Karen Jackson

Born : 1969 Cat. W55 Ultrarunner since 2011

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 ?

Mexico

New Zealand

United States

55,0%

Rank quotient ?This runner's calculation uses 102 eligible race(s): Σ(rank − 1) = 3 317; Σ finishers = 6 035. 3 317 / 6 035 × 100 = 54.96%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed105

Km — ultra races14 856 km

> 100 km50

> 160 km40

> 200 km15

> 24h25

> 48h9

Longest race590,6 km

3rd Tarheel Ultra Crewed — 28/11/2015

Km per year (ultra races)

882

2022

161

2023

2024

2025

2026

Race types (share of distance)

Road58,0%

Trail38,9%

Stage1,2%

Elim.1,9%

Wins & podiums (ultra)

🏆 Win2

🏆 Win F16

🏅 Top 39

🏅 Top 3 F38

Longest winning streak1

Current streak0

Records

50 km5h02'48 100 km17h03'26 50 mi10h48'40 100 mi24h07'14 12 h87,27 km 24 h165,09 km 48 h250,00 km Backyard27 loops

HISTORY

102 race(s)

Date		Race	Perf.	Rk
2023
27.12	100mi	6th Charleston 100 Race	31:33:44 h	34
2022
26.12	100mi	5th Charleston 100 Race	28:27:26 h	14
18.12	50mi	1st Charleston Itty Bitty 50	12:51:47 h	17
29.10	24h	9th Delirium Ultra 24 Hour Run	90.300 km	24
14.07	500km	17th Last Annual Vol-State 500K Endurance Run	6d 08:01:44 h	27
12.03	50km	8th Peyton's Wild and Wacky 10x5km Ultra	6:52:16 h	73
2021
27.12	100mi	4th Charleston 100 Race	28:29:20 h	14
20.11	24h	10th Crooked Road 24 Hour Ultra	137.214 km	12
08.07	500km	16th Last Annual Vol-State 500K Endurance Run	6d 06:20:49 h	18
05.06	50km	8th Hell Hole Hundred 50 km Night Run	9:46:06 h	4
06.03	30mi	3rd Almost 9 Miler The Triple 30 Mile Run	8:37:58 h	4
06.02	24h	6th Hallucination 24 Hour Trail Run	75.317 km	9
2020
27.12	100mi	3rd Charleston 100 Race	27:48:05 h	13
21.11	24h	8th Delirium Ultra 24 Hour Run	125.084 km	7
14.11	105mi	4th Swamp Fox Ultra 105mi	32:09:38 h	7
03.09	88h	6th A Race for the Ages	189.902 km	21
06.02	72h	SC Ultra Running Festival - 72 Hour Race	277.257 km	2 🥈
2019
27.12	100mi	2nd Charleston 100 Race	35:01:00 h	22
28.08	87h	5th A Race for the Ages	197.949 km	32
11.07	500km	14th Last Annual Vol-State 500K Endurance Run	6d 07:53:40 h	25
04.05	40mi	41st Strolling Jim 40 Mile	7:38:56 h	75
09.03	50km	5th Peyton's Wild and Wacky 10x5km Ultra	7:46:37 h	72
23.02	24h	3rd FarmDaze 24 Hour Run	49.889 km	52
02.02	24h	4th Hallucination 24 Hour Trail Run	61.155 km	19
2018
28.12	100mi	1st Charleston 100 Race	30:11:07 h	7
30.08	86h	4th A Race for the Ages	160.934 km	114
19.05	100mi	11th Keys100 Ultra-Marathons 100mi	28:08:20 h	86
05.05	40mi	40th Strolling Jim 40 Mile	8:50:29 h	130
17.02	24h	2nd FarmDaze 24 Hour Run	71.808 km	31
03.02	24h	3rd Hallucination 24 Hour Trail Run	120.378 km	10
2017
02.12	50km	6th Last Chance 50K Trail Run	6:55:42 h	26
11.11	100mi	4th Tunnel Hill 100 Mile Race	25:55:38 h	109
14.10	50km	2nd Taupo Ultramarathon 50km	7:17:03 h	111
29.09	100mi	3rd The Yeti 100 Mile Endurance Run	28:28:36 h	112
31.08	83h	3rd A Race for the Ages	178.637 km	49
13.07	500km	12th Last Annual Vol-State 500K Endurance Run	5d 07:08:26 h	6
04.07	50km	18th Big Butt 50 km	5:48:08 h	7
24.06	50km	2nd Badder Marsh Night Ultra	7:32:50 h	8
01.06	212mi	4th Hell Hole Hundred 212 Mile (Devil's Doorknob)	2d 21:29:14 h	2 🥈
06.05	40mi	39th Strolling Jim 40 Mile	7:31:16 h	66
01.04	24h	1st Run4Water 24 Hours Run	111.295 km	26
11.03	50km	3rd Peyton's Wild and Wacky 10x5km Ultra	5:41:00 h	75
04.03	50km	2nd Conquer the Rock - Foothills 50K	10:22:27 h	79
04.02	24h	2nd Hallucination 24 Hour Trail Run	135.571 km	8
07.01	50km	7th Harbison 50K	8:40:10 h	94
2016
19.11	50km	2nd Ultra Chili 50K	6:30:59 h	15
01.09	85h	2nd A Race for the Ages	225.308 km	22
14.07	500km	11th Last Annual Vol-State 500K Endurance Run	5d 21:49:17 h	16
04.07	50km	17th Big Butt 50 km	6:08:36 h	3 🥉
03.06	140mi	3rd Hell Hole Hundred 140 Mile	42:54:11 h	2 🥈
12.03	50km	2nd Peyton's Wild and Wacky 10x5km Ultra	7:05:40 h	69
27.02	50km	10th Gator Trail 50 km	5:41:28 h	30
06.02	24h	1st Hallucination 24 Hour Trail Run	112.493 km	10
09.01	50km	4th Savannah Rails to Trails 50K	7:31:37 h	35
2015
28.11	367mi	3rd Tarheel Ultra Crewed	6d 16:33:30 h	2 🥈
07.11	24h	4th Croatan 24-Hour Ultramarathon	155.140 km	7
24.10	100mi	1st Firewater 100 Mile Trail Race	30:27:23 h	5
03.10	100mi	2nd Cloudsplitter 100 - 100 Mile Run	39:23:51 h	32
26.09	50mi	5th The Georgia Jewel 50 Mile Run	16:07:05 h	43
04.09	84h	1st A Race for the Ages	241.401 km	17
25.07	100km	3rd Mattamuskeet Death March	17:03:26 h	5
18.07	50mi	5th Cremator Ultra 50 Mile Endurance Race	13:27:30 h	22
09.07	500km	10th Last Annual Vol-State 500K Endurance Run	6d 10:11:40 h	13
23.05	175km/4stages	1st The Savannah Grit 175k	31:55:48 h	14
16.05	30mi	5th Born to Run Ultra 30 Mile Marathon	6:17:51 h	131
02.05	50km	4th OBX 50 km Ultramarathon	6:42:42 h	6
11.04	42mi	3rd Cedar Island 40	8:34:53 h	7
07.03	100mi	4th Graveyard 100 Mile Ultramarathon	24:17:16 h	37
07.02	50mi	2nd Maysville to Macon 50 Mile Run	10:48:40 h	6
17.01	24h	4th 24hrs of HOSTELity	107.745 km	5
10.01	50km	3rd Savannah Rails to Trails 50K	5:02:48 h	17
03.01	100km	4th Neusiok 100 km Trail run	17:27:23 h	15
2014
20.12	100mi	16th Ancient Oaks 100 Mile Run	24:07:14 h	4
13.12	50km	3rd Last Chance 50K Trail Run	6:12:27 h	30
22.11	50km	5th Madder Marsh 50k	5:31:17 h	20
08.11	24h	3rd Croatan 24-Hour Ultramarathon	165.086 km	5
25.10	Backyard Ultra	1st Asylum Ultra - Last Man Standing	107.296 km (16h)	6
18.10	Backyard Ultra	4th Big Dog's Backyard Ultra	181.062 km (27h)	8
20.09	50km	1st The Barkley Fall Classic	12:48:50 h	145
31.08	50mi	2nd Yeti Snakebite 50 Miles	12:58:45 h	26
26.07	100km	2nd Mattamuskeet Death March	18:04:56 h	8
19.07	100mi	1st Double Cremator 100 Mile Challenge	25:18:00 h	8
19.07	50mi	4th Cremator Ultra 50 Mile Endurance Race	12:36:20 h	25
10.07	500km	9th Last Annual Vol-State 500K Endurance Run	6d 05:02:46 h	18
21.06	50km	4th Bad Marsh 50k Night Ultra	7:08:55 h	39
07.06	100mi	1st Hell Hole Hundred 100 Mile	28:51:24 h	3 🥉
17.05	50mi	2nd Cruel Jewel 50 Mile	21:11:00 h	43
12.04	42mi	2nd Cedar Island 40	8:36:38 h	13
08.03	100mi	3rd Graveyard 100 Mile Ultramarathon	27:02:23 h	61
02.03	50mi	8th Ultra Caballo Blanco Copper Canyon Ultra	14:33:21 h	295
08.02	24h	3rd Delirium Ultra 24 Hour Run	144.583 km	17
11.01	50km	2nd Savannah Rails to Trails 50K	6:55:38 h	34
04.01	100mi	2nd The Pistol 100 Mile Ultra Run	29:46:54 h	39
2013
30.11	367mi	1st Tarheel Ultra Crewed	7d 05:50:18 h	1 🏆
23.11	50km	4th Madder Marsh 50k	6:55:01 h	66
06.10	50km	6th FATS 50K Trail Race	6:18:24 h	34
21.09	12h	12h Chase The Sun Ultra	87.274 km	3 🥉
10.08	50km	The Annihilator 50K	8:38:48 h	25
30.03	50km	2nd Bear Blaster 50K+	6:55:30 h	15
2012
30.11	48h	1st Kinston 48 hours	250.000 km	1 🏆
06.10	50km	5th FATS 50K Trail Race	8:13:05 h	41
2011
02.10	50km	4th FATS 50K Trail Race	7:04:37 h	47

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	28/11/2015	3rd Tarheel Ultra Crewed	590,63	×6
✓ 2	30/11/2013	1st Tarheel Ultra Crewed	590,63	×6
✓ 3	14/7/2022	17th Last Annual Vol-State 500K Endurance Run	500,00	×5
✓ 4	8/7/2021	16th Last Annual Vol-State 500K Endurance Run	500,00	×5
✓ 5	11/7/2019	14th Last Annual Vol-State 500K Endurance Run	500,00	×5
✓ 6	13/7/2017	12th Last Annual Vol-State 500K Endurance Run	500,00	×5
✓ 7	14/7/2016	11th Last Annual Vol-State 500K Endurance Run	500,00	×5
✓ 8	9/7/2015	10th Last Annual Vol-State 500K Endurance Run	500,00	×5
✓ 9	10/7/2014	9th Last Annual Vol-State 500K Endurance Run	500,00	×5
✓ 10	1/6/2017	4th Hell Hole Hundred 212 Mile (Devil's Doorknob)	341,18	×3
✓ 11	6/2/2020	SC Ultra Running Festival - 72 Hour Race	277,26	×2
✓ 12	30/11/2012	1st Kinston 48 hours	250,00	×2
✓ 13	4/9/2015	1st A Race for the Ages	241,40	×2
✓ 14	3/6/2016	3rd Hell Hole Hundred 140 Mile	225,31	×2
✓ 15	1/9/2016	2nd A Race for the Ages	225,31	×2
✓ 16	28/8/2019	5th A Race for the Ages	197,95	×2
✓ 17	3/9/2020	6th A Race for the Ages	189,90	×1
✓ 18	18/10/2014	4th Big Dog's Backyard Ultra	181,06	×1
✓ 19	31/8/2017	3rd A Race for the Ages	178,64	×1
✓ 20	23/5/2015	1st The Savannah Grit 175k	175,00	×1
✓ 21	14/11/2020	4th Swamp Fox Ultra 105mi	168,98	×1
✓ 22	8/11/2014	3rd Croatan 24-Hour Ultramarathon	165,09	×1
✓ 23	27/12/2023	6th Charleston 100 Race	160,93	×1
✓ 24	26/12/2022	5th Charleston 100 Race	160,93	×1
✓ 25	27/12/2021	4th Charleston 100 Race	160,93	×1
✓ 26	27/12/2020	3rd Charleston 100 Race	160,93	×1
✓ 27	27/12/2019	2nd Charleston 100 Race	160,93	×1
✓ 28	28/12/2018	1st Charleston 100 Race	160,93	×1
✓ 29	19/5/2018	11th Keys100 Ultra-Marathons 100mi	160,93	×1
✓ 30	11/11/2017	4th Tunnel Hill 100 Mile Race	160,93	×1
✓ 31	29/9/2017	3rd The Yeti 100 Mile Endurance Run	160,93	×1
✓ 32	24/10/2015	1st Firewater 100 Mile Trail Race	160,93	×1
✓ 33	3/10/2015	2nd Cloudsplitter 100 - 100 Mile Run	160,93	×1
✓ 34	7/3/2015	4th Graveyard 100 Mile Ultramarathon	160,93	×1
✓ 35	20/12/2014	16th Ancient Oaks 100 Mile Run	160,93	×1
✓ 36	19/7/2014	1st Double Cremator 100 Mile Challenge	160,93	×1
✓ 37	7/6/2014	1st Hell Hole Hundred 100 Mile	160,93	×1
✓ 38	8/3/2014	3rd Graveyard 100 Mile Ultramarathon	160,93	×1
✓ 39	4/1/2014	2nd The Pistol 100 Mile Ultra Run	160,93	×1
✓ 40	30/8/2018	4th A Race for the Ages	160,93	×1
✓ 41	7/11/2015	4th Croatan 24-Hour Ultramarathon	155,14	×1
✓ 42	8/2/2014	3rd Delirium Ultra 24 Hour Run	144,58	×1
✓ 43	20/11/2021	10th Crooked Road 24 Hour Ultra	137,21	×1
✓ 44	4/2/2017	2nd Hallucination 24 Hour Trail Run	135,57	×1
✓ 45	21/11/2020	8th Delirium Ultra 24 Hour Run	125,08	×1
✓ 46	3/2/2018	3rd Hallucination 24 Hour Trail Run	120,38	×1
✓ 47	6/2/2016	1st Hallucination 24 Hour Trail Run	112,49	×1
✓ 48	1/4/2017	1st Run4Water 24 Hours Run	111,30	×1
✓ 49	17/1/2015	4th 24hrs of HOSTELity	107,75	×1
✓ 50	25/10/2014	1st Asylum Ultra - Last Man Standing	107,30	×1
✓ 51	25/7/2015	3rd Mattamuskeet Death March	100,00	×1
✓ 52	3/1/2015	4th Neusiok 100 km Trail run	100,00	×1
✓ 53	26/7/2014	2nd Mattamuskeet Death March	100,00	×1
✓ 54	29/10/2022	9th Delirium Ultra 24 Hour Run	90,30	—
✓ 55	21/9/2013	12h Chase The Sun Ultra	87,27	—
✓ 56	18/12/2022	1st Charleston Itty Bitty 50	80,47	—
✓ 57	26/9/2015	5th The Georgia Jewel 50 Mile Run	80,47	—
✓ 58	18/7/2015	5th Cremator Ultra 50 Mile Endurance Race	80,47	—
✓ 59	7/2/2015	2nd Maysville to Macon 50 Mile Run	80,47	—
✓ 60	31/8/2014	2nd Yeti Snakebite 50 Miles	80,47	—
✓ 61	17/5/2014	2nd Cruel Jewel 50 Mile	80,47	—
✓ 62	2/3/2014	8th Ultra Caballo Blanco Copper Canyon Ultra	80,47	—
✓ 63	6/2/2021	6th Hallucination 24 Hour Trail Run	75,32	—
✓ 64	17/2/2018	2nd FarmDaze 24 Hour Run	71,81	—
✓ 65	11/4/2015	3rd Cedar Island 40	67,59	—
✓ 66	12/4/2014	2nd Cedar Island 40	67,59	—
67	4/5/2019	41st Strolling Jim 40 Mile	64,37	—
68	5/5/2018	40th Strolling Jim 40 Mile	64,37	—
69	6/5/2017	39th Strolling Jim 40 Mile	64,37	—
70	2/2/2019	4th Hallucination 24 Hour Trail Run	61,16	—
71	12/3/2022	8th Peyton's Wild and Wacky 10x5km Ultra	50,00	—
72	5/6/2021	8th Hell Hole Hundred 50 km Night Run	50,00	—
73	9/3/2019	5th Peyton's Wild and Wacky 10x5km Ultra	50,00	—
74	2/12/2017	6th Last Chance 50K Trail Run	50,00	—
75	14/10/2017	2nd Taupo Ultramarathon 50km	50,00	—
76	4/7/2017	18th Big Butt 50 km	50,00	—
77	24/6/2017	2nd Badder Marsh Night Ultra	50,00	—
78	11/3/2017	3rd Peyton's Wild and Wacky 10x5km Ultra	50,00	—
79	4/3/2017	2nd Conquer the Rock - Foothills 50K	50,00	—
80	7/1/2017	7th Harbison 50K	50,00	—
81	19/11/2016	2nd Ultra Chili 50K	50,00	—
82	4/7/2016	17th Big Butt 50 km	50,00	—
83	12/3/2016	2nd Peyton's Wild and Wacky 10x5km Ultra	50,00	—
84	27/2/2016	10th Gator Trail 50 km	50,00	—
85	9/1/2016	4th Savannah Rails to Trails 50K	50,00	—
86	2/5/2015	4th OBX 50 km Ultramarathon	50,00	—
87	10/1/2015	3rd Savannah Rails to Trails 50K	50,00	—
88	13/12/2014	3rd Last Chance 50K Trail Run	50,00	—
89	22/11/2014	5th Madder Marsh 50k	50,00	—
90	20/9/2014	1st The Barkley Fall Classic	50,00	—
91	21/6/2014	4th Bad Marsh 50k Night Ultra	50,00	—
92	11/1/2014	2nd Savannah Rails to Trails 50K	50,00	—
93	23/11/2013	4th Madder Marsh 50k	50,00	—
94	6/10/2013	6th FATS 50K Trail Race	50,00	—
95	10/8/2013	The Annihilator 50K	50,00	—
96	30/3/2013	2nd Bear Blaster 50K+	50,00	—
97	6/10/2012	5th FATS 50K Trail Race	50,00	—
98	2/10/2011	4th FATS 50K Trail Race	50,00	—
99	23/2/2019	3rd FarmDaze 24 Hour Run	49,89	—
100	6/3/2021	3rd Almost 9 Miler The Triple 30 Mile Run	48,28	—
101	16/5/2015	5th Born to Run Ultra 30 Mile Marathon	48,28	—