ?This runner's calculation uses 35 eligible race(s): Σ(rank − 1) = 8 353; Σ finishers = 15 092. 8 353 / 15 092 × 100 = 55.35%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed35
Km — ultra races3 061 km
> 100 km1
Longest race102,1 km
4th Jingu Gaien Ultramarathon 12 Hour — 12/9/2009

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road73,9%
Trail26,1%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0

Records

100 km10h44'5712 h102,10 km

HISTORY

35 race(s)
DateRacePerf.Rk
2019
25.05 100km JPN3rd Tsukuba Rinrin Road 100km 19:31:00 h60
2018
26.05 100km JPN2nd Tsukuba Rinrin Road 100km 19:28:00 h57
2015
19.12 12h JPN10th Jingu Gaien Ultramarathon 12 Hour 79.473 km8
17.05 100km JPN21st Yatsugatake Nobeyama 100 km 13:47:57 h1232
2014
08.11 12h JPN9th Jingu Gaien Ultramarathon 12 Hour 87.421 km6
18.05 100km JPN20th Yatsugatake Nobeyama 100 km 13:56:18 h1217
06.04 100km JPN65. Tsurunuma 100 km 13:26:08 h66
2013
09.11 12h JPN8th Jingu Gaien Ultramarathon 12 Hour 86.096 km9
08.09 52km JPN64. Tsurunuma 52 km 7:28:06 h155
01.06 100km JPN1st Tokyo Shibamata 100 km 12:38:57 h649
19.05 100km JPN19th Yatsugatake Nobeyama 100 km 13:34:08 h845
07.04 100km JPN63. Tsurunuma 100 km 13:19:04 h43
2012
06.10 100km JPN9th Echigo Kubikino 100km Ultramarathon 12:42:51 h628
02.09 52km JPN62. Tsurunuma 52 km 6:47:53 h100
20.05 100km JPN18th Yatsugatake Nobeyama 100 km 13:28:20 h687
22.04 100km JPN22nd Fuji 5 Lakes 100 km Challenge 12:09:05 h422
01.04 100km JPN61. Tsurunuma 100 km 11:50:15 h42
2011
15.10 12h JPN6th Jingu Gaien Ultramarathon 12 Hour 84.864 km9
16.07 100km JPN60. Tsurunuma 100 km 15:41:34 h43
30.04 100km JPN21st Fuji 5 Lakes 100 km Challenge 12:04:53 h337
2010
29.08 52km JPN58. Tsurunuma 52 km 6:38:56 h64
04.07 8h JPN16th 8-Hour Endurance Race Tokorozawa 55.182 km122
16.05 100km JPN16th Yatsugatake Nobeyama 100 km 13:03:54 h576
25.04 100km JPN20th Fuji 5 Lakes 100 km Challenge 11:25:55 h196
04.04 100km JPN57. Tsurunuma 100 km 10:44:57 h29
2009
12.09 12h JPN4th Jingu Gaien Ultramarathon 12 Hour 102.102 km3 🥉
30.08 52km JPN56. Tsurunuma 52 km 5:09:38 h43
05.07 8h JPN15th 8-Hour Endurance Race Tokorozawa 68.166 km61
17.05 100km JPN15th Yatsugatake Nobeyama 100 km 12:47:51 h330
26.04 100km JPN19th Fuji 5 Lakes 100 km Challenge 10:53:44 h107
05.04 100km JPN55. Tsurunuma 100 km 11:01:02 h20
2008
31.08 52km JPN54. Tsurunuma 52 km 6:24:09 h73
05.07 12h JPN3rd Jingu Gaien Ultramarathon 12 Hour 85.871 km5
06.04 100km JPN53. Tsurunuma 100 km 12:18:55 h43
2007
26.08 52km JPN52. Tsurunuma 52 km 7:08:11 h101