David Telfer

Born : 1957 Cat. M65 Ultrarunner since 2009

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

45,1%

Rank quotient ?This runner's calculation uses 55 eligible race(s): Σ(rank − 1) = 2 388; Σ finishers = 5 290. 2 388 / 5 290 × 100 = 45.14%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed55

Km — ultra races4 839 km

> 100 km19

> 160 km3

> 24h7

Longest race164,2 km

Cotswold Way Century — 26/9/2015

Km per year (ultra races)

242

2022

2023

2024

2025

2026

Race types (share of distance)

Road2,0%

Trail98,0%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 31

🏅 Top 3 M2

Longest winning streak0

Current streak0

Records

50 km5h31'00 50 mi10h31'35 100 mi23h52'25 6 h50,05 km 24 h144,84 km

HISTORY

55 race(s)

Date		Race	Perf.	Rk
2022
27.12	50km	6th Winter Cross Ultra 50km	6:00:25 h	72
27.08	86mi	18th Ridgeway Challenge 86 Mile Trail Run	23:44:01 h	27
06.03	33mi	The Imber Ultra	5:40:22 h	48
2021
28.12	70km	5th Winter Cross Ultra 70km	8:29:20 h	29
16.10	50km	Run to the Sea: Bournemouth	5:31:00 h	164
28.08	86mi	17th Ridgeway Challenge 86 Mile Trail Run	22:58:29 h	62
22.05	50mi	4th Ox 50 Mile	11:34:07 h	29
01.04	6h	April Fools Day Challenge	50.050 km	7
2020
08.03	33mi	The Imber Ultra	6:21:05 h	65
2019
28.12	45mi	4th Winter Cross Ultra 45mi	8:39:39 h	50
12.12	6h	Dinton Christmas Challenge	47.797 km	9
24.08	86mi	16th Ridgeway Challenge 86 Mile Trail Run	24:54:55 h	68
03.08	52.5km	Round Reading Ultra Marathon 50km	5:35:58 h	54
03.03	33mi	The Imber Ultra	6:16:04 h	64
2018
27.12	45mi	3rd Winter Cross Ultra 45mi	9:03:48 h	43
25.08	86mi	Ridgeway Challenge - UK Ultra Distance Trail Running Championships	21:26:00 h	36
04.08	24h	Cotswold 24 Hour Race	81.000 km	71
16.06	24h	Henley 24 Hour Race	144.000 km	15
11.03	33mi	The Imber Ultra	6:16:13 h	68
27.01	40mi	Winter Wychavon Way	8:36:33 h	67
2017
26.08	86mi	Ridgeway Challenge - UK Ultra Distance Trail Running Championships	22:45:00 h	50
22.07	24h	Cotswold 24 Hour Race	63.000 km	102
20.05	50mi	Westcountry Flat Ultra 50 Miler	10:31:35 h	20
06.05	33mi	12th Marlborough Downs Challenge 33	6:18:13 h	56
05.03	33mi	The Imber Ultra	6:14:36 h	42
2016
28.12	45mi	1st Winter Cross Ultra 45mi	8:31:49 h	25
27.08	86mi	13th Ridgeway Challenge 86 Mile Trail Run	21:48:00 h	32
23.07	24h	Cotswold 24 Hour Race	135.000 km	15
11.06	24h	Endure 24 hour run	144.840 km	18
15.05	33mi	11th Marlborough Downs Challenge	5:57:01 h	51
30.04	40mi	Oxon 40 Mile	7:30:00 h	5
06.03	33mi	The Imber Ultra	5:46:42 h	38
2015
26.09	102mi	Cotswold Way Century	29:43:00 h	57
29.08	86mi	12th Ridgeway Challenge 86 Mile Trail Run	20:53:00 h	41
13.06	24h	Endure 24 hour run	144.840 km	30
10.05	33mi	Marlborough Downs Challenge	5:36:46 h	53
02.05	40mi	Oxon 40 Mile	7:27:00 h	3 🥉
04.04	40mi	19th Compton Downland Challenge	7:22:29 h	36
08.03	33mi	The Imber Ultra	5:25:46 h	24
2014
23.08	85mi	11th Ridgeway Challenge 85 Mile Trail Run	21:45:00 h	33
28.06	24h	Endure 24 hour run	136.794 km	22
10.05	33mi	Marlborough Downs Challenge	5:43:05 h	38
03.05	40mi	Oxon 40 Mile	8:37:00 h	13
06.03	33mi	The Imber Ultra	5:31:36 h	35
2013
24.08	85mi	10th Ridgeway Challenge 85 Mile Trail Run	22:47:00 h	53
28.06	100mi	Cotswold 100 Mile Ultra	23:52:25 h	17
12.05	33mi	Marlborough Downs Challenge	5:32:02 h	48
04.05	40mi	Oxon 40 Mile	9:20:00 h	10
2012
12.05	33mi	Marlborough Downs Challenge	5:59:55 h	58
03.03	100mi	1st Thames Path 100	28:19:30 h	112
2011
27.08	85mi	8th Ridgeway Challenge 85 Mile Trail Run	20:23:00 h	23
14.05	33mi	Marlborough Downs Challenge	5:30:13 h	48
2010
15.05	33mi	Marlborough Downs Challenge	5:41:11 h	47
2009
29.08	85mi	6th Ridgeway Challenge 85 Mile Trail Run	23:26:00 h	43
16.05	33mi	4th Marlborough Downs Challenge	6:29:46 h	97

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	26/9/2015	Cotswold Way Century	164,15	×3
✓ 2	28/6/2013	Cotswold 100 Mile Ultra	160,93	×3
✓ 3	3/3/2012	1st Thames Path 100	160,93	×3
✓ 4	11/6/2016	Endure 24 hour run	144,84	×2
✓ 5	13/6/2015	Endure 24 hour run	144,84	×2
✓ 6	16/6/2018	Henley 24 Hour Race	144,00	×2
✓ 7	27/8/2022	18th Ridgeway Challenge 86 Mile Trail Run	138,40	×2
✓ 8	28/8/2021	17th Ridgeway Challenge 86 Mile Trail Run	138,40	×2
✓ 9	24/8/2019	16th Ridgeway Challenge 86 Mile Trail Run	138,40	×2
✓ 10	25/8/2018	Ridgeway Challenge - UK Ultra Distance Trail Running Championships	138,40	×2
✓ 11	26/8/2017	Ridgeway Challenge - UK Ultra Distance Trail Running Championships	138,40	×2
✓ 12	27/8/2016	13th Ridgeway Challenge 86 Mile Trail Run	138,40	×2
✓ 13	29/8/2015	12th Ridgeway Challenge 86 Mile Trail Run	138,40	×2
✓ 14	23/8/2014	11th Ridgeway Challenge 85 Mile Trail Run	136,79	×2
✓ 15	24/8/2013	10th Ridgeway Challenge 85 Mile Trail Run	136,79	×2
✓ 16	27/8/2011	8th Ridgeway Challenge 85 Mile Trail Run	136,79	×2
✓ 17	29/8/2009	6th Ridgeway Challenge 85 Mile Trail Run	136,79	×2
✓ 18	28/6/2014	Endure 24 hour run	136,79	×2
✓ 19	23/7/2016	Cotswold 24 Hour Race	135,00	×2
✓ 20	4/8/2018	Cotswold 24 Hour Race	81,00	×1
✓ 21	22/5/2021	4th Ox 50 Mile	80,47	×1
✓ 22	20/5/2017	Westcountry Flat Ultra 50 Miler	80,47	×1
✓ 23	28/12/2019	4th Winter Cross Ultra 45mi	72,42	×1
✓ 24	27/12/2018	3rd Winter Cross Ultra 45mi	72,42	×1
✓ 25	28/12/2016	1st Winter Cross Ultra 45mi	72,42	×1
✓ 26	28/12/2021	5th Winter Cross Ultra 70km	70,00	×1
✓ 27	27/1/2018	Winter Wychavon Way	64,37	×1
✓ 28	30/4/2016	Oxon 40 Mile	64,37	×1
✓ 29	2/5/2015	Oxon 40 Mile	64,37	×1
✓ 30	4/4/2015	19th Compton Downland Challenge	64,37	×1
✓ 31	3/5/2014	Oxon 40 Mile	64,37	×1
✓ 32	4/5/2013	Oxon 40 Mile	64,37	×1
✓ 33	22/7/2017	Cotswold 24 Hour Race	63,00	×1
✓ 34	6/3/2022	The Imber Ultra	53,11	×1
✓ 35	8/3/2020	The Imber Ultra	53,11	×1
✓ 36	3/3/2019	The Imber Ultra	53,11	×1
✓ 37	11/3/2018	The Imber Ultra	53,11	×1
✓ 38	6/5/2017	12th Marlborough Downs Challenge 33	53,11	×1
✓ 39	5/3/2017	The Imber Ultra	53,11	×1
✓ 40	15/5/2016	11th Marlborough Downs Challenge	53,11	×1
✓ 41	6/3/2016	The Imber Ultra	53,11	×1
✓ 42	10/5/2015	Marlborough Downs Challenge	53,11	×1
✓ 43	8/3/2015	The Imber Ultra	53,11	×1
✓ 44	10/5/2014	Marlborough Downs Challenge	53,11	×1
✓ 45	6/3/2014	The Imber Ultra	53,11	×1
✓ 46	12/5/2013	Marlborough Downs Challenge	53,11	×1
✓ 47	12/5/2012	Marlborough Downs Challenge	53,11	×1
✓ 48	14/5/2011	Marlborough Downs Challenge	53,11	×1
✓ 49	15/5/2010	Marlborough Downs Challenge	53,11	×1
✓ 50	16/5/2009	4th Marlborough Downs Challenge	53,11	×1
✓ 51	3/8/2019	Round Reading Ultra Marathon 50km	52,50	—
52	1/4/2021	April Fools Day Challenge	50,05	—
53	27/12/2022	6th Winter Cross Ultra 50km	50,00	—
54	16/10/2021	Run to the Sea: Bournemouth	50,00	—
55	12/12/2019	Dinton Christmas Challenge	47,80	—