Janneke Cazemier
ID 5268
Born : 1963 Cat. W60 Ultrarunner since 2001 NED
39
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
57
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 ?AUTAustriaITAItalyNEDNetherlandsTPETaiwan
65,9%
Rank quotient ?This runner's calculation uses 42 eligible race(s): Σ(rank − 1) = 1 298; Σ finishers = 1 969. 1 298 / 1 969 × 100 = 65.92%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed53
Km — ultra races4 712 km
> 100 km12
> 160 km10
> 200 km3
> 24h8
Longest race503,0 km
7. pieter-ROG-pad — 12/6/2005

Km per year (ultra races)

388
4 races
2022
955
9 races
2023
100
1 race
2024
82
1 race
2025
241
2 races
2026

Race types (share of distance)

Road61,4%
Trail7,1%
Stage21,4%
Elim.1,4%
Ult.Walk8,6%

Wins & podiums (ultra)

🏆 Win3
🏆 Win F12
🏅 Top 39
🏅 Top 3 F25
Longest winning streak1
Current streak0

Records

50 km5h09'14100 km10h25'5750 mi9h15'10100 mi29h46'226 h60,29 km12 h94,80 km24 h203,63 km

HISTORY

45 race(s) · 5 stage(s) nested · 3 split(s) nested
DateRacePerf.Rk
2026
06.06 100mi NED9.5 De 100 mijl van Sint-Annen - self supported 30:26:18 h3 🥉
16.05 12h NED12-uursloop Terwille 80.000 km4
2025
18.04 82km NED4e Kennedymars Sint Annen 15:31:00 h3 🥉
2024
27.01 100km NEDHoHo 100km 12:56:13 h23
2023
23.09 62km NEDAppelscha - Groningen 8:36:11 h5
23.09 56km NEDGroningen - Appelscha 8:04:00 h5
23.09 118km/2stages NEDGroningen - Appelscha - Groningen 16:40:11 h5
01.09 81km NED1e Kennedymars Kloosterburen 15:03:19 h1 🏆
24.06 100mi NED7th De 100 mijl van Sint-Annen 30:09:22 h3 🥉
03–07.05 271km/5stages NED2 Pallas 67 Ultrameerdaagse 40:54:00 h15
17.03 81km NED3de Kennedymars Sint Annen 15:50:00 h3 🥉
18.02 50km NEDBEEsports baanultra 50km 5:48:34 h14
27.01 75km NEDDutch Coast Ultra Run by Night 75km 18h 11:32:00 h5
2022
08.12 80km NED2e Kennedymars Sint Annen 15:38:09 h1 🏆
02.09 80km NED1e Kennedymars Sint Annen 14:08:08 h3 🥉
01.07 24h NEDKardingebultra 67.060 km15
04.06 100mi NED6th De 100 mijl van Sint-Annen 29:46:22 h7
2006
12.11 100km NED1e AV Daventria Centennial 100 km in Deventer 11:19:10 h21
23.09 100km ITAIAU 24h EC Verona (12^ Lupatotissima 24 ore) - 100km Split 11:29:30 h30
23.09 24h ITAIAU 24h EC Verona (12^ Lupatotissima 24 ore) 130.875 km27
25.02 24h TPEIAU 24h WC Taipei Yuanshan 203.625 km44
2005
20.11 6h NEDSelf Transcendence 6 uur Amsterdam 60.293 km18
16.07 24h AUTIAU 24h EC Wörschach 194.697 km54
16.07 24h AUTIAU 24h WC Wörschach 194.697 km73
12.06 503km/7stages NED7. pieter-ROG-pad 2d 16:18:00 h1 🏆
06.05 24h NED26e 24 uurs Apeldoorn 74.372 km45
18.04 100km NEDDe 100 km van Diever 10:25:57 h12
28.03 60km NED8e De Zestig van Texel 6:07:40 h154
2004
11.09 100km NED29. IAU 100km WC Winschoten 10:56:46 h186
29.08 50km NEDDe Vijftig van Gouda 5:09:14 h20
21.08 60km NED60 km Monnikentocht 6:30:00 h17
21.05 24h NED25e 24 uurs Apeldoorn 185.508 km17
01.05 100km NEDDe 100 km van Diever 10:57:53 h3 🥉
10.04 80.45km NEDJan Knippenberg Memorial 50 EM 9:15:10 h40
27.03 6h NEDZes uur ultraloop D.T.S. 57.399 km18
2003
11.10 12h NEDOpen race at IAU 24h WC & EC Uden - 12h Split 97.539 km148
11.10 24h NEDOpen race at IAU 24h WC & EC Uden 172.931 km19
13.09 100km NED28. RUN Winschoten 100 km 11:05:24 h37
21.04 60km NED7e De Zestig van Texel 6:49:04 h143
2002
20.10 100km NED100 km ultraloop Stein 11:16:57 h46
06.10 6h NED6h Ultraloop Amersfoort 55.203 km34
15.06 12h NED12 Uur Den Haag 94.803 km13
03.03 50km NED7de Zes uurs ultraloop Stein - 50km Split 5:22:33 h178
03.03 6h NED7de Zes uurs ultraloop Stein 55.567 km162
2001
29.12 6h NEDDe Zes Uren van Epe 52.396 km21