Colin Fitzjohn

Ultrarunner since 2005

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

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

Countries visited ?

United Kingdom

Ireland

62,0%

Rank quotient ?This runner's calculation uses 21 eligible race(s): Σ(rank − 1) = 901; Σ finishers = 1 453. 901 / 1 453 × 100 = 62.01%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed21

Km — ultra races2 727 km

> 100 km9

> 160 km5

> 200 km2

Longest race431,3 km

Spine Race — 9/1/2016

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road2,3%

Trail97,7%

Records

50 km5h24'35 50 mi10h17'45 100 mi27h40'58

HISTORY

21 race(s)

Date		Race	Perf.	Rk
2016
09.01	268mi	Spine Race	6d 19:55:00 h	11
2015
10.01	246mi	Spine Race - altered course	5d 11:30:00 h	7
2013
16.11	45mi	Beacons Ultra	11:08:51 h	121
26.10	50mi	Dusk 'til Dawn 50 Mile Ultra	14:33:00 h	56
09.09	35mi	Gritstone Grind 35 Miles	7:48:16 h	24
24.08	85mi	10th Ridgeway Challenge 85 Mile Trail Run	20:48:00 h	35
10.08	100mi	3rd North Downs Way 100 Mile Race	27:40:58 h	66
29.06	73km	10 Peaks The Lakes - Long Trail	22:02:00 h	57
18.05	50mi	Dusk ’til Dawn Sunlight 50 Mile Ultra	12:54:12 h	14
2012
27.10	50mi	Dusk 'til Dawn 50 Mile Ultra	15:21:00 h	49
25.08	85mi	9th Ridgeway Challenge 85 Mile Trail Run	23:46:00 h	53
01.06	110mi	5th Hardmoors 110	32:59:00 h	20
2010
28.08	85mi	7th Ridgeway Challenge 85 Mile Trail Run	19:43:00 h	17
23.07	100mi	Lakeland 100 Mile	37:46:19 h	51
13.02	50km	1st 50km London Ultra Trail Race	5:24:35 h	99
06.02	50mi	GB Ultra Thames Trot	10:17:45 h	94
24.01	45mi	Ultra Race 45 - Tring to Northampton	11:19:07 h	24
23.01	45mi	Ultra Race 45 - Northampton to Tring	8:59:12 h	29
16.01	45mi	GB Ultra Country to Capital	8:58:58 h	64
2009
29.08	85mi	6th Ridgeway Challenge 85 Mile Trail Run	20:23:00 h	16
2005
27.03	63.3km	2nd Connemara Int. Ultramarathon	5:50:18 h	15

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	9/1/2016	Spine Race	431,30	×9
✓ 2	10/1/2015	Spine Race - altered course	395,90	×8
✓ 3	1/6/2012	5th Hardmoors 110	177,03	×3
✓ 4	10/8/2013	3rd North Downs Way 100 Mile Race	160,93	×3
✓ 5	23/7/2010	Lakeland 100 Mile	160,93	×3
✓ 6	24/8/2013	10th Ridgeway Challenge 85 Mile Trail Run	136,79	×2
✓ 7	25/8/2012	9th Ridgeway Challenge 85 Mile Trail Run	136,79	×2
✓ 8	28/8/2010	7th Ridgeway Challenge 85 Mile Trail Run	136,79	×2
✓ 9	29/8/2009	6th Ridgeway Challenge 85 Mile Trail Run	136,79	×2
✓ 10	26/10/2013	Dusk 'til Dawn 50 Mile Ultra	80,47	×1
✓ 11	18/5/2013	Dusk ’til Dawn Sunlight 50 Mile Ultra	80,47	×1
✓ 12	27/10/2012	Dusk 'til Dawn 50 Mile Ultra	80,47	×1
✓ 13	6/2/2010	GB Ultra Thames Trot	80,47	×1
✓ 14	29/6/2013	10 Peaks The Lakes - Long Trail	73,00	×1
✓ 15	16/11/2013	Beacons Ultra	72,42	×1
✓ 16	24/1/2010	Ultra Race 45 - Tring to Northampton	72,42	×1
✓ 17	23/1/2010	Ultra Race 45 - Northampton to Tring	72,42	×1
✓ 18	16/1/2010	GB Ultra Country to Capital	72,42	×1
✓ 19	27/3/2005	2nd Connemara Int. Ultramarathon	63,30	×1
✓ 20	9/9/2013	Gritstone Grind 35 Miles	56,33	×1
✓ 21	13/2/2010	1st 50km London Ultra Trail Race	50,00	×1