Cor Butter
ID 14925
Born : 1945 Cat. M80 Ultrarunner since 1997 NED
25
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
40
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
4
Countries visited ?GERGermanyNEDNetherlandsPORPortugalSUISwitzerland
73,7%
Rank quotient ?This runner's calculation uses 25 eligible race(s): Σ(rank − 1) = 2 943; Σ finishers = 3 991. 2 943 / 3 991 × 100 = 73.74%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed36
Km — ultra races2 545 km
> 100 km1
> 160 km1
> 200 km1
Longest race405,4 km
1. Internationaler Spreelauf Gesamtwertung — 21/5/2000

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road35,9%
Trail32,3%
Stage31,9%

Records

100 km11h21'2650 mi9h05'526 h66,52 km

HISTORY

33 race(s) · 1 split(s) nested
DateRacePerf.Rk
2008
20.09 100km POR1. Madeira Island Ultra Trail, 100 km 24:30:02 h64
12.04 60km NEDCastricum 60 km 8:02:20 h12
2007
09.04 60km NED9e De Zestig van Texel 6:26:59 h161
2006
22.10 6h NEDSelf Transcendence 6 uur Amsterdam 56.338 km9
2005
28.03 60km NED8e De Zestig van Texel 6:18:46 h170
2004
11.09 100km NED29. IAU 100km WC Winschoten 11:44:58 h200
03.07 61.2km NED1e Ronde van Amsterdam 7:23:30 h9
10.04 80.45km NEDJan Knippenberg Memorial 50 EM 9:05:52 h37
2003
13.09 100km NED28. RUN Winschoten 100 km 11:21:26 h39
26.07 78km SUI18. Swiss Alpine Marathon 10:31:28 h733
21.04 60km NED7e De Zestig van Texel 6:17:07 h103
29.03 6h NEDZes uur ultraloop D.T.S. 58.287 km20
2002
06.10 6h NED6h Ultraloop Amersfoort 48.490 km44
14.09 50km NED27. IAU 100km EC Winschoten - 50km Split 5:20:52 h101
14.09 100km NED27. IAU 100km EC Winschoten 11:42:38 h100
29.06 6h NED6 uren van de Haarlemmermeer 56.114 km29
2001
29.09 100km NED26. IAU 100km EC Winschoten 11:36:10 h86
28.07 78km SUI16. Swiss Alpine Marathon 10:46:40 h693
16.04 6h NEDDe Zes Uur van Texel 61.570 km43
2000
09.09 100km NED25. IAU 100km WC Winschoten 11:21:42 h172
19.08 64km GER2. Int. Niddatallauf 64 km 6:05:38 h37
26.05 54.1km GERSpreelauf Etappe 6 Neu Zittau-Berlin/Spandau 7:56:41 h31
25.05 76.7km GERSpreelauf Etappe 5 Beeskow-Neu Zittau 12:09:04 h34
24.05 80km GERSpreelauf Etappe 4 Lübbenau-Beeskow 13:20:58 h35
23.05 73.1km GERSpreelauf Etappe 3 Spremberg-Lübbenau 11:12:36 h38
22.05 73.8km GERSpreelauf Etappe 2 Bautzen-Spremberg 9:27:54 h35
21.05 47.7km GERSpreelauf Etappe 1 Eibau/Walddorf-Bautzen 5:25:54 h34
21.05 405.4km/6stages GER1. Internationaler Spreelauf Gesamtwertung 2d 11:33:07 h34
12.03 6h NED5de Zes uurs ultraloop Stein 66.520 km57
12.03 50km NED5de Zes uurs ultraloop Stein - 50km Split 4:25:15 h67
1999
03.10 6h NED6h Ultraloop Amersfoort 65.161 km9
04.04 60km NED5e De Zestig van Texel 5:38:52 h61
1997
31.03 60km NED4e De Zestig van Texel 5:35:25 h46