Yukihiro (白石幸寛) Shiraishi
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Born : 1977
Cat. M45 Ultrarunner since 2016
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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
Japan31,7%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 1 097; Σ finishers = 3 462. 1 097 / 3 462 × 100 = 31.69%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races569 km
> 100 km2
Longest race143,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road20,7%
Trail79,3%
Records
No record for a classic ultra format
HISTORY
7 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/9/2019 | 6th SkyView Ultra-Trail 140 - Yamada Noboru Memorial Cup | 143,00 | ×6 |
| ✓ 2 | 24/4/2016 | 26th Fuji 5 Lakes 118 km Challenge | 118,00 | ×5 |
| ✓ 3 | 26/6/2016 | 3. Spatrail - Shima to Kusatsu | 72,70 | ×3 |
| ✓ 4 | 3/11/2019 | 3rd Koshu Alps Haute Route Challenge | 67,00 | ×3 |
| ✓ 5 | 13/7/2019 | 10th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×2 |
| ✓ 6 | 19/11/2016 | 2nd FunTrails50K Two Lakes&Green line | 52,00 | ×2 |
| ✓ 7 | 10/5/2026 | 7th FunTrails Round Minano | 51,00 | ×2 |