Matthew Barker
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14
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
29
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
34,4%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 273; Σ finishers = 794. 273 / 794 × 100 = 34.38%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 130 km
> 100 km3
> 160 km3
Longest race160,9 km
27th Umstead Endurance Run 100 Miles — 2/4/2022
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road26,9%
Trail73,1%
HISTORY
14 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 14.12 | 50km | 4:32:43 h | 13 | |
| 2024 | ||||
| 15.12 | 50km | 4:55:57 h | 19 | |
| 2022 | ||||
| 02.04 | 100mi | 20:11:43 h | 19 | |
| 08.01 | 50km | 6:16:52 h | 12 | |
| 2021 | ||||
| 10.04 | 12h | 54.223 km | 32 | |
| 2006 | ||||
| 08.04 | 100mi | 22:38:36 h | 27 | |
| 25.02 | 100km | 10:55:48 h | 5 | |
| 2005 | ||||
| 23.07 | 50km | 6:04:26 h | 19 | |
| 18.06 | 35mi | 10:47:47 h | 37 | |
| 2003 | ||||
| 19.07 | 50km | 5:04:53 h | 6 | |
| 14.06 | 35mi | 7:34:59 h | 12 | |
| 05.04 | 50mi | 10:11:34 h | 22 | |
| 2002 | ||||
| 06.07 | 50km | 5:55:30 h | 16 | |
| 06.04 | 100mi | 26:13:47 h | 48 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 2/4/2022 | 27th Umstead Endurance Run 100 Miles | 160,93 | ×5 |
| ✓ 2 | 8/4/2006 | 12th Umstead Endurance Run 100 Miles | 160,93 | ×5 |
| ✓ 3 | 6/4/2002 | 8th Umstead Endurance Run 100 Miles | 160,93 | ×5 |
| ✓ 4 | 25/2/2006 | 2nd 100km Silver Comet Ultra Run | 100,00 | ×3 |
| ✓ 5 | 5/4/2003 | 9th Umstead Endurance Run 50 Miles | 80,47 | ×2 |
| ✓ 6 | 18/6/2005 | 11th Laurel Valley 35 Miles | 56,33 | ×1 |
| ✓ 7 | 14/6/2003 | 9th Laurel Valley 35 Miles | 56,33 | ×1 |
| ✓ 8 | 10/4/2021 | 1st Ruts Paradise 12 Hour Race | 54,22 | ×1 |
| ✓ 9 | 14/12/2025 | 8th Palmetto Bluff Buffalo Run | 50,00 | ×1 |
| ✓ 10 | 15/12/2024 | 7th Palmetto Bluff Buffalo Run | 50,00 | ×1 |
| ✓ 11 | 8/1/2022 | 12th Harbison 50K | 50,00 | ×1 |
| ✓ 12 | 23/7/2005 | 12th Big Butt 50 km | 50,00 | ×1 |
| ✓ 13 | 19/7/2003 | 10th Big Butt 50 km | 50,00 | ×1 |
| ✓ 14 | 6/7/2002 | 9th Big Butt 50 km | 50,00 | ×1 |