Arnold Koers

Born : 1962 Cat. M60 Ultrarunner since 2007

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 ?

Netherlands

28,2%

Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 355; Σ finishers = 1 258. 355 / 1 258 × 100 = 28.22%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed16

Km — ultra races1 194 km

Longest race100,0 km

36. RUN Winschoten 100 km - Nederlands Kampioenschap — 10/9/2011

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road67,0%

Trail33,0%

Wins & podiums (ultra)

🏆 Win1

🏆 Win M2

🏅 Top 33

🏅 Top 3 M3

Longest winning streak1

Current streak0

Records

50 km3h49'47 100 km8h58'33

HISTORY

19 race(s)

Date		Race	Perf.	Rk
2016
16.04	60km	10e Limburgs Zwaarste 60km	6:57:34 h	19
2014
22.06	52km	52 km Veluwezoom Trail	4:38:14 h	25
2013
23.06	52km	52 km Veluwezoom Trail	4:47:21 h	27
20.04	60km	7e Limburgs Zwaarste 60km	5:49:13 h	2 🥈
2011
13.11	50km	3e MCX Centennial 50 km in Deventer	3:49:47 h	1 🏆
10.09	100km	36. RUN Winschoten 100 km - Nederlands Kampioenschap	9:37:42 h	6
10.09	100km	WMA 100km WC (RUN Winschoten 100 km)	9:37:42 h	44
10.09	50km	36. RUN Winschoten 100 km - 50km Split	4:30:19 h	143
10.09	100km	36. RUN Winschoten 100 km	9:37:42 h	143
26.06	50km	50 km Veluwezoom Trail	4:40:20 h	9
02.04	60km	5e Limburgs Zwaarste 60km	6:41:00 h	16
2010
11.09	100km	35. RUN Winschoten 100 km	10:22:37 h	21
2009
08.11	50km	1e AV Daventria Centennial 50 km in Deventer	3:54:13 h	3 🥉
12.09	50km	34. RUN Winschoten 100 km - 50km Split	4:18:01 h	15
12.09	100km	34. RUN Winschoten 100 km	8:58:33 h	11
13.04	60km	10e De Zestig van Texel	5:02:52 h	15
2008
13.09	50km	33. RUN Winschoten 100 km - 50km Split	4:20:37 h	18
13.09	100km	33. RUN Winschoten 100 km	9:38:22 h	22
2007
11.11	100km	2e AV Daventria Centennial 100 km in Deventer	10:06:10 h	7

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	10/9/2011	36. RUN Winschoten 100 km - Nederlands Kampioenschap	100,00	×3
✓ 2	11/9/2010	35. RUN Winschoten 100 km	100,00	×3
✓ 3	12/9/2009	34. RUN Winschoten 100 km	100,00	×3
✓ 4	13/9/2008	33. RUN Winschoten 100 km	100,00	×3
✓ 5	11/11/2007	2e AV Daventria Centennial 100 km in Deventer	100,00	×3
✓ 6	16/4/2016	10e Limburgs Zwaarste 60km	60,00	×2
✓ 7	20/4/2013	7e Limburgs Zwaarste 60km	60,00	×2
✓ 8	2/4/2011	5e Limburgs Zwaarste 60km	60,00	×2
✓ 9	13/4/2009	10e De Zestig van Texel	60,00	×2
✓ 10	22/6/2014	52 km Veluwezoom Trail	52,00	×1
✓ 11	23/6/2013	52 km Veluwezoom Trail	52,00	×1
✓ 12	13/11/2011	3e MCX Centennial 50 km in Deventer	50,00	×1
✓ 13	26/6/2011	50 km Veluwezoom Trail	50,00	×1
✓ 14	8/11/2009	1e AV Daventria Centennial 50 km in Deventer	50,00	×1