Mamoru (坂倉守) Sakakura
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Born : 1973
Cat. M50 Ultrarunner since 2012
17
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
36
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
Japan10,7%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 1 177; Σ finishers = 10 991. 1 177 / 10 991 × 100 = 10.71%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 578 km
> 100 km4
Longest race112,0 km
9th Mt. Rocco Cannonball Run - 112 km Power — 26/10/2013
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road56,4%
Trail43,6%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 30
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 26/10/2013 | 9th Mt. Rocco Cannonball Run - 112 km Power | 112,00 | ×3 |
| ✓ 2 | 21/4/2013 | 23rd Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 3 | 22/4/2012 | 22nd Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 4 | 22/9/2015 | 7th Shinetsu Five Mountains Trail 110km | 110,00 | ×3 |
| ✓ 5 | 12/1/2020 | 5th Yakushima Ultramarathon 100 km | 100,00 | ×2 |
| ✓ 6 | 20/10/2019 | 25th River Shimanto 100km | 100,00 | ×2 |
| ✓ 7 | 15/10/2017 | 23rd River Shimanto 100km | 100,00 | ×2 |
| ✓ 8 | 16/7/2016 | 9th OSJ Ontake 100km Ultra Trail | 100,00 | ×2 |
| ✓ 9 | 18/10/2015 | 21st River Shimanto 100km | 100,00 | ×2 |
| ✓ 10 | 19/7/2014 | 7th OSJ Ontake 100km Ultra Trail | 100,00 | ×2 |
| ✓ 11 | 7/9/2013 | 2nd OSJ Yatsugatake Super Trail 100 km race | 100,00 | ×2 |
| ✓ 12 | 20/7/2025 | 17th OSJ Ontake 100km Ultra Trail | 99,50 | ×2 |
| ✓ 13 | 21/5/2017 | 22th Saba Highway Ultramarathon | 77,00 | ×2 |
| ✓ 14 | 22/5/2016 | 21th Saba Highway Ultramarathon | 77,00 | ×2 |
| ✓ 15 | 10/3/2013 | 1st Izu Trail Journey | 72,00 | ×2 |
| ✓ 16 | 28/10/2022 | 27th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×1 |
| ✓ 17 | 10/11/2013 | 5th Kanna Mountain Run | 50,00 | ×1 |