Isabelle Lemasson
ID 930612
Born : 1982 Cat. W40 Ultrarunner since 2017 FRA
24
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
1
Countries visited ?GBRUnited Kingdom
47,9%
Rank quotient ?This runner's calculation uses 24 eligible race(s): Σ(rank − 1) = 2 093; Σ finishers = 4 374. 2 093 / 4 374 × 100 = 47.85%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed31
Km — ultra races2 042 km
> 100 km3
> 160 km3
> 200 km1
Longest race400,0 km
Cape Wrath Ultra — 19/5/2024

Km per year (ultra races)

273
5 races
2022
416
5 races
2023
462
2 races
2024
214
3 races
2025
50
1 race
2026

Race types (share of distance)

Trail80,4%
Stage19,6%

Records

50 km6h33'27100 km20h14'0250 mi9h55'08100 mi36h46'20

HISTORY

24 race(s)
DateRacePerf.Rk
2026
07.02 50km GBRHibernal Hills 50 km 6:33:27 h64
2025
05.04 100km GBR5th Lakes Traverse 100km 20:14:02 h126
08.03 40mi GBRBeast of the Blacks 40mi 11:27:02 h37
22.02 50km GBRDartmoor – The Winter Traverse 7:58:20 h43
2024
19.05 400km/8stages GBRCape Wrath Ultra 3d 11:02:00 h51
20.04 62km GBRTEC Lake District 62km 15:02:22 h73
2023
18.11 93km GBR7th Peak District South & North Ultra 93km 14:58:51 h33
28.07 105mi GBRLakeland 100 Mile 36:10:52 h231
24.06 32mi GBR5th Lakeland Five Passes Ultra 10:16:35 h97
20.05 53km GBR7th Maverick X Ultra Peak District 6:58:20 h103
25.02 50km GBRDartmoor – The Winter Traverse 7:18:00 h24
2022
08.10 50mi GBRLakes in a day Ultra 16:52:49 h235
30.07 53.8km GBRExmoor Trail Running Challenge 7:46:12 h41
21.05 28.5mi GBRRace The Tide 6:12:44 h27
02.04 46.5km GBRSnowdonia Trail Running Challenge 46km – Spring Crossing 8:22:14 h27
20.03 46km GBRLulworth Cove Trail Running Challenge 46km Day 2- Reverse 6:57:28 h12
2021
26.06 46km GBRBlack Mountains Trail Running Challenge 46km Day 1 6:48:42 h25
2019
26.07 100mi GBRLakeland 100 Mile 36:46:20 h173
08.06 45.1mi GBR13th Cornwall Classic Quarter Ultra Marathon 10:24:32 h88
11.05 51.8km GBRBrecon Beacons Ultra 50K 7:08:08 h58
2018
28.07 50mi GBRLakeland 50 Mile 12:18:23 h197
19.05 50mi GBR8th North Downs Way 50 Mile Race 9:55:08 h73
2017
28.07 50mi GBRLakeland 50 Mile 12:44:43 h219
18.03 33.7mi GBRCoastal Trail Series - Sussex Ultra 6:37:00 h60