Willem Debersaques
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
Born : 2001
Cat. M23 Ultrarunner since 2024
3
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
15
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 ?
Netherlands
Netherlands76,0%
Rank quotient ?This runner's calculation uses 3 eligible race(s): Σ(rank − 1) = 218; Σ finishers = 287. 218 / 287 × 100 = 75.96%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed3
Km — ultra races254 km
> 100 km1
> 24h3
Longest race100,6 km
5. 24hrs Sittard — 9/5/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
4 race(s) · 4 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 09.05 | 24h | 5. 24hrs Sittard |
100.572 km | 86 |
| 09.05 | 50km | 5. 24hrs Sittard - 50km Split | 9:58:15 h | 104 |
| 09.05 | 50mi | 5. 24hrs Sittard - 50mi Split | 16:40:46 h | 89 |
| 09.05 | 100km | 5. 24hrs Sittard - 100km Split | 22:57:50 h | 86 |
| 2025 | ||||
| 03.05 | 24h | 4. 24hrs Sittard |
67.149 km | 68 |
| 03.05 | 50km | 4. 24hrs Sittard - 50km Split | 12:57:47 h | 77 |
| 2024 | ||||
| 23.03 | 50km | 3. 24hrs Sittard - 50km Split |
8:55:11 h | 89 |
| 23.03 | 24h | 3. 24hrs Sittard |
85.892 km | 67 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 9/5/2026 | 5. 24hrs Sittard | 100,57 | ×6 |
| ✓ 2 | 23/3/2024 | 3. 24hrs Sittard | 85,89 | ×5 |
| ✓ 3 | 3/5/2025 | 4. 24hrs Sittard | 67,15 | ×4 |