Karen Helfrich

Born : 1967 Cat. W55 Ultrarunner since 2004

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

75,3%

Rank quotient ?This runner's calculation uses 74 eligible race(s): Σ(rank − 1) = 7 665; Σ finishers = 10 179. 7 665 / 10 179 × 100 = 75.30%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed74

Km — ultra races6 921 km

> 100 km19

> 160 km19

> 200 km2

> 24h1

Longest race383,0 km

8th Moab 240 Endurance Run — 11/10/2024

Km per year (ultra races)

729

2022

308

2023

493

2024

180

2025

130

2026

Race types (share of distance)

Road0,7%

Trail99,3%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F1

🏅 Top 30

🏅 Top 3 F4

Longest winning streak0

Current streak0

Records

50 km6h39'09 50 mi13h21'50 100 mi31h16'22 24 h46,67 km

HISTORY

74 race(s)

Date		Race	Perf.	Rk
2026
15.08	50mi	7th White Pine 50 Mile Backcountry Run	15:10:58 h	107
07.03	50km	17th Red Mountain 50K	7:56:28 h	110
2025
16.08	50mi	6th White Pine 50 Mile Backcountry Run	16:20:12 h	107
14.06	50km	4th The Kan 50km	8:41:07 h	61
01.03	50km	16th Red Mountain 50K	8:05:57 h	93
2024
11.10	238mi	8th Moab 240 Endurance Run	4d 16:30:33 h	101
10.08	55km	10th Skyline Mountain Marathon 55K	12:20:19 h	63
02.03	55km	15th Red Mountain 55K	7:40:52 h	96
2023
26.08	50mi	6th UTE 50 Mile Trail Race	23:35:05 h	42
12.08	55km	9th Skyline Mountain Marathon 55K	10:31:33 h	68
29.07	70km	9th Tushars 70km Mountain Runs	19:50:40 h	86
15.04	48km	20th Desert Rats Trail Running Festival 50 km	8:02:55 h	252
04.03	55km	14th Red Mountain 55K	8:45:15 h	74
2022
07.10	238mi	6th Moab 240 Endurance Run	4d 03:37:20 h	83
12.08	100mi	5th UTE 100 Mile Trail Race	38:23:05 h	30
11.06	50mi	26th Snow Peaks 50 Mile Trail Run	16:52:04 h	187
15.04	50km	19th Desert Rats Trail Running Festival 50 km	7:53:28 h	173
05.03	55km	13th Red Mountain 55K	8:24:02 h	72
2021
13.08	100mi	4th UTE 100 Mile Trail Race	36:48:12 h	64
12.06	50mi	25th Snow Peaks 50 Mile Trail Run	15:36:50 h	210
17.04	50km	18th Desert Rats Trail Running Festival 50 km	7:25:10 h	184
06.03	55km	12th Red Mountain 55K	9:15:34 h	90
2019
09.08	100mi	2nd UTE 100 Mile Trail Race	36:48:13 h	64
27.07	70km	5th Tushars 70km Mountain Runs	18:23:24 h	62
08.06	50mi	23nd Snow Peaks 50 Mile Trail Run	14:38:57 h	248
13.04	50km	16th Desert Rats Trail Running Festival 50 km	7:53:45 h	152
09.02	24h	4th Running Up For Air - Grandeur Peak	46.670 km	24
2018
11.08	100mi	1st UTE 100 Mile Trail Race	37:12:59 h	56
02.06	50mi	22nd Snow Peaks 50 Mile Trail Run	15:40:47 h	234
14.04	50km	15th Desert Rats Trail Running Festival 50 km	7:23:11 h	102
2017
08.09	100mi	38th Wasatch Front 100 Mile	35:03:06 h	177
2016
09.09	100mi	37th Wasatch Front 100 Mile	34:42:42 h	188
04.06	50mi	20th Snow Peaks 50 Mile Trail Run	14:49:11 h	185
16.04	50km	13th Desert Rats Trail Running Festival 50 km	7:01:27 h	44
2015
11.09	100mi	36th Wasatch Front 100 Mile	34:42:56 h	163
11.07	50mi	2nd Skyline Mountain 50 Mile Endurance Run	15:33:27 h	23
18.04	50km	12th Desert Rats Trail Running Festival 50 km	8:00:24 h	45
2014
05.09	100mi	35th Wasatch Front 100 Mile	33:20:22 h	164
07.06	50mi	18th Snow Peaks 50 Mile Trail Run	14:37:23 h	162
19.04	50km	11th Desert Rats Trail Running Festival 50 km	7:10:14 h	36
22.03	50km	9th Antelope Island Buffalo Run 50 km	7:04:23 h	96
2013
27.09	100mi	15th The Bear 100 Mile Endurance Run	34:39:00 h	142
01.06	50mi	17th Snow Peaks 50 Mile Trail Run	14:10:54 h	160
2012
07.09	100mi	33rd Wasatch Front 100 Mile	33:05:29 h	144
02.06	50mi	16th Snow Peaks 50 Mile Trail Run	14:12:43 h	140
24.03	50km	7th Antelope Island Buffalo Run 50 km	7:09:23 h	137
2011
23.09	100mi	13th The Bear 100 Mile Endurance Run	31:16:22 h	91
04.06	50mi	15th Snow Peaks 50 Mile Trail Run	14:47:28 h	124
26.03	50km	6th Antelope Island Buffalo Run 50 km	6:49:04 h	115
2010
10.09	100mi	31st Wasatch Front 100 Mile	34:32:41 h	147
16.07	50km	8th MillCreek 50k	12:09:00 h	27
05.06	50mi	14th Snow Peaks 50 Mile Trail Run	14:14:09 h	134
27.03	50km	5th Antelope Island Buffalo Run 50 km	6:39:09 h	89
2009
25.09	100mi	11th The Bear 100 Mile Endurance Run	32:17:29 h	63
31.07	50km	7th MillCreek 50k	12:34:00 h	22
27.06	28mi	3rd Logan Peak 28 Mile Trail Race	7:11:14 h	57
06.06	50mi	13th Snow Peaks 50 Mile Trail Run	13:43:05 h	136
28.03	50km	4th Antelope Island Buffalo Run 50 km	6:42:45 h	73
2008
06.09	100mi	29th Wasatch Front 100 Mile	32:41:44 h	92
18.07	50km	6th MillCreek 50k	12:13:00 h	29
07.06	50mi	12th Snow Peaks 50 Mile Trail Run	14:54:42 h	138
22.03	50km	3rd Antelope Island Buffalo Run 50 km	6:42:54 h	62
2007
08.09	100mi	28th Wasatch Front 100 Mile	34:50:18 h	133
28.07	50km	5th MillCreek 50k	12:41:00 h	23
02.06	50mi	11th Snow Peaks 50 Mile Trail Run	13:21:50 h	95
24.03	50km	2nd Antelope Island Buffalo Run 50 km	6:43:36 h	39
2006
09.09	100mi	27th Wasatch Front 100 Mile	33:18:54 h	100
28.07	50km	4th MillCreek 50k	12:38:00 h	12
03.06	50mi	10th Snow Peaks 50 Mile Trail Run	14:57:05 h	162
2005
10.09	100mi	26th Wasatch Front 100 Mile	34:50:45 h	131
30.07	50km	3rd MillCreek 50k	12:09:00 h	11
16.07	50km	6th Midnight Mountain 50K	8:28:28 h	29
04.06	50mi	9th Snow Peaks 50 Mile Trail Run	15:30:07 h	137
2004
05.06	50mi	8th Snow Peaks 50 Mile Trail Run	15:35:29 h	167

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	11/10/2024	8th Moab 240 Endurance Run	383,02	×5
✓ 2	7/10/2022	6th Moab 240 Endurance Run	383,02	×5
✓ 3	12/8/2022	5th UTE 100 Mile Trail Race	160,93	×2
✓ 4	13/8/2021	4th UTE 100 Mile Trail Race	160,93	×2
✓ 5	9/8/2019	2nd UTE 100 Mile Trail Race	160,93	×2
✓ 6	11/8/2018	1st UTE 100 Mile Trail Race	160,93	×2
✓ 7	8/9/2017	38th Wasatch Front 100 Mile	160,93	×2
✓ 8	9/9/2016	37th Wasatch Front 100 Mile	160,93	×2
✓ 9	11/9/2015	36th Wasatch Front 100 Mile	160,93	×2
✓ 10	5/9/2014	35th Wasatch Front 100 Mile	160,93	×2
✓ 11	27/9/2013	15th The Bear 100 Mile Endurance Run	160,93	×2
✓ 12	7/9/2012	33rd Wasatch Front 100 Mile	160,93	×2
✓ 13	23/9/2011	13th The Bear 100 Mile Endurance Run	160,93	×2
✓ 14	10/9/2010	31st Wasatch Front 100 Mile	160,93	×2
✓ 15	25/9/2009	11th The Bear 100 Mile Endurance Run	160,93	×2
✓ 16	6/9/2008	29th Wasatch Front 100 Mile	160,93	×2
✓ 17	8/9/2007	28th Wasatch Front 100 Mile	160,93	×2
✓ 18	9/9/2006	27th Wasatch Front 100 Mile	160,93	×2
✓ 19	10/9/2005	26th Wasatch Front 100 Mile	160,93	×2
✓ 20	15/8/2026	7th White Pine 50 Mile Backcountry Run	80,47	×1
✓ 21	16/8/2025	6th White Pine 50 Mile Backcountry Run	80,47	×1
✓ 22	26/8/2023	6th UTE 50 Mile Trail Race	80,47	×1
✓ 23	11/6/2022	26th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 24	12/6/2021	25th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 25	8/6/2019	23nd Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 26	2/6/2018	22nd Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 27	4/6/2016	20th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 28	11/7/2015	2nd Skyline Mountain 50 Mile Endurance Run	80,47	×1
✓ 29	7/6/2014	18th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 30	1/6/2013	17th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 31	2/6/2012	16th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 32	4/6/2011	15th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 33	5/6/2010	14th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 34	6/6/2009	13th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 35	7/6/2008	12th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 36	2/6/2007	11th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 37	3/6/2006	10th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 38	4/6/2005	9th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 39	5/6/2004	8th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 40	29/7/2023	9th Tushars 70km Mountain Runs	70,00	×1
✓ 41	27/7/2019	5th Tushars 70km Mountain Runs	70,00	×1
✓ 42	10/8/2024	10th Skyline Mountain Marathon 55K	55,00	—
✓ 43	2/3/2024	15th Red Mountain 55K	55,00	—
✓ 44	12/8/2023	9th Skyline Mountain Marathon 55K	55,00	—
✓ 45	4/3/2023	14th Red Mountain 55K	55,00	—
✓ 46	5/3/2022	13th Red Mountain 55K	55,00	—
✓ 47	6/3/2021	12th Red Mountain 55K	55,00	—
✓ 48	7/3/2026	17th Red Mountain 50K	50,00	—
✓ 49	14/6/2025	4th The Kan 50km	50,00	—
✓ 50	1/3/2025	16th Red Mountain 50K	50,00	—
51	15/4/2022	19th Desert Rats Trail Running Festival 50 km	50,00	—
52	17/4/2021	18th Desert Rats Trail Running Festival 50 km	50,00	—
53	13/4/2019	16th Desert Rats Trail Running Festival 50 km	50,00	—
54	14/4/2018	15th Desert Rats Trail Running Festival 50 km	50,00	—
55	16/4/2016	13th Desert Rats Trail Running Festival 50 km	50,00	—
56	18/4/2015	12th Desert Rats Trail Running Festival 50 km	50,00	—
57	19/4/2014	11th Desert Rats Trail Running Festival 50 km	50,00	—
58	22/3/2014	9th Antelope Island Buffalo Run 50 km	50,00	—
59	24/3/2012	7th Antelope Island Buffalo Run 50 km	50,00	—
60	26/3/2011	6th Antelope Island Buffalo Run 50 km	50,00	—
61	16/7/2010	8th MillCreek 50k	50,00	—
62	27/3/2010	5th Antelope Island Buffalo Run 50 km	50,00	—
63	31/7/2009	7th MillCreek 50k	50,00	—
64	28/3/2009	4th Antelope Island Buffalo Run 50 km	50,00	—
65	18/7/2008	6th MillCreek 50k	50,00	—
66	22/3/2008	3rd Antelope Island Buffalo Run 50 km	50,00	—
67	28/7/2007	5th MillCreek 50k	50,00	—
68	24/3/2007	2nd Antelope Island Buffalo Run 50 km	50,00	—
69	28/7/2006	4th MillCreek 50k	50,00	—
70	30/7/2005	3rd MillCreek 50k	50,00	—
71	16/7/2005	6th Midnight Mountain 50K	50,00	—
72	15/4/2023	20th Desert Rats Trail Running Festival 50 km	48,00	—
73	9/2/2019	4th Running Up For Air - Grandeur Peak	46,67	—
74	27/6/2009	3rd Logan Peak 28 Mile Trail Race	45,06	—