Joffrey Demarais
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Born : 1985
Cat. M40 Ultrarunner since 2025
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
23
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 ?
Andorra
AustriaFrance
Italy
AndorraAustriaFranceItaly12,0%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 668; Σ finishers = 5 567. 668 / 5 567 × 100 = 12.00%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races578 km
> 100 km2
> 24h1
Longest race120,7 km
1ère Backyard Toulouse — 24/1/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail79,1%
Elim.20,9%
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 13.06 | 105km | 6ème Trail 100 Andorra by UTMB - Ultra 105K |
20:54:13 h | 81 |
| 04.04 | 100km | 3ème Ultra-Trail de l'Ile d'Oléron |
10:08:31 h | 33 |
| 2025 | ||||
| 17.10 | 70km | 14ème Grand Raid Réunion - La Mascareignes |
11:11:19 h | 39 |
| 27.09 | 55km | 4ème Nice Côte d'Azur by UTMB - 50K |
6:22:55 h | 83 |
| 08.08 | 81km | 6. KAT100 - Endurance Trail |
13:11:22 h | 25 |
| 23.03 | 46km | Chianti Marathon Trail |
6:11:27 h | 382 |
| 24.01 | Backyard Ultra | 1ère Backyard Toulouse |
120.708 km (18h) | 32 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/1/2025 | 1ère Backyard Toulouse | 120,71 | ×5 |
| ✓ 2 | 13/6/2026 | 6ème Trail 100 Andorra by UTMB - Ultra 105K | 105,00 | ×4 |
| ✓ 3 | 4/4/2026 | 3ème Ultra-Trail de l'Ile d'Oléron | 100,00 | ×4 |
| ✓ 4 | 8/8/2025 | 6. KAT100 - Endurance Trail | 81,00 | ×3 |
| ✓ 5 | 17/10/2025 | 14ème Grand Raid Réunion - La Mascareignes | 70,00 | ×3 |
| ✓ 6 | 27/9/2025 | 4ème Nice Côte d'Azur by UTMB - 50K | 55,00 | ×2 |
| ✓ 7 | 23/3/2025 | Chianti Marathon Trail | 46,00 | ×2 |