Marjolein Baas
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Born : 1967
Cat. W55 Ultrarunner since 2010
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
26
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 ?United States
United States26,9%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 265; Σ finishers = 985. 265 / 985 × 100 = 26.90%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races945 km
> 100 km1
> 160 km1
Longest race160,9 km
15th Long Haul 100 Mile Ultra-Marathons — 18/1/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F2
🏅 Top 30
🏅 Top 3 F9
Longest winning streak0
Current streak0
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 15.02 | 60km | 4th Skunk Ape's Revenge 60 km |
8:21:07 h | 21 |
| 18.01 | 100mi | 15th Long Haul 100 Mile Ultra-Marathons |
26:14:53 h | 70 |
| 2024 | ||||
| 27.04 | 50mi | 1st Skunk Ape 50 Mile Endurance Run |
12:32:12 h | 24 |
| 06.04 | 50km | 30th Croom Trail 50K I'm Not A Fool Run |
5:43:28 h | 15 |
| 10.02 | 60km | 3rd Skunk Ape's Revenge 60 km |
6:55:55 h | 10 |
| 2023 | ||||
| 28.05 | 50km | 6th Sweat, Swat 'n Swear! 50 km Run |
6:05:36 h | 24 |
| 2016 | ||||
| 08.10 | 50km | 25th John Holmes 50k Trail Run |
5:33:22 h | 5 |
| 2015 | ||||
| 22.03 | 50km | 3srt Citrus Trail 50K |
5:27:09 h | 6 |
| 01.03 | 33mi | 3rd Long Play Trail Race |
6:11:40 h | 14 |
| 03.01 | 50km | 5th Croom Zoom 50 km Run |
5:48:00 h | 14 |
| 2014 | ||||
| 08.03 | 50km | 11th Dances with Dirt - Green Swamp 50 km Ultra |
5:37:47 h | 20 |
| 2013 | ||||
| 14.10 | 50km | 22nd John Holmes 50k Trail Run |
5:16:16 h | 16 |
| 06.04 | 50mi | 19th Croom Trail 50 Mile Fools Run |
9:33:53 h | 30 |
| 2011 | ||||
| 16.01 | 50km | 1st Croom Zoom 50 km Run |
4:54:18 h | 4 |
| 2010 | ||||
| 03.04 | 50km | 16th Croom Trail 50K I'm Not A Fool Run |
4:48:23 h | 7 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 18/1/2025 | 15th Long Haul 100 Mile Ultra-Marathons | 160,93 | ×6 |
| ✓ 2 | 27/4/2024 | 1st Skunk Ape 50 Mile Endurance Run | 80,47 | ×3 |
| ✓ 3 | 6/4/2013 | 19th Croom Trail 50 Mile Fools Run | 80,47 | ×3 |
| ✓ 4 | 15/2/2025 | 4th Skunk Ape's Revenge 60 km | 60,00 | ×2 |
| ✓ 5 | 10/2/2024 | 3rd Skunk Ape's Revenge 60 km | 60,00 | ×2 |
| ✓ 6 | 1/3/2015 | 3rd Long Play Trail Race | 53,11 | ×2 |
| ✓ 7 | 6/4/2024 | 30th Croom Trail 50K I'm Not A Fool Run | 50,00 | ×1 |
| ✓ 8 | 28/5/2023 | 6th Sweat, Swat 'n Swear! 50 km Run | 50,00 | ×1 |
| ✓ 9 | 8/10/2016 | 25th John Holmes 50k Trail Run | 50,00 | ×1 |
| ✓ 10 | 22/3/2015 | 3srt Citrus Trail 50K | 50,00 | ×1 |
| ✓ 11 | 3/1/2015 | 5th Croom Zoom 50 km Run | 50,00 | ×1 |
| ✓ 12 | 8/3/2014 | 11th Dances with Dirt - Green Swamp 50 km Ultra | 50,00 | ×1 |
| ✓ 13 | 14/10/2013 | 22nd John Holmes 50k Trail Run | 50,00 | ×1 |
| ✓ 14 | 16/1/2011 | 1st Croom Zoom 50 km Run | 50,00 | ×1 |
| ✓ 15 | 3/4/2010 | 16th Croom Trail 50K I'm Not A Fool Run | 50,00 | ×1 |