Karen Claes
Born : 1987 Cat. W35 Ultrarunner since 2016 BEL
52
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
55
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
3
Countries visited ?BELBelgiumLUXLuxembourgNEDNetherlands
62,7%
Rank quotient ?This runner's calculation uses 67 eligible race(s): Σ(rank − 1) = 5 185; Σ finishers = 8 276. 5 185 / 8 276 × 100 = 62.65%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed73
Km — ultra races5 554 km
> 100 km13
> 160 km9
> 24h10
Longest race185,7 km

Km per year (ultra races)

541
3 races
2022
668
6 races
2023
769
9 races
2024
442
4 races
2025
233
3 races
2026

Race types (share of distance)

Road12,3%
Trail62,3%
Stage5,2%
Elim.20,3%

Wins & podiums (ultra)

🏆 Win1
🏆 Win F6
🏅 Top 31
🏅 Top 3 F22
Longest winning streak1
Current streak0

HISTORY

73 race(s) · 3 split(s) nested
DateRacePerf.Rk
2026
24.07 76km BELBrabantse Wooden Trail BWT 70 2026 9:36:00 h5
21.06 50km BELTrail de l'Ours 7:10:42 h109
22.05 Backyard Ultra BEL6° WUK M&M Backyard Ultra 107.296 km (16h)27
2025
13.12 100km BEL9 The Bello Gallico Trail 100km 14:50:00 h70
14.06 100km BEL25. Trail Godefroy Bouillon 14:25:24 h37
24.05 24h BEL1st R24u Ultraloop - 24h - Belgian 24h championship 185.738 km9
15.03 56km BELLaThareé Trail 56 km 8:54:59 h107
2024
14.12 100mi BELThe Bello Gallico Trail 100mi 28:19:00 h93
23.11 6h BEL6 hour Winter Challenge of Hamme 50.665 km14
09.11 66km BELGrand Trail des Lacs et Châteaux Winter 9:40:41 h232
19.10 Backyard Ultra BEL1st Pellenberg Ferme Backyard Ultra 73.766 km (11h)16
10.08 80km BELUltra Trail des Sources - 80km 10:43:49 h44
14.07 6h BEL13th 6 uur van Aalter 60.618 km21
17.05 Backyard Ultra BEL4. WUK M&M Backyard Ultra 160.944 km (24h)13
13.04 52.4km BELTDI (Trail des Idylles) 7:40:34 h85
11.02 64km BELMuziekbos Trail - 64 km 8:54:13 h36
2023
16.12 100mi BELThe Bello Gallico Trail 100mi 27:03:00 h103
28.10 58km BEL11th Bear Trail 58 km 7:09:54 h80
30.06 43h BELAnother One Bites the Dust 176.400 km7
20.05 24h BELUltraloopfestival Brugge - Open BK 24h 165.097 km8
08.04 52.4km BELTDI (Trail des Idylles) 7:43:05 h90
18.03 55km BELHADT Hard Aisne Durbuy Trail 8:49:16 h112
2022
15.08 46.9km BEL2 M&M Etappeloop: Ronde van Vlaanderen - Etappe 11: Oostende - Brugge 6:26:02 h1 🏆
13.08 48.1km BEL2 M&M Etappeloop: Ronde van Vlaanderen - Etappe 9: Poperinge - De Panne 7:28:59 h2 🥈
11.08 45.5km BEL2 M&M Etappeloop: Ronde van Vlaanderen - Etappe 7: Kluisbergen - Menen 8:35:05 h1 🏆
10.08 45.6km BEL2 M&M Etappeloop: Ronde van Vlaanderen - Etappe 6: Geraardsbergen - Kluisbergen 8:25:10 h7
09.08 45.0km BEL2 M&M Etappeloop: Ronde van Vlaanderen - Etappe 5: Dendermonde - Nederhasselt 7:08:33 h3 🥉
08.08 56.1km BEL2 M&M Etappeloop: Ronde van Vlaanderen - Etappe 4: Antwerpen - Dendermonde 9:22:30 h4
01.07 32h BELAnother One Bites the Dust 115.140 km35
04.06 80km BEL15e Ohm Trail - Ultra 13:08:28 h105
27.03 59km BEL9ème Trail des Crêtes de Spa 6:51:20 h117
2021
18.12 100mi BELThe Bello Gallico Trail 100mi 30:22:00 h116
30.10 58km BEL9th Bear Trail 58 km 6:37:38 h34
25.09 100mi BELThe Great Escape 100 miles 35:21:00 h47
20.08 32h BELAnother One Bites the Dust 71.508 km30
29.05 165km BEL11° Grand Trail des Lacs et Châteaux 165km 32:04:16 h83
02.05 53km BELHouffatrail 53km 6:51:12 h83
2020
26.01 50km BELHouffatrail 50km 7:02:52 h113
2019
21.12 53km BEL6ème Trail des Gueules Noires 8:19:15 h152
15.12 50mi BELThe Bello Gallico Trail 50mi 11:20:00 h32
08.12 45km BELTrail de la Soupe 6:13:59 h68
24.11 69km BEL24ème Olne-Spa-Olne 9:50:33 h426
26.10 58km BEL8th Bear Trail 58 km 7:53:50 h86
05.10 9h NEDTrappen Marathon - Last Man Standing 52.000 km13
22.09 80km LUXThe Great Escape 80km 16:47:00 h53
10.08 70km BEL4ème Trail des Fantomes 70km 12:49:13 h75
28.06 29h BELAnother One Bites the Dust 107.262 km20
01.06 12h BELKerel Challenge Run 75.960 km1 🏆
27.04 76km BEL14ème Trail La Bouillonnante 76 km 12:10:48 h244
23.03 52km BELHADT Hard Aisne Durbuy Trail 8:55:52 h192
02.02 66km BEL2. From Dusk till Dawn Night Trail - 66 km 9:52:51 h16
19.01 46km BELBossen van Vlaanderen Trail 4:57:34 h114
2018
22.12 53km BEL5ème Trail des Gueules Noires 7:52:36 h126
09.12 50km BELHouffatrail 50km 7:46:32 h215
06.10 9h NEDTrappen Marathon - Last Man Standing 50.000 km10
23.09 80km LUXThe Great Escape 80km 14:23:00 h12
08.09 55.7km BELTrail des 600 Boitheux 7:14:01 h46
14.07 100km BELLa Chouffe Trail 17:22:32 h51
29.06 31h BELAnother One Bites the Dust 101.303 km19
14.04 48km BELTDI (Trail des Idylles) 7:02:23 h88
24.03 52km BELHADT Hard Aisne Durbuy Trail 9:18:15 h125
28.01 50km BELHouffatrail 50km 7:31:41 h175
2017
23.12 53km BEL4ème Trail des Gueules Noires 8:30:11 h139
07.10 9h NEDLast Man Standing 56.100 km6
23.09 50km BELTrail des Trappistes Chimay 6:19:08 h53
12.08 100km BEL2ème Trail des Fantomes 100 km 17:51:45 h59
22.04 50km BEL12ème Trail La Bouillonnante 7:44:43 h353
16.04 6h BELLangdorpse 6 urenloop 45.252 km28
19.03 50km BELVijverRun 4:57:38 h22
2016
29.10 57km BEL5th Bear Trail 7:02:12 h91
01.10 9h NEDLast Man Standing 53.900 km7
20.03 50km BELVijverRun 5:22:09 h22
21.02 45km BELCharlepoeng Trail #2 5:30:13 h32