John Bozung

Born : 1953 Cat. M70 Ultrarunner since 1994

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 ?

Canada

United States

61,2%

Rank quotient ?This runner's calculation uses 71 eligible race(s): Σ(rank − 1) = 6 112; Σ finishers = 9 995. 6 112 / 9 995 × 100 = 61.15%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed71

Km — ultra races4 180 km

> 100 km2

> 160 km2

> 200 km1

> 24h1

Longest race210,8 km

35th Across the Years, 10 days — 28/12/2019

Km per year (ultra races)

2022

2023

213

2024

2025

2026

Race types (share of distance)

Road13,7%

Trail86,3%

Records

50 km4h02'09 100 km12h28'42 50 mi9h34'55 100 mi28h45'30 12 h57,21 km 24 h64,37 km

HISTORY

71 race(s) · 1 split(s) nested

Date		Race	Perf.	Rk
2024
09.11	12h	1st Liberty Park Endurance 12h Runs	57.212 km	13
30.08	11h	5th Dusk to Dawn Relay Race	45.061 km	16
15.03	24h	13th Pulse Endurance Runs (Pickled Feet) 24 Hour	64.373 km	21
17.02	12h	11th Jackpot Ultra Running Festival 12 Hour Race	46.490 km	22
2022
11.02	50km	4th Grandmaster Ultras 50 km Run	10:29:08 h	23
2021
04.12	50km	6th The Capstone 50km Trail Race	11:40:19 h	18
05.02	50km	3rd Grandmaster Ultras 50 km Run	8:59:28 h	19
2020
05.12	50km	5th The Capstone 50km Trail Race	11:40:19 h	18
30.05	50km	8th Bryce 50 km Trail Run	11:41:35 h	65
2019
28.12	10d	35th Across the Years, 10 days	210.777 km	46
28.12	6d	35th Across the Years, 10 days - 6d Split	210.777 km	46
01.12	50km	33nd OTHTC High Desert 50K Ultra	7:14:53 h	85
2018
02.12	50km	32nd OTHTC High Desert 50K Ultra	7:19:02 h	124
17.11	50km	8th Antelope Island Fall Classic 50K	8:15:56 h	194
19.10	50mi	13th Pony Express Trail 50 Mile	13:25:44 h	18
2017
18.02	55km	11th Moab Red Hot 55k	9:14:18 h	189
2016
04.12	50km	30th OTHTC High Desert 50K Ultra	6:39:07 h	130
19.11	50km	2nd Dead Horse 50 km Race	6:58:59 h	134
05.11	50km	6th Antelope Island Fall Classic 50K	7:18:36 h	144
2015
06.12	50km	29th OTHTC High Desert 50K Ultra	6:35:00 h	133
24.10	50km	9th Goblin Valley Ultra 50k	7:05:22 h	48
21.03	50km	10th Antelope Island Buffalo Run 50 km	8:23:35 h	150
2014
07.12	50km	28th OTHTC High Desert 50K Ultra	6:49:20 h	174
22.03	50mi	9th Antelope Island Buffalo Run 50 Mile	12:17:29 h	101
15.02	55km	8th Moab Red Hot 55k	9:11:35 h	293
2013
01.12	50km	27th OTHTC High Desert 50K Ultra	6:48:49 h	155
19.10	50km	3rd Antelope Island 50K	7:04:43 h	88
2012
02.12	50km	26th OTHTC High Desert 50K Ultra	7:55:08 h	204
2011
04.12	50km	25th OTHTC High Desert 50K Ultra	6:08:07 h	102
2010
05.12	50km	24th OTHTC High Desert 50K Ultra	6:17:27 h	160
23.04	50km	2nd Red Mountain 50K	6:17:50 h	38
13.02	55km	4th Moab Red Hot 55k	8:14:42 h	165
2009
06.12	50km	23rd OTHTC High Desert 50K Ultra	5:19:58 h	81
09.05	50km	11th Capon Valley 50K Run	6:45:09 h	73
25.04	50km	2nd Chippewa Moraine 50km Ultra Marathon	6:34:07 h	83
2008
07.12	50km	22nd OTHTC High Desert 50K Ultra	5:43:58 h	97
22.03	50km	3rd Antelope Island Buffalo Run 50 km	6:58:35 h	65
2007
02.12	50km	21st OTHTC High Desert 50K Ultra	5:46:00 h	86
10.02	50km	9th Pemberton Trail 50 km	6:00:15 h	72
2006
03.12	50km	20th OTHTC High Desert 50K Ultra	5:35:06 h	78
24.06	50km	14th Niagara Ultra 50 km	6:20:47 h	62
23.04	50km	23rd Mt. Si 50 km Ultra Run	6:01:25 h	43
25.02	50km	2nd 50km Silver Comet Ultra Run	5:17:58 h	22
11.02	50km	8th Pemberton Trail 50 km	6:12:26 h	75
28.01	50km	12th Mountain Mist 50k	7:13:30 h	210
2005
17.12	50km	Muir Beach Trail Run	7:06:01 h	15
04.12	50km	19th OTHTC High Desert 50K Ultra	6:44:29 h	155
03.12	50km	16th Sunmart Texas Trails 50 km	5:57:55 h	202
26.11	35mi	13th Santa Barbara Nine Trails 35 Mile Endurance Run	10:14:00 h	50
29.10	50km	1st Goblin Valley Ultra 50k	5:24:40 h	35
16.07	50km	6th Midnight Mountain 50K	9:17:32 h	39
2004
04.12	50km	18th OTHTC High Desert 50K Ultra	5:53:55 h	106
2003
07.12	50km	17th OTHTC High Desert 50K Ultra	5:59:47 h	98
26.04	50km	8th McDonald Forest 50K Trail Run	7:38:52 h	151
2002
08.12	50km	16th OTHTC High Desert 50K Ultra	5:48:36 h	106
12.04	50mi	10th Bull Run Run 50 Miler	11:16:24 h	168
02.02	50mi	10th Rocky Raccoon 50 Mile Trail Run	10:30:22 h	13
2001
09.12	50km	15th OTHTC High Desert 50K Ultra	5:18:29 h	74
07.04	50mi	9th Bull Run Run 50 Miler	10:39:51 h	100
2000
10.12	50km	14th OTHTC High Desert 50K Ultra	5:13:19 h	65
09.09	50km	9th Bulldog 50k Ultra Run	6:17:08 h	44
24.06	100mi	27th Western States 100 Mile Endurance Run	28:45:30 h	154
15.04	50mi	8th Bull Run Run 50 Miler	10:22:01 h	112
1999
05.12	50km	13th OTHTC High Desert 50K Ultra	4:40:54 h	25
11.09	50km	8th Bulldog 50k Ultra Run	5:26:38 h	22
25.04	50km	25th Lake Waramaug 50km Ultra Marathon	4:22:22 h	9
17.04	50mi	7th Bull Run Run 50 Miler	9:34:55 h	61
1998
05.07	100km	Midnight Sun Ultramarathon	12:28:42 h	9
1996
12.12	50mi	7th Sunmart Texas Trails 50 Mile	10:22:40 h	200
08.12	50km	10th OTHTC High Desert 50K Ultra	4:28:41 h	18
1995
15.09	50mi	1st Monument Valley 50 Milers - Sunday event	9:41:10 h	8
1994
11.12	50km	8th OTHTC High Desert 50K Ultra	4:02:09 h	7

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	28/12/2019	35th Across the Years, 10 days	210,78	×4
✓ 2	24/6/2000	27th Western States 100 Mile Endurance Run	160,93	×3
✓ 3	5/7/1998	Midnight Sun Ultramarathon	100,00	×2
✓ 4	19/10/2018	13th Pony Express Trail 50 Mile	80,47	×1
✓ 5	22/3/2014	9th Antelope Island Buffalo Run 50 Mile	80,47	×1
✓ 6	12/4/2002	10th Bull Run Run 50 Miler	80,47	×1
✓ 7	2/2/2002	10th Rocky Raccoon 50 Mile Trail Run	80,47	×1
✓ 8	7/4/2001	9th Bull Run Run 50 Miler	80,47	×1
✓ 9	15/4/2000	8th Bull Run Run 50 Miler	80,47	×1
✓ 10	17/4/1999	7th Bull Run Run 50 Miler	80,47	×1
✓ 11	12/12/1996	7th Sunmart Texas Trails 50 Mile	80,47	×1
✓ 12	15/9/1995	1st Monument Valley 50 Milers - Sunday event	80,47	×1
✓ 13	15/3/2024	13th Pulse Endurance Runs (Pickled Feet) 24 Hour	64,37	×1
✓ 14	9/11/2024	1st Liberty Park Endurance 12h Runs	57,21	×1
✓ 15	26/11/2005	13th Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	×1
✓ 16	18/2/2017	11th Moab Red Hot 55k	55,00	×1
✓ 17	15/2/2014	8th Moab Red Hot 55k	55,00	×1
✓ 18	13/2/2010	4th Moab Red Hot 55k	55,00	×1
✓ 19	11/2/2022	4th Grandmaster Ultras 50 km Run	50,00	×1
✓ 20	4/12/2021	6th The Capstone 50km Trail Race	50,00	×1
✓ 21	5/2/2021	3rd Grandmaster Ultras 50 km Run	50,00	×1
✓ 22	5/12/2020	5th The Capstone 50km Trail Race	50,00	×1
✓ 23	30/5/2020	8th Bryce 50 km Trail Run	50,00	×1
✓ 24	1/12/2019	33nd OTHTC High Desert 50K Ultra	50,00	×1
✓ 25	2/12/2018	32nd OTHTC High Desert 50K Ultra	50,00	×1
✓ 26	17/11/2018	8th Antelope Island Fall Classic 50K	50,00	×1
✓ 27	4/12/2016	30th OTHTC High Desert 50K Ultra	50,00	×1
✓ 28	19/11/2016	2nd Dead Horse 50 km Race	50,00	×1
✓ 29	5/11/2016	6th Antelope Island Fall Classic 50K	50,00	×1
✓ 30	6/12/2015	29th OTHTC High Desert 50K Ultra	50,00	×1
✓ 31	24/10/2015	9th Goblin Valley Ultra 50k	50,00	×1
✓ 32	21/3/2015	10th Antelope Island Buffalo Run 50 km	50,00	×1
✓ 33	7/12/2014	28th OTHTC High Desert 50K Ultra	50,00	×1
✓ 34	1/12/2013	27th OTHTC High Desert 50K Ultra	50,00	×1
✓ 35	19/10/2013	3rd Antelope Island 50K	50,00	×1
✓ 36	2/12/2012	26th OTHTC High Desert 50K Ultra	50,00	×1
✓ 37	4/12/2011	25th OTHTC High Desert 50K Ultra	50,00	×1
✓ 38	5/12/2010	24th OTHTC High Desert 50K Ultra	50,00	×1
✓ 39	23/4/2010	2nd Red Mountain 50K	50,00	×1
✓ 40	6/12/2009	23rd OTHTC High Desert 50K Ultra	50,00	×1
✓ 41	9/5/2009	11th Capon Valley 50K Run	50,00	×1
✓ 42	25/4/2009	2nd Chippewa Moraine 50km Ultra Marathon	50,00	×1
✓ 43	7/12/2008	22nd OTHTC High Desert 50K Ultra	50,00	×1
✓ 44	22/3/2008	3rd Antelope Island Buffalo Run 50 km	50,00	×1
✓ 45	2/12/2007	21st OTHTC High Desert 50K Ultra	50,00	×1
✓ 46	10/2/2007	9th Pemberton Trail 50 km	50,00	×1
✓ 47	3/12/2006	20th OTHTC High Desert 50K Ultra	50,00	×1
✓ 48	24/6/2006	14th Niagara Ultra 50 km	50,00	×1
✓ 49	23/4/2006	23rd Mt. Si 50 km Ultra Run	50,00	×1
✓ 50	25/2/2006	2nd 50km Silver Comet Ultra Run	50,00	×1
51	11/2/2006	8th Pemberton Trail 50 km	50,00	×1
52	28/1/2006	12th Mountain Mist 50k	50,00	×1
53	17/12/2005	Muir Beach Trail Run	50,00	×1
54	4/12/2005	19th OTHTC High Desert 50K Ultra	50,00	×1
55	3/12/2005	16th Sunmart Texas Trails 50 km	50,00	×1
56	29/10/2005	1st Goblin Valley Ultra 50k	50,00	×1
57	16/7/2005	6th Midnight Mountain 50K	50,00	×1
58	4/12/2004	18th OTHTC High Desert 50K Ultra	50,00	×1
59	7/12/2003	17th OTHTC High Desert 50K Ultra	50,00	×1
60	26/4/2003	8th McDonald Forest 50K Trail Run	50,00	×1
61	8/12/2002	16th OTHTC High Desert 50K Ultra	50,00	×1
62	9/12/2001	15th OTHTC High Desert 50K Ultra	50,00	×1
63	10/12/2000	14th OTHTC High Desert 50K Ultra	50,00	×1
64	9/9/2000	9th Bulldog 50k Ultra Run	50,00	×1
65	5/12/1999	13th OTHTC High Desert 50K Ultra	50,00	×1
66	11/9/1999	8th Bulldog 50k Ultra Run	50,00	×1
67	25/4/1999	25th Lake Waramaug 50km Ultra Marathon	50,00	×1
68	8/12/1996	10th OTHTC High Desert 50K Ultra	50,00	×1
69	11/12/1994	8th OTHTC High Desert 50K Ultra	50,00	×1
70	17/2/2024	11th Jackpot Ultra Running Festival 12 Hour Race	46,49	—
71	30/8/2024	5th Dusk to Dawn Relay Race	45,06	—