Tetsuya (赤道鉄哉) Akamichi
ID 71866
Born : 1971 Cat. M55 Ultrarunner since 1999 JPN
33
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
2
Countries visited ?GREGreeceJPNJapan
8,0%
Rank quotient ?This runner's calculation uses 33 eligible race(s): Σ(rank − 1) = 1 037; Σ finishers = 12 882. 1 037 / 12 882 × 100 = 8.05%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed33
Km — ultra races3 621 km
> 100 km3
> 160 km3
> 200 km3
Longest race250,0 km
19. Yamaguchi 100 Hagi-O-Kan Maranic 250 km — 2/5/2007

Km per year (ultra races)

2022
2023
2024
2025
200
2 races
2026

Race types (share of distance)

Road72,6%
Trail27,4%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 34
🏅 Top 3 M4
Longest winning streak0
Current streak0

Records

100 km7h47'05

HISTORY

33 race(s)
DateRacePerf.Rk
2026
31.05 100km JPN1st Nara Ultra Marathon 11:48:36 h531
24.01 100km JPN36th Miyako 100 km Ultramarathon 10:02:45 h26
2020
19.01 100km JPN30th Miyako 100 km Ultramarathon 10:11:50 h45
2019
20.01 100km JPN29th Miyako 100 km Ultramarathon 9:25:30 h12
2018
21.01 100km JPN28th Miyako 100 km Ultramarathon 8:59:20 h10
2017
15.01 100km JPN27th Miyako 100 km Ultramarathon 8:26:29 h8
2016
11.09 100km JPN1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon 9:24:09 h5
17.01 100km JPN26th Miyako 100 km Ultramarathon 9:46:52 h24
2015
11.01 100km JPN25th Miyako 100 km Ultramarathon 8:21:59 h8
2014
19.10 100km JPN20th River Shimanto 100km 9:29:12 h73
2013
20.10 100km JPN19th River Shimanto 100km 8:16:03 h16
15.09 100km JPN13th Tango 100 km Ultramarathon 8:42:00 h21
13.01 100km JPN23rd Miyako 100 km Ultramarathon 8:30:05 h5
2012
14.01 100km JPN22nd Miyako 100 km Ultramarathon 8:07:45 h3 🥉
2011
16.01 100km JPN21st Miyako 100 km Ultramarathon 9:06:54 h6
2010
27.06 100km JPN10th Nichinan Orochi 100 km Marathon 8:54:37 h13
17.01 100km JPN20th Miyako 100 km Ultramarathon 7:55:06 h4
2009
28.06 100km JPN9th Nichinan Orochi 100 km Marathon 8:02:07 h6
11.01 100km JPN19th Miyako 100 km Ultramarathon 7:47:05 h3 🥉
2008
22.06 100km JPN8th Nichinan Orochi 100 km Marathon 8:08:16 h5
2007
24.06 100km JPN7th Nichinan Orochi 100 km Marathon 8:50:20 h22
02.05 250km JPN19. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 37:32:25 h9
14.01 100km JPN17th Miyako 100 km Ultramarathon 8:09:29 h2 🥈
2006
25.06 100km JPN6th Nichinan Orochi 100 km Marathon 8:19:07 h8
04.05 70km JPN18. Yamaguchi 100 Hagi-O-Kan Maranic 70 km 8:24:27 h17
2005
04.05 70km JPN17. Yamaguchi 100 Hagi-O-Kan Maranic 70 km 8:49:30 h19
16.01 100km JPN15th Miyako 100 km Ultramarathon 8:13:52 h3 🥉
2004
04.05 70km JPN16. Yamaguchi 100 Hagi-O-Kan Maranic 70 km 9:06:03 h37
2003
19.10 100km JPN9th River Shimanto 100km 8:40:02 h28
04.05 70km JPN15. Yamaguchi 100 Hagi-O-Kan Maranic 70 km 8:33:48 h25
2001
16.09 100km JPN1st Tango 100 km Ultramarathon 9:03:36 h16
2000
29.09 245.3km GRE18. Spartathlon 32:38:40 h24
1999
24.09 245.3km GRE17. Spartathlon 35:01:40 h36