David Anthony Ralphs

Born : 1960 Cat. M65 Ultrarunner since 2008

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 ?

France

United Kingdom

Germany

Italy

38,8%

Rank quotient ?This runner's calculation uses 48 eligible race(s): Σ(rank − 1) = 7 368; Σ finishers = 19 010. 7 368 / 19 010 × 100 = 38.76%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed48

Km — ultra races4 166 km

> 100 km11

> 160 km7

Longest race169,0 km

Lakeland 100 Mile — 26/7/2024

Km per year (ultra races)

241

2022

2023

169

2024

2025

2026

Race types (share of distance)

Trail100,0%

Records

100 km24h11'05 50 mi8h51'10 100 mi27h20'05

HISTORY

48 race(s)

Date		Race	Perf.	Rk
2024
26.07	105mi	Lakeland 100 Mile	38:09:14 h	312
2022
01.10	50mi	39th Rowbotham's Round Rotherham	11:42:23 h	34
29.07	100mi	Lakeland 100 Mile	39:29:21 h	291
2021
09.10	50mi	38th Rowbotham's Round Rotherham	10:50:33 h	38
23.07	100mi	Lakeland 100 Mile	37:51:24 h	252
2019
26.07	100mi	Lakeland 100 Mile	37:48:53 h	194
27.04	61mi	57th The Fellsman	22:20:00 h	153
13.04	40mi	41st Calderdale Hike 40 Miles	9:13:00 h	43
2018
28.07	50mi	Lakeland 50 Mile	13:29:06 h	307
19.05	37mi	Old County Tops Fell Race	10:56:22 h	169
28.04	61mi	56th The Fellsman	22:18:00 h	158
2017
28.07	50mi	Lakeland 50 Mile	11:43:23 h	145
17.06	101km	7. Zugspitz Ultratrail	24:11:05 h	347
20.05	37mi	Old County Tops Fell Race	11:27:24 h	175
2016
17.09	60mi	Hardmoors 60	14:52:50 h	85
26.08	101km	11ème Courmayeur-Champex-Chamonix	26:03:00 h	1231
21.05	37mi	Old County Tops Fell Race	10:26:13 h	123
30.04	61mi	54th The Fellsman	17:40:00 h	52
12.03	31.7mi	Haworth Hobble 32 Miles	5:36:33 h	62
2015
19.09	60mi	Hardmoors 60	16:38:41 h	123
24.07	50mi	Lakeland 50 Mile	13:19:25 h	244
16.05	37mi	Old County Tops Fell Race	10:02:26 h	131
10.05	33mi	Marlborough Downs Challenge	6:09:32 h	84
25.04	61mi	53rd The Fellsman	15:37:00 h	55
11.04	37mi	37th Calderdale Hike 37 Miles	8:47:00 h	43
14.03	32mi	Haworth Hobble 32 Miles	6:37:53 h	230
2014
29.08	168km	12ème Ultra Trail Tour du Mont Blanc	36:25:07 h	358
17.05	37mi	Old County Tops Fell Race	8:55:42 h	47
26.04	61mi	52nd The Fellsman	15:39:00 h	44
12.04	37mi	36th Calderdale Hike 37 Miles	6:57:00 h	15
15.03	32mi	Haworth Hobble 32 Miles	5:20:25 h	72
2012
31.08	103.4km trail race	10ème Ultra Trail Tour du Mont Blanc (UTMB)	17:38:42 h	414
27.07	100mi	Lakeland 100 Mile	27:20:05 h	16
19.05	37mi	Old County Tops Fell Race	9:06:30 h	49
2011
25.08	110km	2ème Sur les Traces des Ducs de Savoie	23:53:22 h	193
14.05	33mi	Marlborough Downs Challenge	4:49:51 h	11
19.03	55mi	Hardmoors 55	9:59:00 h	15
12.03	32mi	Haworth Hobble 32 Miles	4:48:50 h	22
2010
16.10	50mi	28th Rowbotham's Round Rotherham	8:51:10 h	42
28.08	89km	8ème Ultra Trail Tour du Mont Blanc	15:21:52 h	147
15.05	33mi	Marlborough Downs Challenge	4:53:28 h	16
13.03	32mi	Haworth Hobble 32 Miles	4:51:09 h	27
2009
28.08	166km	7ème Ultra Trail Tour du Mont Blanc	38:58:36 h	488
16.05	37mi	Old County Tops Fell Race	8:42:00 h	19
14.03	32mi	Haworth Hobble 32 Miles	6:55:41 h	196
2008
12.12	50mi	26th Rowbotham's Round Rotherham	9:24:58 h	31
17.05	37mi	Old County Tops Fell Race	9:02:00 h	45
15.03	32mi	Haworth Hobble 32 Miles	5:24:49 h	68

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	26/7/2024	Lakeland 100 Mile	168,98	×3
✓ 2	29/8/2014	12ème Ultra Trail Tour du Mont Blanc (UTMB)	168,00	×3
✓ 3	28/8/2009	7ème Ultra Trail Tour du Mont Blanc (UTMB)	166,00	×3
✓ 4	29/7/2022	Lakeland 100 Mile	160,93	×3
✓ 5	23/7/2021	Lakeland 100 Mile	160,93	×3
✓ 6	26/7/2019	Lakeland 100 Mile	160,93	×3
✓ 7	27/7/2012	Lakeland 100 Mile	160,93	×3
✓ 8	25/8/2011	2ème Sur les Traces des Ducs de Savoie (TDS)	110,00	×2
✓ 9	31/8/2012	10ème Ultra Trail Tour du Mont Blanc (UTMB) (FRA)	103,40	×1
✓ 10	17/6/2017	7. Zugspitz Ultratrail	101,00	×1
✓ 11	26/8/2016	11ème Courmayeur-Champex-Chamonix (CCC)	101,00	×1
✓ 12	27/4/2019	57th The Fellsman	98,17	×1
✓ 13	28/4/2018	56th The Fellsman	98,17	×1
✓ 14	30/4/2016	54th The Fellsman	98,17	×1
✓ 15	25/4/2015	53rd The Fellsman	98,17	×1
✓ 16	26/4/2014	52nd The Fellsman	98,17	×1
✓ 17	17/9/2016	Hardmoors 60	96,56	×1
✓ 18	19/9/2015	Hardmoors 60	96,56	×1
✓ 19	28/8/2010	8ème Ultra Trail Tour du Mont Blanc (UTMB)	89,00	×1
✓ 20	19/3/2011	Hardmoors 55	88,51	×1
✓ 21	1/10/2022	39th Rowbotham's Round Rotherham	80,47	×1
✓ 22	9/10/2021	38th Rowbotham's Round Rotherham	80,47	×1
✓ 23	28/7/2018	Lakeland 50 Mile	80,47	×1
✓ 24	28/7/2017	Lakeland 50 Mile	80,47	×1
✓ 25	24/7/2015	Lakeland 50 Mile	80,47	×1
✓ 26	16/10/2010	28th Rowbotham's Round Rotherham	80,47	×1
✓ 27	12/12/2008	26th Rowbotham's Round Rotherham	80,47	×1
✓ 28	13/4/2019	41st Calderdale Hike 40 Miles	64,37	×1
✓ 29	19/5/2018	Old County Tops Fell Race	59,55	×1
✓ 30	20/5/2017	Old County Tops Fell Race	59,55	×1
✓ 31	21/5/2016	Old County Tops Fell Race	59,55	×1
✓ 32	16/5/2015	Old County Tops Fell Race	59,55	×1
✓ 33	11/4/2015	37th Calderdale Hike 37 Miles	59,55	×1
✓ 34	17/5/2014	Old County Tops Fell Race	59,55	×1
✓ 35	12/4/2014	36th Calderdale Hike 37 Miles	59,55	×1
✓ 36	19/5/2012	Old County Tops Fell Race	59,55	×1
✓ 37	16/5/2009	Old County Tops Fell Race	59,55	×1
✓ 38	17/5/2008	Old County Tops Fell Race	59,55	×1
✓ 39	10/5/2015	Marlborough Downs Challenge	53,11	×1
✓ 40	14/5/2011	Marlborough Downs Challenge	53,11	×1
✓ 41	15/5/2010	Marlborough Downs Challenge	53,11	×1
✓ 42	14/3/2015	Haworth Hobble 32 Miles	51,50	—
✓ 43	15/3/2014	Haworth Hobble 32 Miles	51,50	—
✓ 44	12/3/2011	Haworth Hobble 32 Miles	51,50	—
✓ 45	13/3/2010	Haworth Hobble 32 Miles	51,50	—
✓ 46	14/3/2009	Haworth Hobble 32 Miles	51,50	—
✓ 47	15/3/2008	Haworth Hobble 32 Miles	51,50	—
✓ 48	12/3/2016	Haworth Hobble 32 Miles	51,02	—