Brenda Fox
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18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
27
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
2
Countries visited ?
South Africa
United States
77,7%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 13 273; Σ finishers = 17 075. 13 273 / 17 075 × 100 = 77.73%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 045 km
> 24h3
Longest race87,0 km
96th Comrades Marathon - Down Run — 11/6/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road28,2%
Trail54,0%
Elim.17,8%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F1
🏅 Top 30
🏅 Top 3 F4
Longest winning streak0
Current streak0
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 11/6/2023 | 96th Comrades Marathon - Down Run | 87,00 | ×3 |
| ✓ 2 | 20/1/2023 | 8th Southern Tour Ultra Last Man Standing | 67,06 | ×2 |
| ✓ 3 | 20/1/2022 | 7th Southern Tour Ultra Last Man Standing | 67,06 | ×2 |
| ✓ 4 | 7/12/2024 | 6th Shakori 40 Mile Running Festival | 64,37 | ×2 |
| ✓ 5 | 9/12/2023 | 5th Shakori 40 Mile Running Festival | 64,37 | ×2 |
| ✓ 6 | 10/12/2022 | 4th Shakori 40 Mile Running Festival | 64,37 | ×2 |
| ✓ 7 | 26/1/2019 | 3rd Tideland 24 Hours | 61,16 | ×2 |
| ✓ 8 | 10/10/2020 | 4th Allison Woods Halloween Hobble 12 Hour Endurance Run | 57,94 | ×2 |
| ✓ 9 | 7/6/2025 | 8th Dam Yeti 55 km Race | 55,00 | ×2 |
| ✓ 10 | 1/6/2024 | 7th Dam Yeti 50 km Race | 55,00 | ×2 |
| ✓ 11 | 19/6/2020 | 1st Longest Day Race | 51,50 | ×1 |
| ✓ 12 | 27/9/2025 | 19th Hinson Lake 24 Hour Ultra Classic | 50,80 | ×1 |
| ✓ 13 | 30/10/2022 | 3rd Marine Corps 50km Marathon Race | 50,00 | ×1 |
| ✓ 14 | 19/3/2022 | 9th Badwater Cape Fear 50 km | 50,00 | ×1 |
| ✓ 15 | 2/10/2021 | 8th Badwater Cape Fear 50 km | 50,00 | ×1 |
| ✓ 16 | 20/5/2017 | 4th Knock on Wood Ultra - Forest Freak 50k | 50,00 | ×1 |
| ✓ 17 | 9/2/2014 | 8th Gator Trail 50 km | 50,00 | ×1 |
| ✓ 18 | 29/12/2018 | 2nd Resolution Run | 48,92 | ×1 |