Shaun Marsden
ID 443760
Born : 1981 Cat. M45 Ultrarunner since 2013 GBR
25
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
47
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 ?GBRUnited KingdomMARMoroccoUSAUnited States
33,7%
Rank quotient ?This runner's calculation uses 25 eligible race(s): Σ(rank − 1) = 2 158; Σ finishers = 6 396. 2 158 / 6 396 × 100 = 33.74%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed43
Km — ultra races2 677 km
> 100 km9
> 160 km5
> 200 km3
Longest race249,0 km
30. Marathon des Sables — 5/4/2015

Km per year (ultra races)

2022
50
1 race
2023
2024
50
1 race
2025
2026

Race types (share of distance)

Road6,0%
Trail48,5%
Stage45,4%

Records

50 km4h25'08100 km9h50'2250 mi8h16'26100 mi24h10'18

HISTORY

25 race(s)
DateRacePerf.Rk
2025
15.03 31mi GBR3rd Hundred Hills 50km 6:04:20 h169
2023
17.12 50km GBRPortsmouth Coastal Waterside 50K 4:59:46 h73
2018
19.05 100mi USA11th Keys100 Ultra-Marathons 100mi 25:55:40 h57
08.04 237km/6stages MAR33. Marathon des Sables Maroc 39:24:28 h361
10.03 50km GBRHumanity Direct Amersham Ultra 5:29:03 h37
2017
09.09 100km GBRThames Path Challenge 9:50:22 h6
17.06 37.5mi GBRTsunami Ultra 8:41:06 h7
29.04 97mi/3stages GBRThe South Downs Way Devil's Challenge 17:18:28 h7
2016
26.11 50mi GBR1st Wendover Woods 50 10:56:37 h42
17.09 50mi GBR1st Chiltern Wonderland 50 Mile Race 8:37:22 h25
14.05 50mi GBR6th North Downs Way 50 Mile Race 8:43:03 h27
09.04 50mi GBR4th South Downs Way 50 Mile Race 8:16:26 h31
2015
20.12 50km GBRPortsmouth Coastal Waterside 50K 4:25:08 h49
15.08 100km GBRStour Valley Path 100km Ultra Run 13:09:20 h44
05.04 249km/6stages MAR30. Marathon des Sables 2d 08:23:57 h955
31.01 66mi/2stages GBRPilgrim Challenge North Downs Way Multistage Ultra 11:28:18 h23
17.01 45mi GBRGB Ultra Country to Capital 6:16:20 h18
2014
18.10 100mi GBR3rd Winter 100 Mile Races 24:10:18 h48
29.08 135mi/3stages GBR3rd Ring O' Fire - Anglesey 135 Mile Ultra Coastal Marathon 31:47:00 h21
02.08 77km GBRRound the Rock Jersey 48 Miles 9:15:22 h30
19.07 31mi GBRThe 'Chiltern Ultra Challenge' Intro 50km Ultra 6:12:00 h53
17.05 50mi GBR4th North Downs Way 50 Mile Race 9:03:39 h21
01.02 66mi/2stages GBRPilgrim Challenge North Downs Way Multistage Ultra 11:16:56 h14
2013
20.09 90mi/3stages GBRThe 'Toad Challenge' Thames Path Multistage Ultra 15:42:46 h9
03.08 77km GBRRound the Rock Jersey 48 Miles 10:37:30 h56