Stephen O'Callaghan
ID 273097
Born : 1982 Cat. M40 Ultrarunner since 2011 UKR
27
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
39
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
59,0%
Rank quotient ?This runner's calculation uses 27 eligible race(s): Σ(rank − 1) = 4 076; Σ finishers = 6 905. 4 076 / 6 905 × 100 = 59.03%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed27
Km — ultra races1 893 km
Longest race100,0 km
8th Race to the Stones — 10/7/2021

Km per year (ultra races)

122
2 races
2022
370
5 races
2023
211
3 races
2024
130
2 races
2025
2026

Race types (share of distance)

Road5,4%
Trail94,6%

Records

50 km6h27'32100 km16h07'1650 mi10h24'04

HISTORY

27 race(s)
DateRacePerf.Rk
2025
12.04 50mi GBR13th South Downs Way 50 Mile Race 11:42:50 h280
15.03 31mi GBR3rd Hundred Hills 50km 6:27:32 h219
2024
21.09 50mi GBR9th Chiltern Wonderland 50 11:57:50 h178
13.04 50mi GBR12th South Downs Way 50 Mile Race 10:42:31 h246
16.03 31mi GBR2nd Hundred Hills 50km 6:33:32 h206
2023
16.09 50mi GBR8th Chiltern Wonderland 50 10:24:04 h65
26.08 48km GBRTEC Mendip Hills Ultramarathon 48km 6:10:22 h11
08.07 50mi GBR7th Wendover Woods 50 Mile 13:49:15 h61
20.05 50mi GBR12th North Downs Way 50 Mile Race 10:43:55 h143
08.04 50mi GBR11th South Downs Way 50 Mile Race 10:43:13 h208
2022
16.07 31mi GBR3rd Wendover Woods Night 50km 7:53:50 h119
05.03 45mi GBRWinter Green Man Ultra 45 10:16:53 h96
2021
10.07 100km GBR8th Race to the Stones 16:07:16 h656
17.04 50mi GBR9th South Downs Way 50 Mile Race 10:51:50 h223
2020
07.03 45mi GBRWinter Green Man Ultra 45 10:50:23 h115
2019
12.07 50km GBR1st Wendover Woods Night 50km 8:02:02 h100
2018
10.02 50km GBRDartmoor Ultra Marathon 7:56:11 h33
2016
06.08 50mi GBRMendip Marauder 50mi 12:55:34 h26
09.04 50mi GBR4th South Downs Way 50 Mile Race 11:09:56 h263
05.03 45mi GBRGreen Man Ultra 45 Miles 9:57:31 h101
2014
19.07 100km GBR2nd Race to the Stones 100 km Ultramarathon 16:23:46 h284
12.04 34.1mi GBRCoastal Trail Series - Exmoor Ultra 7:55:47 h63
2013
02.03 45mi GBRGreen Man Ultra 45 Miles 9:27:00 h23
2012
23.06 44mi GBR6th Cornwall Classic Quarter Ultra Marathon 11:07:56 h107
09.06 32mi GBR14th Dartmoor Discovery 32 Mile Ultra Marathon 5:35:42 h106
03.03 45mi GBRGreen Man Ultra 45 Miles 10:53:00 h25
2011
04.06 32mi GBR13th Dartmoor Discovery 32 Mile Ultra Marathon 6:30:00 h146