Tadashi (塩原正) Shiobara
ID 5253
Born : 1952 Cat. M70 Ultrarunner since 1994 JPN
27
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
62
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
3
Countries visited ?GREGreeceJPNJapanTPETaiwan
25,2%
Rank quotient ?This runner's calculation uses 27 eligible race(s): Σ(rank − 1) = 925; Σ finishers = 3 677. 925 / 3 677 × 100 = 25.16%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed27
Km — ultra races4 855 km
> 100 km19
> 160 km16
> 200 km11
> 24h3
Longest race250,0 km
24. Yamaguchi 100 Hagi-O-Kan Maranic 250 km — 2/5/2012

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road62,1%
Trail37,9%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 35
🏅 Top 3 M5
Longest winning streak1
Current streak1

Records

100 km8h11'4424 h206,63 km

HISTORY

27 race(s) · 1 split(s) nested
DateRacePerf.Rk
2018
01.12 200km JPN3rd Santo Ultra Maranic - Santo Course 25:31:00 h1 🏆
02.11 105km JPNTachibana Bay Coast 105 Ultra Marathon 12:18:23 h10
2017
02.12 200km JPN2nd Santo Ultra Maranic - Santo Course 28:06:00 h2 🥈
24.09 120km JPN20th Muraoka 120 km Ultra Marathon 13:44:37 h127
2016
03.12 200km JPN1st Santo Ultra Maranic (Three City Miyako Course) 30:49:00 h6
2015
27.09 100km JPN18th Muraoka 100 km Ultra Marathon 12:20:37 h152
2012
02.05 250km JPN24. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 35:50:12 h10
2011
18.09 100km JPN11th Tango 100 km Ultramarathon 12:23:11 h239
2010
23.05 100km JPN2nd 100 km Ultra Maranic Osaka 9:20:00 h14
2009
27.09 100km JPN12th Muraoka 100 km Ultra Marathon 9:40:53 h6
2006
22.04 250km JPN13. Sakura Michi Kokusai Nature Run 28:50:00 h10
2005
25.09 100km JPN8th Muraoka 100 km Ultra Marathon 13:27:06 h106
11.06 24h JPN3rd Akiruno 24 Hour Race Japan Cup 199.730 km7
02.05 250km JPN17. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 31:52:18 h3 🥉
03.04 24h TPE6th Soochow/Taipei 24h ultramarathon 142.800 km28
2004
24.09 100km JPN7th Muraoka 100 km Ultra Marathon 9:03:12 h2 🥈
24.04 250km JPN11. Sakura Michi Kokusai Nature Run 27:21:00 h2 🥈
09.04 190km JPN4th Taiyou No Michi 190km 36:59:00 h11
2003
05.07 24h JPN1st Akiruno 24 Hour Race Japan Cup 206.627 km4
2001
24.06 100km JPN1st Nichinan Orochi 100 km Marathon 9:18:21 h14
2000
29.09 245.3km GRE18. Spartathlon 33:37:24 h40
02.05 250km JPN12. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 38:36:01 h7
1999
17.04 250km JPN6. Sakura Michi Kokusai Nature Run 33:24:00 h24
1998
25.09 245.3km GRE16. Spartathlon 30:58:18 h18
18.04 250km JPN5. Sakura Michi Kokusai Nature Run 29:51:00 h8
1997
19.04 250km JPN4. Sakura Michi Kokusai Nature Run 29:10:00 h9
1994
26.06 100km JPN9. Lake Saroma 100 km Ultramarathon 8:11:44 h92