Isabelle Ost
Born : 1979 Cat. W45 Ultrarunner since 2006 BEL
55
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
62
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
6
Countries visited ?ANDAndorraBELBelgiumESPSpainFRAFranceITAItalyPOLPoland
20,8%
Rank quotient ?This runner's calculation uses 68 eligible race(s): Σ(rank − 1) = 3 325; Σ finishers = 16 017. 3 325 / 16 017 × 100 = 20.76%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed72
Km — ultra races6 100 km
> 100 km15
> 160 km8
> 200 km3
Longest race450,0 km

Km per year (ultra races)

688
3 races
2022
358
4 races
2023
310
5 races
2024
387
5 races
2025
114
2 races
2026

Race types (share of distance)

Trail95,0%
Stage5,0%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F22
🏅 Top 32
🏅 Top 3 F41
Longest winning streak0
Current streak0

HISTORY

68 race(s)
DateRacePerf.Rk
2026
02.05 57km ITAVibram Max...i Trail Mottarone 8:37:52 h36
11.04 57km BELTDI (Trail des Idylles) 7:48:22 h82
2025
27.09 103km/2stages FRADéfi Trail Du Petit Saint Bernard Ultra 17:42:40 h16
25.07 90km ITA8^ Valmalenco Ultradistance Trail 23:09:11 h136
21.06 85km FRA14ème Ardennes Méga Trail 13:06:16 h49
12.04 57km BELTDI (Trail des Idylles) 7:32:10 h42
16.03 52km FRA22ème Trail du Petit Ballon 5:57:19 h234
2024
20.10 55km FRA13ème Belfortrail 7:45:42 h50
29.06 85km FRA13ème Ardennes Méga Trail 11:57:11 h41
11.05 65km ITAUltra Trail del Lago di Como - UTLAC60 9:27:18 h25
13.04 52.4km BELTDI (Trail des Idylles) 6:27:59 h24
17.03 53km FRA21ème Trail du Petit Ballon 5:39:12 h134
2023
22.10 54km FRA12ème Belfortrail 7:24:50 h51
07.07 164km FRA2ème Grand Raid du Guillestrois et du Queyras - Ultra Tour 36:38:35 h26
24.06 85km FRA12ème Ardennes Méga Trail 11:48:42 h23
18.03 55km BELHADT Hard Aisne Durbuy Trail 6:38:50 h23
2022
09.09 450km ITA4° Tor des Glaciers 7d 00:04:32 h23
08.07 164km FRA1er Grand Raid du Guillestrois et du Queyras - Ultra Tour 38:19:08 h35
25.06 74km FRA1er Le Tour des Légendes 10:33:56 h16
2021
13.08 68.3km FRALa PicAriège 22:51:57 h63
2020
21.08 149km FRA2ème L'Échappée Belle - L'Intégrale 149km en duo 42:14:53 h11
2019
22.06 102.2km FRA10ème Ardennes Méga Trail 15:57:54 h30
21.04 70km FRATrail Des Citadelles 70km 9:10:38 h61
17.02 58km BELLa Magnetoise 7:54:56 h98
2016
09.04 75km ITABVG Trail 75km 11:27:13 h72
2015
04.07 104km FRA7ème La Montagn'Hard 104 km 23:22:50 h33
24.05 86km BEL1ère La Nocturne des 3 Plateaux 10:50:46 h7
02.05 57km FRATrail de l'Ardéchois 57 km 7:01:21 h34
2014
14.09 48km FRASerre Che Trail - Grand Tour des Cerces 9:36:38 h124
11.07 170km ANDAndorra Ultra Trail - Ronda dels cims 170 km 43:35:04 h49
22.06 60km FRA2ème Samoens Trail Tour - Tour du Haut Giffre 10:52:31 h16
03.05 60km ITA4. Gran Trail Rensen 9:35:40 h16
2013
24.11 69km BEL18ème Olne-Spa-Olne 7:01:36 h32
20.10 65km BEL5ème Ultra Tour de Liege 6:54:04 h2 🥈
05.10 98km ESP5a Ultra Trail Guara Somontano 13:56:34 h32
19.05 104.5km BELLa Balade du Bandit d'Honneur 10:44:15 h4
14.04 53km FRA15ème Le Grand Defi des Vosges 5:25:46 h9
10.03 55km FRALe Trail Bullygeois des Poilus 6:00:23 h9
09.02 65km BELLe Trail des Bosses 65 km 6:17:42 h2 🥈
2012
25.11 65km BEL17ème Olne-Spa-Olne 6:33:54 h15
19.08 65km FRALe Tour de la Grande Casse 9:52:56 h25
06.07 170km ANDAndorra Ultra Trail - Ronda dels Cims 170 km 42:56:29 h21
27.05 100km BELLa Moulinette Céleste 13:33:10 h4
12.05 46km BEL3° Grand Trail des Lacs et Châteaux - Trail des Doux Dingues 46 km 4:49:34 h4
21.04 50km BEL7e Trail La Bouillonnante 6:09:09 h39
2011
27.11 65km BEL16ème Olne-Spa-Olne 8:19:42 h142
21.10 106km FRA5ème Endurance Trail des Templiers 18:02:24 h125
28.07 180km FRATour de l'Oisans et des Ecrins 180 km Non-Stop 2d 00:28:03 h40
02.07 52km BEL3ème Trail du Tombeau du Chevalier 52 km 5:53:06 h33
12.06 100km BELLe Tour du Chalet 13:31:50 h27
30.04 50km BEL6e Trail La Bouillonnante 6:42:13 h51
19.03 50km BEL4ème L'Elchertoise 50 km 5:02:09 h39
2010
28.11 65km BEL15ème Olne-Spa-Olne 7:26:25 h81
12.09 330km ITA1° Tor des Géants - 330 km Endurance Trail della Valle d'Aosta 5d 06:49:14 h70
03.07 80km FRA1ère Ardennes Mega Trail 12:35:37 h26
25.04 50km BEL5e Trail La Bouillonnante 6:42:58 h47
2009
29.11 65km BEL14ème Olne-Spa-Olne 6:51:56 h57
17.07 201km/4stages POLLa Trace de l'Ours des Tatras 39:29:20 h11
31.05 100km BELLes Sentes de Légendes 100 km 12:39:00 h57
26.04 50km BEL4e Trail La Bouillonnante 6:33:48 h107
01.03 65km FRA6ème Le Trail aux Etoiles en Pays Viganais 8:15:36 h27
2008
30.11 65km BEL13ème Olne-Spa-Olne 7:14:31 h71
29.08 98km ITA3ème Courmayeur-Champex-Chamonix 18:09:45 h123
13.07 68km FRAMerrell Sky Race - Le Trail des Cerces 9:58:51 h182
11.05 101km BELCaracoles Célestes 12:54:45 h18
02.03 57km FRA7ème Trail de Vulcain 7:01:21 h89
2007
25.11 66km BEL12ème Olne-Spa-Olne 6:24:57 h30
2006
26.11 66km BEL11ème Olne-Spa-Olne 6:44:57 h62