Jan de Clerck
Born : 1985 Cat. M40 Ultrarunner since 2016 BEL
40
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
5
Countries visited ?BELBelgiumFRAFranceGBRUnited KingdomITAItalySUISwitzerland
9,6%
Rank quotient ?This runner's calculation uses 40 eligible race(s): Σ(rank − 1) = 969; Σ finishers = 10 047. 969 / 10 047 × 100 = 9.64%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed41
Km — ultra races3 451 km
> 100 km7
> 160 km3
> 200 km2
Longest race330,0 km

Km per year (ultra races)

478
5 races
2022
835
8 races
2023
429
3 races
2024
165
2 races
2025
2026

Race types (share of distance)

Trail97,3%
Stage2,7%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 36
🏅 Top 3 M6
Longest winning streak1
Current streak0

HISTORY

40 race(s)
DateRacePerf.Rk
2025
22.02 101km BEL4ème Trail de la Siberie - 100km 16:22:37 h38
09.02 64km BELMuziekbos Trail - 64 km 8:35:17 h22
2024
21.09 55km BELTrail des Fées 6:05:42 h13
12.07 100km ITA12° Gran Trail Courmayeur 100 km 19:04:24 h14
23.02 274km BELLegends Trail 250 2d 13:43:00 h14
2023
22.10 54km FRA12ème Belfortrail 7:12:08 h37
07.10 75km BELInfinity Trail - Ultra Trail 9:43:11 h2 🥈
10.09 330km ITA14° TOR330 - Tor des Géants 3d 22:22:21 h33
01.07 70km BEL14ème Festival Trail Semois 7:23:57 h3 🥉
24.06 85km FRA12ème Ardennes Méga Trail 13:03:56 h50
27.05 93km/2stages FRA11ème La Maxi Race du Lac d'Annecy - XL Race 11:56:58 h17
13.05 83km BELGrand Trail des Lacs et Châteaux 83km 10:05:50 h27
22.04 45km BEL1. MUT - Muur Ultra Trail 45km 3:34:49 h1 🏆
2022
23.10 56km FRA11ème Belfortrail 6:42:05 h13
19.08 110km FRAla PICaPICA 30:41:47 h9
04.06 80km BEL15e Ohm Trail - Ultra 9:58:11 h26
06.05 157km FRA1er Tarn Valley Trail 23:11:05 h15
23.04 75km BEL14ème Trail La Bouillonnante 75 km 8:00:12 h7
2021
21.08 84km FRA8ème L'Échappée Belle - Traversée Nord 84km 16:51:59 h29
29.05 84km BELGrand Trail des Lacs et Châteaux 84km 9:15:47 h7
2019
24.11 69km BEL24ème Olne-Spa-Olne 6:20:49 h8
14.09 50.9km BELTrail des Fées 4:50:48 h2 🥈
10.05 170.9km GBR2nd Ultra-Trail Snowdonia UTS100 33:27:57 h2 🥈
27.04 76km BEL14ème Trail La Bouillonnante 76 km 11:30:35 h171
30.03 55km BEL8ème Trail des Crêtes de Spa 4:46:35 h13
23.03 52km BELHADT Hard Aisne Durbuy Trail 5:57:17 h11
19.01 46km BELBossen van Vlaanderen Trail 4:17:19 h50
2018
25.11 69km BEL23ème Olne-Spa-Olne 7:10:32 h33
19.10 101km FRA12ème Festival des Templiers - Endurance Trail 14:43:52 h101
08.09 90km SUISwissPeaks 90 15:35:38 h26
03.06 50km BEL13e Ohm Trail 6:07:41 h14
12.05 53mi GBR1st Ultra-Trail Snowdonia UTS50 15:16:37 h21
29.04 70km FRATrail du Grand Ballon 70km 8:40:09 h4
24.03 52km BELHADT Hard Aisne Durbuy Trail 5:59:34 h7
24.02 45km BELLe Trail des Bosses 45 km 3:44:21 h2 🥈
20.01 45km BELBossen van Vlaanderen Trail 3:52:41 h17
2017
23.12 53km BEL4ème Trail des Gueules Noires 5:44:35 h7
26.11 70km BEL22ème Olne-Spa-Olne 7:06:40 h27
22.10 56km FRA7ème Belfortrail 7:12:55 h43
2016
27.11 70km BEL21ème Olne-Spa-Olne 7:35:37 h73