Bart Keijzers
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Born : 1982
Cat. M40 Ultrarunner since 2018
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
36
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
6
Countries visited ?
Austria
Belgium
Germany
Italy
LuxembourgNetherlands
AustriaBelgiumGermanyItalyLuxembourgNetherlands40,9%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 1 362; Σ finishers = 3 330. 1 362 / 3 330 × 100 = 40.90%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed22
Km — ultra races1 547 km
> 100 km6
> 160 km4
> 200 km2
> 24h2
> 48h1
Longest race276,0 km
15. Goretex TransAlpine-Run — 31/8/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail58,3%
Stage17,8%
Elim.23,8%
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 20.03 | Backyard Ultra | Dutch Backyard Ultra |
167.650 km (25h) | 16 |
| 28.02 | 50km | Maasduinen Ultra |
4:34:50 h | 17 |
| 31.01 | 50km | Leersumse Veld Ultra |
5:16:18 h | 68 |
| 2025 | ||||
| 08.11 | 85km | Puglia by UTMB - Le Maioliche di Laterza |
13:18:28 h | 285 |
| 18.10 | Backyard Ultra | Dutch Backyard Ultra |
201.180 km (30h) | 9 |
| 27.09 | 56km | Zevenheuvelentrail |
5:57:25 h | 55 |
| 07.06 | 119km | 13. mozart 100 |
20:40:54 h | 260 |
| 23.02 | 50km | Amerongse Berg Ultra 50k |
4:59:25 h | 37 |
| 2023 | ||||
| 28.10 | 83km | 11th Bear Trail 83 km |
10:23:35 h | 15 |
| 16.09 | 100mi | The Great Escape 100 miles |
27:59:00 h | 27 |
| 2019 | ||||
| 08.12 | 45km | Trail de la Soupe |
7:25:11 h | 118 |
| 31.08 | 276km/8stages | 15. Goretex TransAlpine-Run |
2d 00:31:14 h | 278 |
| 15.06 | 103.2km | Epic trail 100 km |
14:36:05 h | 58 |
| 03.02 | 50km | Hivernal Trail |
5:41:57 h | 23 |
| 2018 | ||||
| 09.12 | 50km | Houffatrail 50km |
6:39:04 h | 111 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 31/8/2019 | 15. Goretex TransAlpine-Run | 276,00 | ×7 |
| ✓ 2 | 18/10/2025 | Dutch Backyard Ultra | 201,18 | ×5 |
| ✓ 3 | 20/3/2026 | Dutch Backyard Ultra | 167,65 | ×4 |
| ✓ 4 | 16/9/2023 | The Great Escape 100 miles | 160,93 | ×4 |
| ✓ 5 | 7/6/2025 | 13. mozart 100 | 119,00 | ×3 |
| ✓ 6 | 15/6/2019 | Epic trail 100 km | 103,20 | ×2 |
| ✓ 7 | 8/11/2025 | Puglia by UTMB - Le Maioliche di Laterza | 85,00 | ×2 |
| ✓ 8 | 28/10/2023 | 11th Bear Trail 83 km | 83,00 | ×2 |
| ✓ 9 | 27/9/2025 | Zevenheuvelentrail | 56,00 | ×1 |
| ✓ 10 | 28/2/2026 | Maasduinen Ultra | 50,00 | ×1 |
| ✓ 11 | 31/1/2026 | Leersumse Veld Ultra | 50,00 | ×1 |
| ✓ 12 | 23/2/2025 | Amerongse Berg Ultra 50k | 50,00 | ×1 |
| ✓ 13 | 3/2/2019 | Hivernal Trail | 50,00 | ×1 |
| ✓ 14 | 9/12/2018 | Houffatrail 50km | 50,00 | ×1 |
| ✓ 15 | 8/12/2019 | Trail de la Soupe | 45,00 | ×1 |