Karen Riddle

Born : 1953 Cat. W70 Ultrarunner since 2000

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 States

75,7%

Rank quotient ?This runner's calculation uses 78 eligible race(s): Σ(rank − 1) = 7 009; Σ finishers = 9 255. 7 009 / 9 255 × 100 = 75.73%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed78

Km — ultra races6 989 km

> 100 km24

> 160 km7

> 200 km1

> 24h31

> 48h9

Longest race500,0 km

9th Last Annual Vol-State 500K Endurance Run — 10/7/2014

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road67,8%

Trail32,2%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F3

🏅 Top 30

🏅 Top 3 F7

Longest winning streak0

Current streak0

Records

50 km6h40'09 50 mi11h28'10 100 mi28h40'35 12 h83,62 km 24 h135,59 km 48 h183,95 km

HISTORY

78 race(s) · 1 split(s) nested

Date		Race	Perf.	Rk
2021
08.09	89h	7th A Race for the Ages	82.076 km	68
2019
30.12	55h	7th Snowdrop Ultra 55 Hour Race	88.887 km	137
07.12	24h	3rd Perpetual Motion 24 Hour Race	64.584 km	17
28.08	87h	5th A Race for the Ages	117.482 km	101
2018
30.12	55h	6th Snowdrop Ultra 55 Hour Race	160.934 km	45
2017
31.08	83h	3rd A Race for the Ages	136.794 km	83
2016
30.12	55h	4th Snowdrop Ultra 55 Hour Race	116.564 km	107
14.05	12h	6th Mind The Ducks 12 Hour Run	50.488 km	114
02.04	50mi	4th Prairie Spirit 50 Mile Trail Ultra Race	15:10:50 h	37
12.03	50km	1st The Mid South (Land Run) 50K Ultra Marathon	8:14:51 h	24
2015
30.12	55h	3rd Snowdrop Ultra 55 Hour Race	179.119 km	21
30.12	100mi	3rd Snowdrop Ultra 55 Hour Race - 100mi Split	43:33:07 h	53
14.11	24h	9th KUS 24 Hour Ultramarathon	52.384 km	13
24.10	12h	7th Double Dirty Dozen - 12 hour	53.108 km	5
04.09	84h	1st A Race for the Ages	120.700 km	124
28.03	50mi	3rd Prairie Spirit 50 Mile Trail Ultra Race	14:57:53 h	102
2014
22.11	12h	14th Ultracentric 12 Hour Run	51.499 km	16
10.07	500km	9th Last Annual Vol-State 500K Endurance Run	7d 19:40:06 h	38
31.05	40mi	1st Flint Hills Trail 40 Mile	10:19:02 h	54
29.03	50mi	2nd Prairie Spirit 50 Mile Trail Ultra Race	14:02:23 h	65
14.03	24h	5th Howard Aslinger 24 Hour Endurance Run	80.763 km	23
10.02	50mi	1st Heartland 50 Mile Race	13:39:18 h	32
2013
26.04	100mi	3rd Salt Flats 100 Mile	35:49:35 h	37
24.02	50km	6th The Cowtown Marathon	7:37:12 h	394
20.01	50km	2nd The Duel Paved	8:27:44 h	6
19.01	50km	1st The Duel Dirt	9:48:58 h	20
2012
16.11	48h	12th Ultracentric 48 Hour Run	183.948 km	10
27.10	24h	4th Double Dirty Dozen - 24 hour	83.685 km	8
29.09	8h	4th 8 Hour Run from the Ducks Ultra-marathon	51.981 km	7
22.09	24h	5th North Coast 24 Hour Endurance Run	76.647 km	80
28.04	24h	1st O24 - Outrun 24h Trail Run	95.182 km	20
26.02	50km	5th The Cowtown Marathon	6:55:01 h	289
22.01	50km	1st The Duel Paved	7:36:21 h	17
2011
19.11	24h	11th Ultracentric 24 Hour Run	122.310 km	9
22.10	12h	3rd 12H The Hard Way	71.195 km	22
24.09	8h	3rd 8 Hour Run from the Ducks Ultra-marathon	46.928 km	28
17.09	24h	North Coast 24 Hour Endurance Run - USATF Nat. Championchips	121.859 km	61
17.09	24h	3rd North Coast 24 Hour Endurance Run - Open race	121.859 km	92
26.02	50km	4th The Cowtown Marathon	7:04:42 h	217
2010
06.11	100mi	3rd Mother Road 100 Mile	28:40:35 h	102
09.10	50mi	11th Heartland 50 Mile Race	13:41:09 h	24
25.09	8h	2nd 8 Hour Run from the Ducks Ultra-marathon	49.477 km	21
18.09	24h	2nd North Coast 24 Hour Endurance Run	113.552 km	88
15.05	12h	1st Mind The Ducks 12 Hour Run	83.623 km	16
27.02	50km	3rd The Cowtown Marathon	6:40:09 h	164
2009
21.11	24h	9th Ultracentric 24 Hour Run	81.915 km	10
24.10	24h	1st 24H The Hard Way	121.550 km	14
26.09	8h	1st 8 Hour Run from the Ducks Ultra-marathon	52.528 km	22
06.06	24h	20th FANS 24 Hour Runs	68.912 km	80
19.05	50km	4th Jemez Mountain 50km Trail Run	15:08:00 h	96
28.02	50km	2nd The Cowtown Marathon	6:49:43 h	116
2008
08.11	100mi	2nd Mother Road 100 Mile	28:50:11 h	83
18.10	50km	24th Palo Duro 50 km Trail Run	8:15:28 h	86
11.10	50mi	9th Heartland 50 Mile Race	12:45:13 h	28
03.05	24h	27th Cornbelt Running Club 24 Hour Run	115.035 km	11
2007
08.12	50km	18th Sunmart Texas Trails 50 km	8:08:24 h	406
17.11	24h	7th Ultracentric 24 Hour Run	115.872 km	46
20.10	50km	23rd Palo Duro 50 km Trail Run	9:07:21 h	77
31.03	50mi	13th Umstead Endurance Run 50 Miles	13:31:14 h	92
04.03	50km	A-OK Trail Run	7:25:10 h	19
2006
18.11	24h	6th Ultracentric 24 Hour Run	110.851 km	46
14.10	50mi	7th Heartland 50 Mile Race	12:53:56 h	34
2005
03.12	50km	16th Sunmart Texas Trails 50 km	7:37:16 h	439
26.11	24h	5th Ultracentric 24 Hour Run	77.184 km	20
02.04	50mi	11th Umstead Endurance Run 50 Miles	14:23:19 h	101
05.02	50mi	13th Rocky Raccoon 50 Mile Trail Run	13:42:17 h	50
2004
04.12	50km	15th Sunmart Texas Trails 50 km	7:32:27 h	486
27.11	24h	4th Ultracentric 24 Hour Run	135.587 km	8
16.10	50km	20th Palo Duro 50 km Trail Run	7:38:48 h	59
11.09	24h	14th Olander Park 24 Hour Run	111.769 km	45
03.04	50mi	10th Umstead Endurance Run 50 Miles	13:21:14 h	83
2003
13.09	24h	13th Olander Park 24 Hour Run	101.244 km	70
22.03	50mi	4th Grasslands 50 Mile Trail Run	11:38:51 h	50
01.03	24h	2nd Houston Ultra Event Weekend 24h	116.339 km	9
2002
07.12	50km	13th Sunmart Texas Trails 50 km	6:54:34 h	442
14.09	24h	12th Olander Park 24 Hour Run	108.859 km	97
2001
01.12	50km	12th Sunmart Texas Trails 50 km	7:13:26 h	481
2000
02.12	50km	11th Sunmart Texas Trails 50 km	6:50:54 h	409
25.03	50mi	2nd Grasslands 50 Mile Trail Run	11:28:10 h	14

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	10/7/2014	9th Last Annual Vol-State 500K Endurance Run	500,00	×7
✓ 2	16/11/2012	12th Ultracentric 48 Hour Run	183,95	×2
✓ 3	30/12/2015	3rd Snowdrop Ultra 55 Hour Race	179,12	×2
✓ 4	26/4/2013	3rd Salt Flats 100 Mile	160,93	×2
✓ 5	6/11/2010	3rd Mother Road 100 Mile	160,93	×2
✓ 6	8/11/2008	2nd Mother Road 100 Mile	160,93	×2
✓ 7	30/12/2018	6th Snowdrop Ultra 55 Hour Race	160,93	×2
✓ 8	31/8/2017	3rd A Race for the Ages	136,79	×2
✓ 9	27/11/2004	4th Ultracentric 24 Hour Run	135,59	×2
✓ 10	19/11/2011	11th Ultracentric 24 Hour Run	122,31	×1
✓ 11	17/9/2011	North Coast 24 Hour Endurance Run - USATF Nat. Championchips	121,86	×1
✓ 12	24/10/2009	1st 24H The Hard Way	121,55	×1
✓ 13	4/9/2015	1st A Race for the Ages	120,70	×1
✓ 14	28/8/2019	5th A Race for the Ages	117,48	×1
✓ 15	30/12/2016	4th Snowdrop Ultra 55 Hour Race	116,56	×1
✓ 16	1/3/2003	2nd Houston Ultra Event Weekend 24h	116,34	×1
✓ 17	17/11/2007	7th Ultracentric 24 Hour Run	115,87	×1
✓ 18	3/5/2008	27th Cornbelt Running Club 24 Hour Run	115,04	×1
✓ 19	18/9/2010	2nd North Coast 24 Hour Endurance Run	113,55	×1
✓ 20	11/9/2004	14th Olander Park 24 Hour Run	111,77	×1
✓ 21	18/11/2006	6th Ultracentric 24 Hour Run	110,85	×1
✓ 22	14/9/2002	12th Olander Park 24 Hour Run	108,86	×1
✓ 23	13/9/2003	13th Olander Park 24 Hour Run	101,24	×1
✓ 24	28/4/2012	1st O24 - Outrun 24h Trail Run	95,18	×1
✓ 25	30/12/2019	7th Snowdrop Ultra 55 Hour Race	88,89	×1
✓ 26	27/10/2012	4th Double Dirty Dozen - 24 hour	83,69	×1
✓ 27	15/5/2010	1st Mind The Ducks 12 Hour Run	83,62	×1
✓ 28	8/9/2021	7th A Race for the Ages	82,08	×1
✓ 29	21/11/2009	9th Ultracentric 24 Hour Run	81,92	×1
✓ 30	14/3/2014	5th Howard Aslinger 24 Hour Endurance Run	80,76	×1
✓ 31	2/4/2016	4th Prairie Spirit 50 Mile Trail Ultra Race	80,47	×1
✓ 32	28/3/2015	3rd Prairie Spirit 50 Mile Trail Ultra Race	80,47	×1
✓ 33	29/3/2014	2nd Prairie Spirit 50 Mile Trail Ultra Race	80,47	×1
✓ 34	10/2/2014	1st Heartland 50 Mile Race	80,47	×1
✓ 35	9/10/2010	11th Heartland 50 Mile Race	80,47	×1
✓ 36	11/10/2008	9th Heartland 50 Mile Race	80,47	×1
✓ 37	31/3/2007	13th Umstead Endurance Run 50 Miles	80,47	×1
✓ 38	14/10/2006	7th Heartland 50 Mile Race	80,47	×1
✓ 39	2/4/2005	11th Umstead Endurance Run 50 Miles	80,47	×1
✓ 40	5/2/2005	13th Rocky Raccoon 50 Mile Trail Run	80,47	×1
✓ 41	3/4/2004	10th Umstead Endurance Run 50 Miles	80,47	×1
✓ 42	22/3/2003	4th Grasslands 50 Mile Trail Run	80,47	×1
✓ 43	25/3/2000	2nd Grasslands 50 Mile Trail Run	80,47	×1
✓ 44	26/11/2005	5th Ultracentric 24 Hour Run	77,18	×1
✓ 45	22/9/2012	5th North Coast 24 Hour Endurance Run	76,65	×1
✓ 46	22/10/2011	3rd 12H The Hard Way	71,20	×1
✓ 47	6/6/2009	20th FANS 24 Hour Runs	68,91	×1
✓ 48	7/12/2019	3rd Perpetual Motion 24 Hour Race	64,58	×1
✓ 49	31/5/2014	1st Flint Hills Trail 40 Mile	64,37	×1
✓ 50	24/10/2015	7th Double Dirty Dozen - 12 hour	53,11	—
✓ 51	26/9/2009	1st 8 Hour Run from the Ducks Ultra-marathon	52,53	—
✓ 52	14/11/2015	9th KUS 24 Hour Ultramarathon	52,38	—
53	29/9/2012	4th 8 Hour Run from the Ducks Ultra-marathon	51,98	—
54	22/11/2014	14th Ultracentric 12 Hour Run	51,50	—
55	14/5/2016	6th Mind The Ducks 12 Hour Run	50,49	—
56	12/3/2016	1st The Mid South (Land Run) 50K Ultra Marathon	50,00	—
57	24/2/2013	6th The Cowtown Marathon	50,00	—
58	20/1/2013	2nd The Duel Paved	50,00	—
59	19/1/2013	1st The Duel Dirt	50,00	—
60	26/2/2012	5th The Cowtown Marathon	50,00	—
61	22/1/2012	1st The Duel Paved	50,00	—
62	26/2/2011	4th The Cowtown Marathon	50,00	—
63	27/2/2010	3rd The Cowtown Marathon	50,00	—
64	19/5/2009	4th Jemez Mountain 50km Trail Run	50,00	—
65	28/2/2009	2nd The Cowtown Marathon	50,00	—
66	18/10/2008	24th Palo Duro 50 km Trail Run	50,00	—
67	8/12/2007	18th Sunmart Texas Trails 50 km	50,00	—
68	20/10/2007	23rd Palo Duro 50 km Trail Run	50,00	—
69	4/3/2007	A-OK Trail Run	50,00	—
70	3/12/2005	16th Sunmart Texas Trails 50 km	50,00	—
71	4/12/2004	15th Sunmart Texas Trails 50 km	50,00	—
72	16/10/2004	20th Palo Duro 50 km Trail Run	50,00	—
73	7/12/2002	13th Sunmart Texas Trails 50 km	50,00	—
74	1/12/2001	12th Sunmart Texas Trails 50 km	50,00	—
75	2/12/2000	11th Sunmart Texas Trails 50 km	50,00	—
76	25/9/2010	2nd 8 Hour Run from the Ducks Ultra-marathon	49,48	—
77	24/9/2011	3rd 8 Hour Run from the Ducks Ultra-marathon	46,93	—