Marek Jirasek
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Born : 1973
Cat. M50 Ultrarunner since 2015
20
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
49
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
5
Countries visited ?
China
CroatiaCzechia
Greece
Taiwan
ChinaCroatiaCzechiaGreeceTaiwan32,5%
Rank quotient ?This runner's calculation uses 23 eligible race(s): Σ(rank − 1) = 1 020; Σ finishers = 3 135. 1 020 / 3 135 × 100 = 32.54%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed23
Km — ultra races2 962 km
> 100 km7
> 160 km7
> 200 km6
> 24h5
Longest race246,0 km
40. Spartathlon — 30/9/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road96,6%
Trail3,4%
Wins & podiums (ultra)
🏆 Win1
🏆 Win M1
🏅 Top 36
🏅 Top 3 M8
Longest winning streak1
Current streak0
HISTORY
24 race(s) · 2 split(s) nested| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 30/9/2023 | 40. Spartathlon | 246,00 | ×5 |
| ✓ 2 | 30/9/2022 | 39. Spartathlon | 246,00 | ×5 |
| ✓ 3 | 24/9/2021 | 38. Spartathlon | 246,00 | ×5 |
| ✓ 4 | 27/9/2019 | 37. Spartathlon | 246,00 | ×5 |
| ✓ 5 | 23/7/2022 | Self-Transcendence Race 24h Kladno | 245,04 | ×5 |
| ✓ 6 | 2/5/2026 | 5th K6 Czech Ultramarathon Festival - 24h | 216,49 | ×4 |
| ✓ 7 | 29/7/2023 | 22. Sri Chinmoy Self-Transcendence 24-Std.-Lauf Kladno | 180,00 | ×3 |
| ✓ 8 | 28/3/2026 | 16. Běhu na 100 km Pilsen - CZE 100 km Championship | 100,00 | ×2 |
| ✓ 9 | 22/3/2025 | 15. Běhu na 100 km Pilsen | 100,00 | ×2 |
| ✓ 10 | 26/3/2022 | 12. Běhu na 100 km Pilsen | 100,00 | ×2 |
| ✓ 11 | 5/6/2021 | Běh na 100 km Pilsen | 100,00 | ×2 |
| ✓ 12 | 6/4/2019 | Běhu na 100 km Pilsen | 100,00 | ×2 |
| ✓ 13 | 8/9/2018 | Cro100 - total (WC,WMA,open) | 100,00 | ×2 |
| ✓ 14 | 24/3/2018 | Běhu na 100 km Pilsen | 100,00 | ×2 |
| ✓ 15 | 25/3/2017 | Běhu na 100 km Pilsen | 100,00 | ×2 |
| ✓ 16 | 1/12/2023 | IAU 24h WC Taipei (all races combined) | 68,00 | ×1 |
| ✓ 17 | 23/8/2025 | 12. Běhej Lesy Jizerská 50 km | 50,00 | ×1 |
| ✓ 18 | 2/3/2019 | Plzenska 50 km okolo Bolevaku | 50,00 | ×1 |
| ✓ 19 | 26/10/2018 | 1st Changan Ford Ultra Challenge 50km | 50,00 | ×1 |
| ✓ 20 | 5/9/2015 | Běhej Lesy Jizerská 50 km | 50,00 | ×1 |