Premysl Belaska
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Born : 1974
Cat. M50 Ultrarunner since 2016
17
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
42
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
4
Countries visited ?Czechia
Germany
Hungary
Slovakia
CzechiaGermanyHungarySlovakia28,9%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 535; Σ finishers = 1 851. 535 / 1 851 × 100 = 28.90%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races2 050 km
> 100 km9
> 160 km5
> 200 km2
> 24h7
> 48h4
Longest race243,8 km
5th K6 Czech Ultramarathon Festival - 48h — 2/5/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road52,5%
Trail17,7%
Elim.29,8%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 30
🏅 Top 3 M1
Longest winning streak0
Current streak0
HISTORY
17 race(s) · 6 split(s) nested| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 2/5/2026 | 5th K6 Czech Ultramarathon Festival - 48h | 243,80 | ×5 |
| ✓ 2 | 1/10/2021 | XV. Ultrabalaton 216km | 216,00 | ×5 |
| ✓ 3 | 19/9/2020 | 4. Běh na 24 hodin Pilsen | 180,80 | ×4 |
| ✓ 4 | 8/5/2025 | 4. Czechia Backyard Ultra Run | 174,36 | ×4 |
| ✓ 5 | 13/7/2024 | 4. Laufhaus Backyard Ultra | 160,94 | ×3 |
| ✓ 6 | 11/7/2026 | 6. O-SEE Backyard Ultra | 140,83 | ×3 |
| ✓ 7 | 17/11/2023 | 2. Czechia Backyard Ultra Run | 134,12 | ×3 |
| ✓ 8 | 26/5/2018 | Self-Transcendence 12 h race Prag | 116,67 | ×2 |
| ✓ 9 | 21/4/2018 | 11. Lazová stovka | 113,00 | ×2 |
| ✓ 10 | 9/9/2023 | 7. Baroko ultra 100 km | 100,00 | ×2 |
| ✓ 11 | 27/10/2018 | 2. Běh na 24 hodin Pilsen | 100,00 | ×2 |
| ✓ 12 | 24/3/2018 | Běhu na 100 km Pilsen | 100,00 | ×2 |
| ✓ 13 | 25/5/2019 | Self-Transcendence 6 h race Prag | 63,55 | ×1 |
| ✓ 14 | 28/5/2016 | Self-Transcendence 6 h race Prag | 56,13 | ×1 |
| ✓ 15 | 25/8/2018 | Běhej Lesy Jizerská 50 km | 50,00 | ×1 |
| ✓ 16 | 2/9/2017 | Běhej Lesy Jizerská 50 km | 50,00 | ×1 |
| ✓ 17 | 5/8/2017 | Krkonosska padesatka 2017 | 50,00 | ×1 |