Joffrey Czarny
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15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
35
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
11
Countries visited ?
Andorra
France
United Kingdom
Italy
South Korea
Morocco
Malaysia
Singapore
Switzerland
Thailand
Vietnam
50,3%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 4 020; Σ finishers = 7 987. 4 020 / 7 987 × 100 = 50.33%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed22
Km — ultra races1 533 km
> 100 km6
> 160 km2
> 200 km1
Longest race270,0 km
40. Marathon des Sables Legendary — 5/4/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail75,5%
Stage24,5%
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 5/4/2026 | 40. Marathon des Sables Legendary | 270,00 | ×7 |
| ✓ 2 | 18/10/2018 | 26ème Grand Raid Réunion - La Diagonale des Fous | 165,70 | ×4 |
| ✓ 3 | 7/7/2017 | Andorra Ultra Trail - Mític 112 km | 112,00 | ×3 |
| ✓ 4 | 27/6/2025 | 4th Ultra Trail Singapore (UTSG) 105k Stage Race | 105,00 | ×3 |
| ✓ 5 | 15/7/2023 | 11. Eiger Ultra Trail 101 km | 101,00 | ×2 |
| ✓ 6 | 20/10/2017 | 11ème Festival des Templiers - Endurance Trail | 100,50 | ×2 |
| ✓ 7 | 22/9/2023 | 11. Vietnam Mountain Marathon 100km | 100,00 | ×2 |
| ✓ 8 | 7/12/2024 | 1st Chiangmai Thailand by UTMB - ELEPHANT 100 | 93,00 | ×2 |
| ✓ 9 | 29/6/2019 | 1^ Ultra Dolomites | 87,00 | ×2 |
| ✓ 10 | 4/3/2023 | 5th Dalat Ultra Trail - 85 km | 85,00 | ×2 |
| ✓ 11 | 12/10/2019 | Lakes in a day Ultra | 82,30 | ×2 |
| ✓ 12 | 24/5/2025 | 24th Jeju-do Trail 80 km | 80,00 | ×2 |
| ✓ 13 | 5/3/2016 | Black Mountain Trail - Coupo Campo | 55,00 | ×1 |
| ✓ 14 | 17/9/2022 | 10th The Most Beautiful Thing (TMBT) 50 km Ultra Trail Marathon | 50,00 | ×1 |
| ✓ 15 | 21/8/2016 | 4ème Trail du Galibier | 46,00 | ×1 |