Marc Witkes

Born : 1966 Cat. M60 Ultrarunner since 1998

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

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

Countries visited ?

United States

32,3%

Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 272; Σ finishers = 842. 272 / 842 × 100 = 32.30%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed12

Km — ultra races1 187 km

> 100 km2

> 160 km2

> 200 km1

> 24h1

> 48h1

Longest race282,8 km

19th Across the Years, 72h — 29/12/2001

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road23,8%

Trail76,2%

Records

50 km4h16'53 50 mi7h39'20 100 mi45h21'42

HISTORY

14 race(s)

Date		Race	Perf.	Rk
2003
18.10	50mi	19th Palo Duro 50 Mile Trail Run	10:18:52 h	13
22.03	50mi	4th Grasslands 50 Mile Trail Run	7:39:20 h	7
01.03	50mi	13th Old Pueblo 50 Mile Endurance Run	9:26:12 h	10
08.02	50km	5th Pemberton Trail 50 km	4:16:53 h	14
2002
19.10	50mi	18th Palo Duro 50 Mile Trail Run	9:16:31 h	7
01.06	50mi	6th Snow Peaks 50 Mile Trail Run	10:46:25 h	33
2001
29.12	72h	19th Across the Years, 72h	282.800 km	5
13.07	100mi	9th Hardrock Hundred Endurance Run	45:21:42 h	53
02.06	50mi	5th Snow Peaks 50 Mile Trail Run	11:03:36 h	29
2000
10.12	50km	14th OTHTC High Desert 50K Ultra	4:35:50 h	33
10.09	48h	13th Sri Chinmoy Ultra Trio 700 Mile Race - 48h Split	194.730 km	17
10.09	6d	13th Sri Chinmoy Ultra Trio 700 Mile Race - 6d Split	495.677 km	15
06.05	50mi	3rd Collegiate Peaks 50 Miles	10:51:07 h	38
1998
04.01	50mi	1st Phoenix National Trail 50 Mile Endurance Run	11:23:16 h	42

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	29/12/2001	19th Across the Years, 72h	282,80	×9
✓ 2	13/7/2001	9th Hardrock Hundred Endurance Run	160,93	×5
✓ 3	18/10/2003	19th Palo Duro 50 Mile Trail Run	80,47	×2
✓ 4	22/3/2003	4th Grasslands 50 Mile Trail Run	80,47	×2
✓ 5	1/3/2003	13th Old Pueblo 50 Mile Endurance Run	80,47	×2
✓ 6	19/10/2002	18th Palo Duro 50 Mile Trail Run	80,47	×2
✓ 7	1/6/2002	6th Snow Peaks 50 Mile Trail Run	80,47	×2
✓ 8	2/6/2001	5th Snow Peaks 50 Mile Trail Run	80,47	×2
✓ 9	6/5/2000	3rd Collegiate Peaks 50 Miles	80,47	×2
✓ 10	4/1/1998	1st Phoenix National Trail 50 Mile Endurance Run	80,47	×2
✓ 11	8/2/2003	5th Pemberton Trail 50 km	50,00	×1
✓ 12	10/12/2000	14th OTHTC High Desert 50K Ultra	50,00	×1