Yasuo (境康雄) Sakai
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Born : 1973
Cat. M50 Ultrarunner since 2010
16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
31
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 ?
FranceJapan
FranceJapan23,1%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 1 712; Σ finishers = 7 402. 1 712 / 7 402 × 100 = 23.13%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 265 km
> 100 km3
> 160 km1
Longest race168,0 km
11ème Ultra Trail Tour du Mont Blanc (UTMB) — 30/8/2013
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road35,6%
Trail64,4%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
16 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 30/8/2013 | 11ème Ultra Trail Tour du Mont Blanc (UTMB) | 168,00 | ×5 |
| ✓ 2 | 18/5/2012 | 1st Ultra-Trail Mount Fuji (UTMF) | 156,00 | ×5 |
| ✓ 3 | 23/3/2013 | 8th Mt. Rocco Cannonball Run - 112 km Power | 112,00 | ×3 |
| ✓ 4 | 13/7/2013 | 6th OSJ Ontake 100km Ultra Trail | 100,00 | ×3 |
| ✓ 5 | 20/6/2010 | 5. Okinoshima 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 6 | 10/3/2013 | 1st Izu Trail Journey | 72,00 | ×2 |
| ✓ 7 | 21/4/2013 | 5th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 8 | 18/10/2025 | 33th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×1 |
| ✓ 9 | 16/10/2021 | 25th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×1 |
| ✓ 10 | 24/3/2018 | 18th Mt. Rocco Cannonball Run - 56 km Night Speed | 56,00 | ×1 |
| ✓ 11 | 26/3/2017 | 16th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×1 |
| ✓ 12 | 23/10/2016 | 15th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×1 |
| ✓ 13 | 30/3/2014 | 10th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×1 |
| ✓ 14 | 29/6/2014 | 1st Kobo Trail 2014 | 55,70 | ×1 |
| ✓ 15 | 3/6/2012 | 4th OSJ Okukuji Trail 50k | 50,00 | ×1 |
| ✓ 16 | 4/11/2012 | 4th Shinshu-Togakushi Trail Run Race | 45,00 | ×1 |