David Just

Born : 1960 Cat. M65 Ultrarunner since 1993

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

45,4%

Rank quotient ?This runner's calculation uses 110 eligible race(s): Σ(rank − 1) = 6 492; Σ finishers = 14 296. 6 492 / 14 296 × 100 = 45.41%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed110

Km — ultra races8 024 km

> 100 km11

> 160 km9

> 24h5

Longest race160,9 km

26th Kettle Moraine 100 Mile Endurance Run — 12/6/2021

Km per year (ultra races)

110

2022

190

2023

140

2024

240

2025

150

2026

Race types (share of distance)

Road8,4%

Trail91,6%

Records

50 km4h37'49 100 km12h17'57 50 mi9h02'30 100 mi23h30'46 12 h65,02 km 24 h128,91 km

HISTORY

110 race(s)

Date		Race	Perf.	Rk
2026
04.07	50km	33rd Afton Trail Run 50K	7:14:22 h	195
13.06	50km	31st Kettle Moraine 50 km Endurance Run	7:24:26 h	41
02.05	50km	36th Trail Mix Race	6:41:07 h	36
2025
04.10	50km	5th Fire Tower 50 km Trail Race	8:45:24 h	99
05.07	50km	32nd Afton Trail Run 50K	6:45:16 h	111
10.05	50mi	44th Ice Age Trail 50 Mile Run	11:12:07 h	122
12.04	60km	10th Whiskey Basin 60 km Trail Run	8:28:18 h	37
2024
11.05	50mi	43th Ice Age Trail 50 Mile Run	10:55:50 h	147
13.04	60km	9th Whiskey Basin 60 km Trail Run	8:16:58 h	29
2023
01.07	50km	30th Afton Trail Run 50K	6:03:50 h	94
13.05	50mi	42th Ice Age Trail 50 Mile Run	10:39:12 h	123
15.04	60km	8th Whiskey Basin 60 km Trail Run	8:08:31 h	36
2022
12.11	50km	13th Pass Mountain 50 km Race	6:22:38 h	33
23.04	60km	7th Whiskey Basin 60 km Trail Run	8:11:49 h	29
2021
13.11	50km	12th Pass Mountain 50 km Race	6:37:55 h	16
23.10	50km	14th Surf the Murph 50 km Run	5:58:30 h	7
11.09	50mi	40th Ice Age Trail 50 Mile Run	11:03:08 h	60
03.07	50km	28th Afton Trail Run 50K	6:00:47 h	54
12.06	100mi	26th Kettle Moraine 100 Mile Endurance Run	29:37:48 h	60
15.05	50mi	22nd Berryman 50 Mile	12:33:18 h	30
17.04	60km	6th Whiskey Basin 60 km Trail Run	8:02:38 h	45
2020
05.12	50km	11th McDowell Mountain Frenzy 50 km	6:13:29 h	46
14.11	50km	11th Pass Mountain 50 km Race	6:23:19 h	25
24.10	50mi	13th Surf the Murph 50 Mile Run	10:42:53 h	9
2019
16.11	50km	10th Pass Mountain 50 km Race	6:30:00 h	26
19.10	50mi	12th Surf the Murph 50 Mile Run	10:15:26 h	11
06.07	50km	26th Afton Trail Run 50K	5:52:56 h	75
01.06	100mi	24th Kettle Moraine 100 Mile Endurance Run	26:39:36 h	67
11.05	50mi	38th Ice Age Trail 50 Mile Run	10:02:37 h	136
13.04	60km	4th Whiskey Basin 60 km Trail Run	7:58:44 h	32
2018
28.10	50km	4th Hixon 50	6:57:33 h	55
28.07	50mi	37th Minnesota Voyageur Trail 50 Mile Ultra	11:36:32 h	197
07.07	50km	25th Afton Trail Run 50K	5:57:43 h	89
12.05	50mi	37th Ice Age Trail 50 Mile Run	10:07:20 h	114
14.04	57km	3rd Whiskey Basin 57 km Trail Run	7:56:49 h	29
2017
18.11	50km	8th Pass Mountain 50 km Race	6:04:38 h	19
13.05	50mi	36th Ice Age Trail 50 Mile Run	10:23:25 h	92
29.04	50km	10th Chippewa Moraine 50km Ultra Marathon	6:08:06 h	63
22.04	50km	27th Trail Mix Race	5:10:43 h	37
2016
02.07	50km	23rd Afton Trail Run 50K	5:39:57 h	61
16.04	50km	26th Trail Mix Race	5:38:07 h	45
2015
24.10	50mi	8th Surf the Murph 50 Mile Run	10:30:32 h	29
04.07	50km	22nd Afton Trail Run 50K	5:48:47 h	62
18.04	50km	25th Trail Mix Race	4:54:01 h	25
2014
05.07	50km	21st Afton Trail Run 50K	5:42:22 h	54
2013
26.10	50mi	6th Surf the Murph 50 Mile Run	9:02:30 h	16
06.07	50km	20th Afton Trail Run 50K	5:30:59 h	44
20.04	50km	23rd Trail Mix Race	4:53:31 h	14
2012
21.04	50km	22nd Trail Mix Race	4:55:38 h	53
2011
29.10	50mi	4th Surf the Murph 50 Mile Run	9:37:00 h	12
25.06	100mi	1st Black Hills 100 Mile Run	29:31:26 h	12
14.05	50mi	30th Ice Age Trail 50 Mile Run	9:12:13 h	59
16.04	50km	21st Trail Mix Race	4:39:38 h	24
2010
30.10	50mi	3rd Surf the Murph 50 Mile Run	9:35:00 h	11
24.07	50mi	29th Minnesota Voyageur Trail 50 Mile Ultra	9:49:06 h	29
03.07	50km	17th Afton Trail Run 50K	5:22:38 h	17
17.04	50km	20th Trail Mix Race	4:37:49 h	26
2009
31.10	50mi	2nd Surf the Murph 50 Mile Run	9:57:27 h	10
18.04	50km	19th Trail Mix Race	5:21:02 h	32
2008
01.11	50km	1st Surf the Murph 50 km Run	6:40:00 h	16
19.04	50km	18th Trail Mix Race	4:45:20 h	25
12.04	50km	1st Chippewa Moraine 50km Ultra Marathon	8:20:04 h	112
2007
24.04	50km	17th Trail Mix Race	5:10:22 h	43
2006
01.07	50km	13th Afton Trail Run 50K	6:05:50 h	33
13.05	50mi	25th Ice Age Trail 50 Mile Run	10:58:01 h	163
22.04	50km	16th Trail Mix Race	5:27:30 h	60
2005
27.08	100mi	1st Lean Horse Ultra-Marathon 100 Mile	26:07:10 h	36
30.07	50mi	24th Minnesota Voyageur Trail 50 Mile Ultra	11:01:15 h	34
04.06	12h	16th FANS 12 Hour Run	45.528 km	28
14.05	50mi	24th Ice Age Trail 50 Mile Run	10:09:26 h	102
23.04	50km	15th Trail Mix Race	5:50:46 h	62
2004
10.10	50mi	18th Glacial Trail 50 Mile Race	10:46:32 h	33
03.07	50km	11th Afton Trail Run 50K	5:36:49 h	17
08.05	50mi	23th Ice Age Trail 50 Mile Run	10:26:41 h	135
24.04	50km	14th Trail Mix Race	5:16:48 h	30
2003
12.10	50mi	17th Glacial Trail 50 Mile Race	11:16:39 h	28
26.07	50mi	22nd Minnesota Voyageur Trail 50 Mile Ultra	11:48:08 h	18
07.06	12h	14th FANS 12 Hour Run	65.017 km	16
10.05	50mi	22th Ice Age Trail 50 Mile Run	11:00:15 h	205
2002
13.10	50mi	16th Glacial Trail 50 Mile Race	10:48:10 h	19
01.06	100mi	7th Kettle Moraine 100 Mile Endurance Run	26:36:14 h	21
11.05	50mi	21th Ice Age Trail 50 Mile Run	9:48:55 h	100
2001
28.07	50mi	20th Minnesota Voyageur Trail 50 Mile Ultra	10:29:03 h	40
07.07	50km	8th Afton Trail Run 50K	5:37:00 h	19
23.06	24h	12th FANS 24 Hour Runs	82.028 km	70
10.05	50mi	20th Ice Age Trail 50 Mile Run	9:58:28 h	144
21.04	50km	12th Trail Mix Race	5:49:51 h	45
2000
29.07	50mi	19th Minnesota Voyageur Trail 50 Mile Ultra	12:28:43 h	76
02.06	100mi	5th Kettle Moraine 100 Mile Endurance Run	24:12:44 h	30
13.05	50mi	19th Ice Age Trail 50 Mile Run	9:43:06 h	154
22.04	50km	11th Trail Mix Race	4:52:06 h	24
1999
24.07	50mi	18th Minnesota Voyageur Trail 50 Mile Ultra	12:08:03 h	55
26.06	24h	10th FANS 24 Hour Runs	82.028 km	71
04.06	100mi	4th Kettle Moraine 100 Mile Endurance Run	26:08:07 h	37
08.05	50mi	18th Ice Age Trail 50 Mile Run	9:29:29 h	139
17.04	50km	10th Trail Mix Race	5:27:04 h	43
1998
27.06	24h	9th FANS 24 Hour Runs	128.908 km	34
16.05	50mi	17th Ice Age Trail 50 Mile Run	10:01:00 h	146
18.04	50km	9th Trail Mix Race	5:19:49 h	71
1997
19.07	100mi	9th Vermont 100 Mile Endurance Race	23:30:46 h	95
05.07	50km	4th Afton Trail Run 50K	4:54:46 h	15
28.06	24h	8th FANS 24 Hour Runs	56.970 km	102
17.05	50mi	16th Ice Age Trail 50 Mile Run	10:08:41 h	207
1996
24.08	100mi	14th Leadville Trail 100 Mile	29:14:23 h	117
27.07	50mi	15th Minnesota Voyageur Trail 50 Mile Ultra	10:44:49 h	38
06.07	50km	3rd Afton Trail Run 50K	5:08:23 h	11
29.06	24h	7th FANS 24 Hour Runs	109.596 km	52
18.05	50mi	15th Ice Age Trail 50 Mile Run	10:28:59 h	90
1995
13.05	50mi	14th Ice Age Trail 50 Mile Run	10:09:52 h	150
1993
23.10	100km	10th Edmund Fitzgerald 100K Road Race	12:17:57 h	30

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	12/6/2021	26th Kettle Moraine 100 Mile Endurance Run	160,93	×2
✓ 2	1/6/2019	24th Kettle Moraine 100 Mile Endurance Run	160,93	×2
✓ 3	25/6/2011	1st Black Hills 100 Mile Run	160,93	×2
✓ 4	27/8/2005	1st Lean Horse Ultra-Marathon 100 Mile	160,93	×2
✓ 5	1/6/2002	7th Kettle Moraine 100 Mile Endurance Run	160,93	×2
✓ 6	2/6/2000	5th Kettle Moraine 100 Mile Endurance Run	160,93	×2
✓ 7	4/6/1999	4th Kettle Moraine 100 Mile Endurance Run	160,93	×2
✓ 8	19/7/1997	9th Vermont 100 Mile Endurance Race	160,93	×2
✓ 9	24/8/1996	14th Leadville Trail 100 Mile	160,93	×2
✓ 10	27/6/1998	9th FANS 24 Hour Runs	128,91	×2
✓ 11	29/6/1996	7th FANS 24 Hour Runs	109,60	×1
✓ 12	23/10/1993	10th Edmund Fitzgerald 100K Road Race	100,00	×1
✓ 13	23/6/2001	12th FANS 24 Hour Runs	82,03	×1
✓ 14	26/6/1999	10th FANS 24 Hour Runs	82,03	×1
✓ 15	10/5/2025	44th Ice Age Trail 50 Mile Run	80,47	×1
✓ 16	11/5/2024	43th Ice Age Trail 50 Mile Run	80,47	×1
✓ 17	13/5/2023	42th Ice Age Trail 50 Mile Run	80,47	×1
✓ 18	11/9/2021	40th Ice Age Trail 50 Mile Run	80,47	×1
✓ 19	15/5/2021	22nd Berryman 50 Mile	80,47	×1
✓ 20	24/10/2020	13th Surf the Murph 50 Mile Run	80,47	×1
✓ 21	19/10/2019	12th Surf the Murph 50 Mile Run	80,47	×1
✓ 22	11/5/2019	38th Ice Age Trail 50 Mile Run	80,47	×1
✓ 23	28/7/2018	37th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 24	12/5/2018	37th Ice Age Trail 50 Mile Run	80,47	×1
✓ 25	13/5/2017	36th Ice Age Trail 50 Mile Run	80,47	×1
✓ 26	24/10/2015	8th Surf the Murph 50 Mile Run	80,47	×1
✓ 27	26/10/2013	6th Surf the Murph 50 Mile Run	80,47	×1
✓ 28	29/10/2011	4th Surf the Murph 50 Mile Run	80,47	×1
✓ 29	14/5/2011	30th Ice Age Trail 50 Mile Run	80,47	×1
✓ 30	30/10/2010	3rd Surf the Murph 50 Mile Run	80,47	×1
✓ 31	24/7/2010	29th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 32	31/10/2009	2nd Surf the Murph 50 Mile Run	80,47	×1
✓ 33	13/5/2006	25th Ice Age Trail 50 Mile Run	80,47	×1
✓ 34	30/7/2005	24th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 35	14/5/2005	24th Ice Age Trail 50 Mile Run	80,47	×1
✓ 36	10/10/2004	18th Glacial Trail 50 Mile Race	80,47	×1
✓ 37	8/5/2004	23th Ice Age Trail 50 Mile Run	80,47	×1
✓ 38	12/10/2003	17th Glacial Trail 50 Mile Race	80,47	×1
✓ 39	26/7/2003	22nd Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 40	10/5/2003	22th Ice Age Trail 50 Mile Run	80,47	×1
✓ 41	13/10/2002	16th Glacial Trail 50 Mile Race	80,47	×1
✓ 42	11/5/2002	21th Ice Age Trail 50 Mile Run	80,47	×1
✓ 43	28/7/2001	20th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 44	10/5/2001	20th Ice Age Trail 50 Mile Run	80,47	×1
✓ 45	29/7/2000	19th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 46	13/5/2000	19th Ice Age Trail 50 Mile Run	80,47	×1
✓ 47	24/7/1999	18th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 48	8/5/1999	18th Ice Age Trail 50 Mile Run	80,47	×1
✓ 49	16/5/1998	17th Ice Age Trail 50 Mile Run	80,47	×1
✓ 50	17/5/1997	16th Ice Age Trail 50 Mile Run	80,47	×1
✓ 51	27/7/1996	15th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 52	18/5/1996	15th Ice Age Trail 50 Mile Run	80,47	×1
✓ 53	13/5/1995	14th Ice Age Trail 50 Mile Run	80,47	×1
✓ 54	7/6/2003	14th FANS 12 Hour Run	65,02	×1
✓ 55	12/4/2025	10th Whiskey Basin 60 km Trail Run	60,00	—
✓ 56	13/4/2024	9th Whiskey Basin 60 km Trail Run	60,00	—
✓ 57	15/4/2023	8th Whiskey Basin 60 km Trail Run	60,00	—
✓ 58	23/4/2022	7th Whiskey Basin 60 km Trail Run	60,00	—
✓ 59	17/4/2021	6th Whiskey Basin 60 km Trail Run	60,00	—
✓ 60	13/4/2019	4th Whiskey Basin 60 km Trail Run	60,00	—
61	14/4/2018	3rd Whiskey Basin 57 km Trail Run	57,00	—
62	28/6/1997	8th FANS 24 Hour Runs	56,97	—
63	4/7/2026	33rd Afton Trail Run 50K	50,00	—
64	13/6/2026	31st Kettle Moraine 50 km Endurance Run	50,00	—
65	2/5/2026	36th Trail Mix Race	50,00	—
66	4/10/2025	5th Fire Tower 50 km Trail Race	50,00	—
67	5/7/2025	32nd Afton Trail Run 50K	50,00	—
68	1/7/2023	30th Afton Trail Run 50K	50,00	—
69	12/11/2022	13th Pass Mountain 50 km Race	50,00	—
70	13/11/2021	12th Pass Mountain 50 km Race	50,00	—
71	23/10/2021	14th Surf the Murph 50 km Run	50,00	—
72	3/7/2021	28th Afton Trail Run 50K	50,00	—
73	5/12/2020	11th McDowell Mountain Frenzy 50 km	50,00	—
74	14/11/2020	11th Pass Mountain 50 km Race	50,00	—
75	16/11/2019	10th Pass Mountain 50 km Race	50,00	—
76	6/7/2019	26th Afton Trail Run 50K	50,00	—
77	28/10/2018	4th Hixon 50	50,00	—
78	7/7/2018	25th Afton Trail Run 50K	50,00	—
79	18/11/2017	8th Pass Mountain 50 km Race	50,00	—
80	29/4/2017	10th Chippewa Moraine 50km Ultra Marathon	50,00	—
81	22/4/2017	27th Trail Mix Race	50,00	—
82	2/7/2016	23rd Afton Trail Run 50K	50,00	—
83	16/4/2016	26th Trail Mix Race	50,00	—
84	4/7/2015	22nd Afton Trail Run 50K	50,00	—
85	18/4/2015	25th Trail Mix Race	50,00	—
86	5/7/2014	21st Afton Trail Run 50K	50,00	—
87	6/7/2013	20th Afton Trail Run 50K	50,00	—
88	20/4/2013	23rd Trail Mix Race	50,00	—
89	21/4/2012	22nd Trail Mix Race	50,00	—
90	16/4/2011	21st Trail Mix Race	50,00	—
91	3/7/2010	17th Afton Trail Run 50K	50,00	—
92	17/4/2010	20th Trail Mix Race	50,00	—
93	18/4/2009	19th Trail Mix Race	50,00	—
94	1/11/2008	1st Surf the Murph 50 km Run	50,00	—
95	19/4/2008	18th Trail Mix Race	50,00	—
96	12/4/2008	1st Chippewa Moraine 50km Ultra Marathon	50,00	—
97	24/4/2007	17th Trail Mix Race	50,00	—
98	1/7/2006	13th Afton Trail Run 50K	50,00	—
99	22/4/2006	16th Trail Mix Race	50,00	—
100	23/4/2005	15th Trail Mix Race	50,00	—
101	3/7/2004	11th Afton Trail Run 50K	50,00	—
102	24/4/2004	14th Trail Mix Race	50,00	—
103	7/7/2001	8th Afton Trail Run 50K	50,00	—
104	21/4/2001	12th Trail Mix Race	50,00	—
105	22/4/2000	11th Trail Mix Race	50,00	—
106	17/4/1999	10th Trail Mix Race	50,00	—
107	18/4/1998	9th Trail Mix Race	50,00	—
108	5/7/1997	4th Afton Trail Run 50K	50,00	—
109	6/7/1996	3rd Afton Trail Run 50K	50,00	—
110	4/6/2005	16th FANS 12 Hour Run	45,53	—