John Hallsten

Born : 1956 Cat. M70 Ultrarunner since 1999

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

34,0%

Rank quotient ?This runner's calculation uses 80 eligible race(s): Σ(rank − 1) = 1 597; Σ finishers = 4 697. 1 597 / 4 697 × 100 = 34.00%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed80

Km — ultra races7 952 km

> 100 km24

> 160 km23

Longest race160,9 km

3rd Copper Kings 100 — 27/6/2025

Km per year (ultra races)

229

2022

2023

109

2024

211

2025

2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 316

🏅 Top 3 M17

Longest winning streak0

Current streak0

Records

50 km4h43'13 100 km10h23'12 50 mi7h10'49 100 mi22h59'41 12 h74,03 km

HISTORY

80 race(s)

Date		Race	Perf.	Rk
2026
19.06	12h	9th Moonlight on Mount Ascension Trail Run	61.959 km	11
2025
27.06	100mi	3rd Copper Kings 100	34:44:36 h	70
10.05	50km	1st Don't Fence Me In Trail Run	7:01:59 h	87
2024
21.06	12h	7th Moonlight on Mount Ascension Trail Run	55.522 km	14
15.06	53km	11th River of No Return Endurance Run 53K	8:23:03 h	38
2022
15.07	100mi	29th Hardrock Hundred Endurance Run	43:17:24 h	81
17.06	12h	5th Moonlight on Mount Ascension Trail Run	67.592 km	8
2021
18.06	12h	4th Moonlight on Mount Ascension Trail Run	74.029 km	4
2020
11.07	100km	7th Beaverhead 100K Endurance Run	16:34:41 h	63
21.06	12h	3rd Moonlight on Mount Ascension Trail Run	74.029 km	3 🥉
2019
21.06	12h	2nd Moonlight on Mount Ascension Trail Run	74.029 km	9
2018
04.08	53mi	14th HURL Elkhorn 50 Mile Endurance Run	14:56:05 h	16
20.07	100mi	25th Hardrock Hundred Endurance Run	41:01:12 h	59
22.06	12h	1st Moonlight on Mount Ascension Trail Run	74.029 km	9
16.06	50km	16th Old Gabe 50K	9:15:24 h	16
2017
16.09	100mi	6th Idaho Mountain Trail Ultra Festival (IMTUF 100)	33:05:36 h	62
05.08	50mi	13th HURL Elkhorn 50 Mile Endurance Run	14:20:12 h	16
17.06	108km	4th River of No Return Endurance Run 108K	19:26:13 h	22
2016
17.09	100mi	5th Idaho Mountain Trail Ultra Festival (IMTUF 100)	35:23:43 h	73
06.08	50mi	12th HURL Elkhorn 50 Mile Endurance Run	14:07:07 h	11
15.07	100mi	23rd Hardrock Hundred Endurance Run	41:50:00 h	65
18.06	50km	14th Old Gabe 50K	8:15:00 h	12
2015
01.08	50mi	11th HURL Elkhorn 50 Mile Endurance Run	13:33:55 h	15
20.06	50km	13th Old Gabe 50K	7:45:17 h	15
2014
02.08	50mi	10th HURL Elkhorn 50 Mile Endurance Run	13:27:19 h	16
11.07	100mi	21st Hardrock Hundred Endurance Run	40:32:00 h	48
07.06	100km	1st Scout Mountain 100 km Ultra Trail	15:38:02 h	32
2013
23.08	100mi	1st Rampage the Roots - 100mi	29:10:00 h	6
03.08	50mi	9th HURL Elkhorn 50 Mile Endurance Run	12:12:51 h	12
13.07	50mi	9th Devils Backbone 50 Miler	11:22:00 h	7
22.06	50km	11th Old Gabe 50K	7:47:13 h	13
01.06	50mi	4th Pocatello 50 Mile Trail Run	11:23:37 h	24
2012
07.09	100mi	22th Superior Fall Trail Races 100 Mile	32:37:17 h	36
04.08	50mi	8th HURL Elkhorn 50 Mile Endurance Run	12:11:08 h	14
14.07	50mi	8th Devils Backbone 50 Miler	11:47:00 h	6
15.06	100mi	21st Bighorn Mountain Wild & Scenic 100 Mile Trail Run	29:55:34 h	67
2011
23.09	100mi	13th The Bear 100 Mile Endurance Run	32:29:22 h	111
06.08	50mi	7th HURL Elkhorn 50 Mile Endurance Run	11:09:19 h	14
08.07	100mi	18th Hardrock Hundred Endurance Run	38:07:00 h	30
2010
09.10	50mi	29th Le Grizz 50 Mile Ultramarathon	8:53:55 h	36
07.08	50mi	6th HURL Elkhorn 50 Mile Endurance Run	11:03:27 h	3 🥉
09.07	100mi	17th Hardrock Hundred Endurance Run	36:27:00 h	32
26.06	50km	8th Old Gabe 50K	7:36:44 h	3 🥉
2009
10.10	50mi	28th Le Grizz 50 Mile Ultramarathon	8:33:25 h	13
25.09	100mi	11th The Bear 100 Mile Endurance Run	27:56:58 h	22
01.08	50mi	5th HURL Elkhorn 50 Mile Endurance Run	10:38:14 h	2 🥈
11.07	50mi	5th Devils Backbone 50 Miler	10:46:00 h	2 🥈
27.06	50km	7th Old Gabe 50K	7:33:00 h	3 🥉
2008
11.10	50mi	27th Le Grizz 50 Mile Ultramarathon	8:48:59 h	23
02.08	50mi	4th HURL Elkhorn 50 Mile Endurance Run	10:48:12 h	4
12.07	50mi	4th Devils Backbone 50 Miler	11:32:00 h	2 🥈
21.06	50km	6th Old Gabe 50K	7:03:55 h	3 🥉
2007
13.10	50mi	26th Le Grizz 50 Mile Ultramarathon	7:57:50 h	9
04.08	50mi	3rd HURL Elkhorn 50 Mile Endurance Run	11:12:11 h	4
14.07	100mi	14th Hardrock Hundred Endurance Run	36:45:20 h	34
23.06	50km	5th Old Gabe 50K	7:04:00 h	5
2006
29.07	50mi	2nd HURL Elkhorn 50 Mile Endurance Run	10:45:52 h	3 🥉
16.06	100mi	15th Bighorn Mountain Wild & Scenic 100mi Trail Run	27:13:02 h	13
2005
08.10	50mi	24th Le Grizz 50 Mile Ultramarathon	7:26:30 h	6
10.09	100mi	26th Wasatch Front 100 Mile	27:57:34 h	36
20.08	50mi	1st HURL Elkhorn 50 Mile Endurance Run	10:35:36 h	3 🥉
25.06	50km	1st Bridger Ridge Run	6:35:58 h	5
2004
11.09	100mi	3rd Plain 100 Mile Endurance Run	28:10:00 h	3 🥉
28.08	100km	Elkhorn Mountain Endurance Run 100 km	11:05:03 h	3 🥉
10.07	100mi	11th Hardrock Hundred Endurance Run	34:58:36 h	13
26.06	50km	3rd Old Gabe 50K	6:35:36 h	3 🥉
2003
26.09	100mi	5th The Bear 100 Mile Endurance Run	23:44:43 h	5
06.09	100km	Elkhorn Mountain Endurance Run 100 km	11:43:32 h	2 🥈
28.06	100mi	30th Western States 100 Mile Endurance Run	22:59:41 h	61
2002
12.10	50mi	21st Le Grizz 50 Mile Ultramarathon	8:07:58 h	18
17.08	100mi	20th Leadville Trail 100 Mile	23:38:58 h	27
13.07	100km	Elkhorn Mountain Endurance Run 100 km	11:33:40 h	5
26.06	50km	1st Old Gabe 50K	6:35:25 h	3 🥉
2001
13.10	50mi	20th Le Grizz 50 Mile Ultramarathon	7:51:38 h	13
25.08	100mi	3rd Cascade Crest Classic 100 Mile	25:48:00 h	11
21.07	100km	Elkhorn Mountain Endurance Run 100 km	11:20:09 h	6
2000
14.10	50mi	19th Le Grizz 50 Mile Ultramarathon	7:10:49 h	4
15.07	100km	Elkhorn Mountain Endurance Run 100 km	10:23:12 h	2 🥈
1999
09.10	50mi	18th Le Grizz 50 Mile Ultramarathon	7:48:47 h	12
17.07	50km	Elkhorn Mountain Endurance Run 50 km	4:43:13 h	5

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	27/6/2025	3rd Copper Kings 100	160,93	×2
✓ 2	15/7/2022	29th Hardrock Hundred Endurance Run	160,93	×2
✓ 3	20/7/2018	25th Hardrock Hundred Endurance Run	160,93	×2
✓ 4	16/9/2017	6th Idaho Mountain Trail Ultra Festival (IMTUF 100)	160,93	×2
✓ 5	17/9/2016	5th Idaho Mountain Trail Ultra Festival (IMTUF 100)	160,93	×2
✓ 6	15/7/2016	23rd Hardrock Hundred Endurance Run	160,93	×2
✓ 7	11/7/2014	21st Hardrock Hundred Endurance Run	160,93	×2
✓ 8	23/8/2013	1st Rampage the Roots - 100mi	160,93	×2
✓ 9	7/9/2012	22th Superior Fall Trail Races 100 Mile	160,93	×2
✓ 10	15/6/2012	21st Bighorn Mountain Wild & Scenic 100 Mile Trail Run	160,93	×2
✓ 11	23/9/2011	13th The Bear 100 Mile Endurance Run	160,93	×2
✓ 12	8/7/2011	18th Hardrock Hundred Endurance Run	160,93	×2
✓ 13	9/7/2010	17th Hardrock Hundred Endurance Run	160,93	×2
✓ 14	25/9/2009	11th The Bear 100 Mile Endurance Run	160,93	×2
✓ 15	14/7/2007	14th Hardrock Hundred Endurance Run	160,93	×2
✓ 16	16/6/2006	15th Bighorn Mountain Wild & Scenic 100mi Trail Run	160,93	×2
✓ 17	10/9/2005	26th Wasatch Front 100 Mile	160,93	×2
✓ 18	11/9/2004	3rd Plain 100 Mile Endurance Run	160,93	×2
✓ 19	10/7/2004	11th Hardrock Hundred Endurance Run	160,93	×2
✓ 20	26/9/2003	5th The Bear 100 Mile Endurance Run	160,93	×2
✓ 21	28/6/2003	30th Western States 100 Mile Endurance Run	160,93	×2
✓ 22	17/8/2002	20th Leadville Trail 100 Mile	160,93	×2
✓ 23	25/8/2001	3rd Cascade Crest Classic 100 Mile	160,93	×2
✓ 24	17/6/2017	4th River of No Return Endurance Run 108K	108,00	×1
✓ 25	11/7/2020	7th Beaverhead 100K Endurance Run	100,00	×1
✓ 26	7/6/2014	1st Scout Mountain 100 km Ultra Trail	100,00	×1
✓ 27	28/8/2004	Elkhorn Mountain Endurance Run 100 km	100,00	×1
✓ 28	6/9/2003	Elkhorn Mountain Endurance Run 100 km	100,00	×1
✓ 29	13/7/2002	Elkhorn Mountain Endurance Run 100 km	100,00	×1
✓ 30	21/7/2001	Elkhorn Mountain Endurance Run 100 km	100,00	×1
✓ 31	15/7/2000	Elkhorn Mountain Endurance Run 100 km	100,00	×1
✓ 32	4/8/2018	14th HURL Elkhorn 50 Mile Endurance Run	85,30	×1
✓ 33	5/8/2017	13th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 34	6/8/2016	12th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 35	1/8/2015	11th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 36	2/8/2014	10th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 37	3/8/2013	9th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 38	13/7/2013	9th Devils Backbone 50 Miler	80,47	×1
✓ 39	1/6/2013	4th Pocatello 50 Mile Trail Run	80,47	×1
✓ 40	4/8/2012	8th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 41	14/7/2012	8th Devils Backbone 50 Miler	80,47	×1
✓ 42	6/8/2011	7th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 43	9/10/2010	29th Le Grizz 50 Mile Ultramarathon	80,47	×1
✓ 44	7/8/2010	6th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 45	10/10/2009	28th Le Grizz 50 Mile Ultramarathon	80,47	×1
✓ 46	1/8/2009	5th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 47	11/7/2009	5th Devils Backbone 50 Miler	80,47	×1
✓ 48	11/10/2008	27th Le Grizz 50 Mile Ultramarathon	80,47	×1
✓ 49	2/8/2008	4th HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 50	12/7/2008	4th Devils Backbone 50 Miler	80,47	×1
✓ 51	13/10/2007	26th Le Grizz 50 Mile Ultramarathon	80,47	×1
✓ 52	4/8/2007	3rd HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 53	29/7/2006	2nd HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 54	8/10/2005	24th Le Grizz 50 Mile Ultramarathon	80,47	×1
✓ 55	20/8/2005	1st HURL Elkhorn 50 Mile Endurance Run	80,47	×1
✓ 56	12/10/2002	21st Le Grizz 50 Mile Ultramarathon	80,47	×1
✓ 57	13/10/2001	20th Le Grizz 50 Mile Ultramarathon	80,47	×1
✓ 58	14/10/2000	19th Le Grizz 50 Mile Ultramarathon	80,47	×1
✓ 59	9/10/1999	18th Le Grizz 50 Mile Ultramarathon	80,47	×1
✓ 60	18/6/2021	4th Moonlight on Mount Ascension Trail Run	74,03	—
✓ 61	21/6/2020	3rd Moonlight on Mount Ascension Trail Run	74,03	—
✓ 62	21/6/2019	2nd Moonlight on Mount Ascension Trail Run	74,03	—
✓ 63	22/6/2018	1st Moonlight on Mount Ascension Trail Run	74,03	—
✓ 64	17/6/2022	5th Moonlight on Mount Ascension Trail Run	67,59	—
65	19/6/2026	9th Moonlight on Mount Ascension Trail Run	61,96	—
66	21/6/2024	7th Moonlight on Mount Ascension Trail Run	55,52	—
67	15/6/2024	11th River of No Return Endurance Run 53K	53,00	—
68	10/5/2025	1st Don't Fence Me In Trail Run	50,00	—
69	16/6/2018	16th Old Gabe 50K	50,00	—
70	18/6/2016	14th Old Gabe 50K	50,00	—
71	20/6/2015	13th Old Gabe 50K	50,00	—
72	22/6/2013	11th Old Gabe 50K	50,00	—
73	26/6/2010	8th Old Gabe 50K	50,00	—
74	27/6/2009	7th Old Gabe 50K	50,00	—
75	21/6/2008	6th Old Gabe 50K	50,00	—
76	23/6/2007	5th Old Gabe 50K	50,00	—
77	25/6/2005	1st Bridger Ridge Run	50,00	—
78	26/6/2004	3rd Old Gabe 50K	50,00	—
79	26/6/2002	1st Old Gabe 50K	50,00	—
80	17/7/1999	Elkhorn Mountain Endurance Run 50 km	50,00	—