Dave Marks
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Born : 1976
Cat. M50 Ultrarunner since 2014
9
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
1
Countries visited ?United States
United States85,5%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 1 039; Σ finishers = 1 215. 1 039 / 1 215 × 100 = 85.51%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races595 km
Longest race100,0 km
1st Badlands Overnight 100K — 16/5/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
9 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 25.07 | 50mi | 20th Burning River 50 Mile Endurance Run |
15:55:55 h | 255 |
| 28.06 | 50km | 32nd Buckeye Trail 50k |
8:59:01 h | 171 |
| 16.05 | 100km | 1st Badlands Overnight 100K |
20:07:00 h | 20 |
| 2024 | ||||
| 01.06 | 50mi | 35th Mohican Trail 50 Mile |
17:55:44 h | 121 |
| 2023 | ||||
| 29.07 | 52mi | 17th Burning River 50 Mile Back Endurance Run |
16:46:02 h | 46 |
| 2022 | ||||
| 09.07 | 50km | 28th Buckeye Trail 50k |
8:53:03 h | 160 |
| 2015 | ||||
| 05.12 | 50km | 6th Bigfoot 50K Trail Race |
7:35:38 h | 103 |
| 2014 | ||||
| 12.07 | 50km | 20th Buckeye Trail 50k |
7:45:30 h | 111 |
| 30.03 | 50km | 7th Fools 50K Trail Run |
7:46:38 h | 61 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/5/2026 | 1st Badlands Overnight 100K | 100,00 | ×4 |
| ✓ 2 | 29/7/2023 | 17th Burning River 50 Mile Back Endurance Run | 83,69 | ×3 |
| ✓ 3 | 25/7/2026 | 20th Burning River 50 Mile Endurance Run | 80,47 | ×3 |
| ✓ 4 | 1/6/2024 | 35th Mohican Trail 50 Mile | 80,47 | ×3 |
| ✓ 5 | 28/6/2026 | 32nd Buckeye Trail 50k | 50,00 | ×2 |
| ✓ 6 | 9/7/2022 | 28th Buckeye Trail 50k | 50,00 | ×2 |
| ✓ 7 | 5/12/2015 | 6th Bigfoot 50K Trail Race | 50,00 | ×2 |
| ✓ 8 | 12/7/2014 | 20th Buckeye Trail 50k | 50,00 | ×2 |
| ✓ 9 | 30/3/2014 | 7th Fools 50K Trail Run | 50,00 | ×2 |