Hideyuki (小原英行) Obara
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Born : 1978
Cat. M45 Ultrarunner since 2006
19
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
37
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 ?Japan
Japan8,1%
Rank quotient ?This runner's calculation uses 19 eligible race(s): Σ(rank − 1) = 1 140; Σ finishers = 14 014. 1 140 / 14 014 × 100 = 8.13%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed19
Km — ultra races1 803 km
> 100 km1
> 160 km1
> 24h2
Longest race179,3 km
3rd Jingu Gaien 24 Hour Challenge — 5/7/2008
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
19 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 5/7/2008 | 3rd Jingu Gaien 24 Hour Challenge | 179,32 | ×4 |
| ✓ 2 | 22/9/2013 | 23. Akita Nairiku 100km Marathon | 100,00 | ×2 |
| ✓ 3 | 23/9/2012 | 22. Akita Nairiku 100km Marathon | 100,00 | ×2 |
| ✓ 4 | 25/9/2011 | 21. Akita Nairiku 100km Marathon | 100,00 | ×2 |
| ✓ 5 | 30/4/2011 | 21st Fuji 5 Lakes 100 km Challenge | 100,00 | ×2 |
| ✓ 6 | 26/9/2010 | 20. Akita Nairiku 100km Marathon | 100,00 | ×2 |
| ✓ 7 | 27/9/2009 | 19. Akita Nairiku 100km Marathon | 100,00 | ×2 |
| ✓ 8 | 28/9/2008 | 18. Akita Nairiku 100km Marathon | 100,00 | ×2 |
| ✓ 9 | 22/9/2007 | 17. Akita Nairiku 100km Marathon | 100,00 | ×2 |
| ✓ 10 | 16/9/2007 | 7th Tango 100 km Ultramarathon | 100,00 | ×2 |
| ✓ 11 | 24/6/2007 | 22. Lake Saroma 100 km Ultramarathon | 100,00 | ×2 |
| ✓ 12 | 17/9/2006 | 6th Tango 100 km Ultramarathon | 100,00 | ×2 |
| ✓ 13 | 5/8/2012 | 19. Ultramarathon Okumusashi | 77,00 | ×2 |
| ✓ 14 | 7/8/2011 | 18. Ultramarathon Okumusashi | 77,00 | ×2 |
| ✓ 15 | 2/8/2009 | 16. Ultramarathon Okumusashi | 75,00 | ×2 |
| ✓ 16 | 3/8/2008 | 15. Ultramarathon Okumusashi | 75,00 | ×2 |
| ✓ 17 | 5/8/2007 | 14. Ultramarathon Okumusashi | 75,00 | ×2 |
| ✓ 18 | 13/8/2006 | 13. Ultramarathon Okumusashi | 75,00 | ×2 |
| ✓ 19 | 20/8/2011 | 1st Toyota Stadium 24 Hour Race | 69,33 | ×1 |