Hideki (楢林秀記) Narahayashi
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Born : 1969
Cat. M55 Ultrarunner since 2008
16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
45
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
Japan38,2%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 1 459; Σ finishers = 3 824. 1 459 / 3 824 × 100 = 38.15%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races2 363 km
> 100 km8
> 160 km5
> 200 km5
Longest race250,0 km
29. Yamaguchi 100 Hagi-O-Kan Maranic 250 km — 2/5/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
16 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 2/5/2017 | 29. Yamaguchi 100 Hagi-O-Kan Maranic 250 km | 250,00 | ×5 |
| ✓ 2 | 2/5/2016 | 28. Yamaguchi 100 Hagi-O-Kan Maranic 250 km | 250,00 | ×5 |
| ✓ 3 | 2/5/2015 | 27. Yamaguchi 100 Hagi-O-Kan Maranic 250 km | 250,00 | ×5 |
| ✓ 4 | 2/5/2014 | 26. Yamaguchi 100 Hagi-O-Kan Maranic 250 km | 250,00 | ×5 |
| ✓ 5 | 2/5/2013 | 25. Yamaguchi 100 Hagi-O-Kan Maranic 250 km | 250,00 | ×5 |
| ✓ 6 | 3/5/2012 | 24. Yamaguchi 100 Hagi-O-Kan Maranic 140 km | 140,00 | ×3 |
| ✓ 7 | 3/5/2011 | 23. Yamaguchi 100 Hagi-O-Kan Maranic 140 km | 140,00 | ×3 |
| ✓ 8 | 3/5/2010 | 22. Yamaguchi 100 Hagi-O-Kan Maranic 140 km | 140,00 | ×3 |
| ✓ 9 | 17/7/2022 | 2nd Yamaguchi Hagi Return | 100,00 | ×2 |
| ✓ 10 | 22/5/2022 | 1st Suo-Oshima Ultra Marathon - 100 km | 100,00 | ×2 |
| ✓ 11 | 1/10/2017 | 1st Yasaka Ultra Marathon in Hamada - 100 km | 100,00 | ×2 |
| ✓ 12 | 8/6/2025 | 9th JAL Mukatsuku Double Marathon | 84,39 | ×1 |
| ✓ 13 | 9/6/2024 | 8th JAL Mukatsuku Double Marathon | 84,39 | ×1 |
| ✓ 14 | 11/6/2023 | 7th JAL Mukatsuku Double Marathon | 84,39 | ×1 |
| ✓ 15 | 4/5/2009 | 21. Yamaguchi 100 Hagi-O-Kan Maranic 70 km | 70,00 | ×1 |
| ✓ 16 | 4/5/2008 | 20. Yamaguchi 100 Hagi-O-Kan Maranic 70 km | 70,00 | ×1 |