Taketo (五十嵐丈人) Igarashi
Born : 1964 Cat. M60 Ultrarunner since 2004 JPN
52
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
57
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
37,6%
Rank quotient ?This runner's calculation uses 55 eligible race(s): Σ(rank − 1) = 17 508; Σ finishers = 46 546. 17 508 / 46 546 × 100 = 37.61%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed55
Km — ultra races5 414 km
> 100 km13
> 160 km2
Longest race160,9 km

Km per year (ultra races)

451
4 races
2022
201
2 races
2023
461
4 races
2024
461
4 races
2025
154
2 races
2026

Race types (share of distance)

Road59,1%
Trail39,0%
Ult.Walk1,9%

HISTORY

55 race(s)
DateRacePerf.Rk
2026
18.04 104km JPN3rd Osaka Ultra Walking 19:50:14 h19
14.02 50km JPN1st One-day 50km Ultra tour in the Chubu region 7:16:14 h11
2025
22.08 101km JPN12th World Cultural Heritage "Fuji" Foot Race 14:30:38 h89
08.06 100km JPN13th Hida Takayama 100 km Ultramarathon 12:12:26 h564
18.05 100km JPN31th Yatsugatake Nobeyama 100 km 12:52:50 h524
12.04 160km JPN4th Yagurazawa Round Trip Pre-Tournament 28:56:48 h36
2024
23.08 101km JPN11th World Cultural Heritage "Fuji" Foot Race 15:05:03 h98
09.06 100km JPN12th Hida Takayama 100 km Ultramarathon 13:45:59 h1355
19.05 100km JPN30th Yatsugatake Nobeyama 100 km 13:54:19 h1036
06.04 160km JPN3rd Yagurazawa Round Trip Pre-Tournament 30:53:35 h74
2023
18.08 101km JPN10th World Cultural Heritage "Fuji" Foot Race 14:34:24 h59
21.05 100km JPN29th Yatsugatake Nobeyama 100 km 13:39:53 h563
2022
15.10 150km JPN1st Yagurazawa Round Trip Pre-Tournament 27:02:13 h30
20.08 101km JPN9th World Cultural Heritage "Fuji" Foot Race 14:55:18 h66
12.06 100km JPN10th Hida Takayama 100 km Ultramarathon 11:31:44 h279
22.05 100km JPN28th Yatsugatake Nobeyama 100 km 12:08:37 h273
2020
22.08 101km JPN8th World Cultural Heritage "Fuji" Foot Race 13:22:23 h21
2019
17.08 101km JPN7th World Cultural Heritage "Fuji" Foot Race 14:53:50 h80
09.06 100km JPN8th Hida Takayama 100 km Ultramarathon 12:35:15 h943
19.05 100km JPN25th Yatsugatake Nobeyama 100 km 12:59:49 h815
21.04 71km JPN29th Fuji 5 Lakes 71 km Challenge 7:53:15 h90
2018
03.11 52km JPN1st Otaki Loop Trail 6:02:50 h16
10.06 100km JPN7th Hida Takayama 100 km Ultramarathon 12:10:09 h535
20.05 100km JPN24th Yatsugatake Nobeyama 100 km 12:52:16 h686
22.04 100km JPN28th Fuji 5 Lakes 100 km Challenge 11:50:13 h377
2017
15.07 100mi JPN10th OSJ Ontake 100 Mile Ultra Trail 23:23:10 h47
11.06 100km JPN6th Hida Takayama 100 km Ultramarathon 12:04:30 h574
21.05 100km JPN23rd Yatsugatake Nobeyama 100 km 12:24:30 h355
23.04 71km JPN27th Fuji 5 Lakes 71 km Challenge 7:00:35 h52
2016
12.06 100km JPN5th Hida Takayama 100 km Ultramarathon 12:39:13 h631
2015
17.05 100km JPN21st Yatsugatake Nobeyama 100 km 12:21:40 h495
19.04 71km JPN25th Fuji 5 Lakes 71 km Challenge 7:15:18 h48
2014
12.10 71.5km JPN22nd Hasetsune Cup - Japan Mountain Endurance Race 15:39:36 h953
19.07 100km JPN7th OSJ Ontake 100km Ultra Trail 14:58:48 h325
08.06 100km JPN3rd Hida Takayama 100 km Ultramarathon 11:27:34 h249
18.05 100km JPN20th Yatsugatake Nobeyama 100 km 11:25:07 h207
20.04 72km JPN24th Fuji 5 Lakes 72 km Challenge 7:18:26 h42
2013
19.05 100km JPN19th Yatsugatake Nobeyama 100 km 12:55:45 h575
2012
15.07 100mi JPN5th OSJ Ontake 100 Mile Ultra Trail 23:37:57 h36
10.06 100km JPN1st Hida Takayama 100 km Ultramarathon 10:44:25 h75
20.05 100km JPN18th Yatsugatake Nobeyama 100 km 11:17:41 h164
22.04 112km JPN22nd Fuji 5 Lakes 112 km Challenge 12:34:40 h153
2011
02.10 50km JPN5th Madarao Forest Trails 50km 5:52:25 h51
07.08 77km JPN18. Ultramarathon Okumusashi 8:09:00 h183
2010
10.10 71.5km JPN18th Hasetsune Cup - Japan Mountain Endurance Race 19:02:57 h1036
2009
11.10 71.5km JPN17th Hasetsune Cup - Japan Mountain Endurance Race 13:42:59 h434
19.07 100km JPN2nd OSJ Ontake 100km Ultra Trail 13:52:36 h97
17.05 100km JPN15th Yatsugatake Nobeyama 100 km 12:07:56 h211
2008
12.10 71.5km JPN16th Hasetsune Cup - Japan Mountain Endurance Race 14:27:50 h545
20.07 100km JPN1st OSJ Ontake 100km Ultra Trail 13:55:32 h70
18.05 100km JPN14th Yatsugatake Nobeyama 100 km 12:14:36 h229
2007
20.05 100km JPN13th Yatsugatake Nobeyama 100 km 11:47:41 h186
2006
21.05 100km JPN12th Yatsugatake Nobeyama 100 km 13:08:02 h344
2005
22.05 100km JPN11th Yatsugatake Nobeyama 100 km 13:11:04 h298
2004
16.05 100km JPN10th Yatsugatake Nobeyama 100 km 12:49:54 h259