Robert Volkenand

Born : 1930 Cat. M95 Ultrarunner since 1979

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

53,2%

Rank quotient ?This runner's calculation uses 99 eligible race(s): Σ(rank − 1) = 4 770; Σ finishers = 8 974. 4 770 / 8 974 × 100 = 53.15%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed99

Km — ultra races13 298 km

> 100 km45

> 160 km38

> 200 km8

> 24h14

> 48h7

Longest race608,3 km

Gibson Ranch 6-Day Classic — 11/11/1995

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road47,3%

Trail52,7%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 32

🏅 Top 3 M3

Longest winning streak0

Current streak0

Records

50 km4h00'52 100 km9h03'12 50 mi6h52'07 100 mi20h33'00 6 h55,23 km 24 h182,09 km 48 h118,00 km 6 d608,33 km

HISTORY

99 race(s) · 6 split(s) nested

Date		Race	Perf.	Rk
2001
30.12	48h	19th Across the Years, 48h	118.000 km	9
2000
16.08	50km	2nd Bendistillery 50k	6:01:35 h	57
06.05	100km	5th Miwok 100k Trail race	16:08:07 h	147
29.04	50km	5th McDonald Forest 50K Trail Run	7:44:52 h	150
01.04	50mi	21st American River 50 Mile Endurance Run	11:56:49 h	363
11.03	50km	11th Way Too Cool 50K Endurance Run	7:42:36 h	451
1999
26.12	6d	17th Across the Years, 6 days	360.000 km	14
22.08	50km	1st Mt. Hood 50 km Trail Run	7:11:12 h	26
15.08	50km	1st Bendistillery 50k	5:48:47 h	60
24.04	50km	4th McDonald Forest 50K Trail Run	7:52:16 h	117
1998
25.10	50km	1st ORRC Autumn Leaves 50 km Run	5:42:08 h	19
10.10	50mi	16th Dick Collins Firetrails 50 Mile	11:48:40 h	82
29.08	50km	11th McKenzie River 50 km Trail Run	6:53:07 h	60
09.05	50mi	15th Quicksilver 50 Mile Endurance Run	11:26:32 h	47
03.05	50km	3rd McDonald Forest 50K Trail Run	7:56:02 h	88
1997
15.11	50mi	2nd Helen Klein Ultra Classic 50mi	10:04:55 h	83
20.10	50mi	15th Dick Collins Firetrails 50 Mile	11:56:54 h	80
17.07	135mi	11th Badwater Ultramarathon	2d 04:45:00 h	17
17.05	50km	12th Silver State 50 km	9:55:05 h	68
27.04	50km	2nd McDonald Forest 50K Trail Run	8:47:07 h	87
1996
06.09	100mi	17th Wasatch Front 100 Mile	34:42:42 h	81
29.06	100mi	23rd Western States 100 Mile Endurance Run	29:11:28 h	184
05.05	50km	1st McDonald Forest 50K Trail Run	7:08:34 h	48
27.04	50mi	California 50 Mile Endurance Run	10:57:12 h	49
1995
11.11	6d	Gibson Ranch 6-Day Classic	608.332 km	4
11.11	24h	Gibson Ranch 6-Day Classic - 24h Split	141.622 km	5
11.11	48h	Gibson Ranch 6-Day Classic - 48h Split	252.667 km	3 🥉
15.09	50mi	1st Monument Valley 50 Milers - Sunday event	10:24:10 h	11
08.09	100mi	16th Wasatch Front 100 Mile	35:40:11 h	104
13.05	50mi	14th Ice Age Trail 50 Mile Run	9:33:07 h	97
01.04	50mi	16th American River 50 Mile Endurance Run	9:31:25 h	249
1994
09.09	100mi	15th Wasatch Front 100 Mile	33:28:06 h	77
27.07	135mi	8th Badwater Ultramarathon	43:31:52 h	5
23.06	100mi	21st Western States 100 Mile Endurance Run	26:28:22 h	113
05.02	100km	100km Jed Smith Ultra Classic	11:37:45 h	51
1993
07.11	6d	4th Gibson Ranch 6-Day Classic	577.754 km	5
10.09	100mi	14th Wasatch Front 100 Mile	30:55:00 h	35
21.08	100mi	11th Leadville Trail 100 Mile	29:34:59 h	119
26.06	100mi	20th Western States 100 Mile Endurance Run	25:38:01 h	73
03.04	50mi	14th American River 50 Mile Endurance Run	9:01:19 h	184
01.01	6d	3rd Gibson Ranch 6-Day Classic	556.833 km	8
1992
11.09	100mi	13th Wasatch Front 100 Mile	32:41:17 h	56
27.06	100mi	19th Western States 100 Mile Endurance Run	23:37:40 h	60
16.05	50mi	8th Silver State 50 Miles	9:55:57 h	22
04.04	50mi	13th American River 50 Mile Endurance Run	8:35:27 h	130
1991
28.12	6d	2nd Gibson Ranch 6-Day Classic	514.990 km	10
13.09	100mi	12th Wasatch Front 100 Mile	32:45:41 h	34
29.06	100mi	18th Western States 100 Mile Endurance Run	23:21:22 h	75
08.06	50mi	1st Winterhawk 50 Mile Trail Run	9:55:50 h	37
09.02	100km	100km Jed Smith Ultra Classic	10:21:25 h	14
1990
29.12	6d	1st Gibson Ranch 6-Day Classic	497.287 km	15
29.09	24h	Megan's Run 24 Hour	61.126 km	40
19.05	50mi	7th Silver State 50 Miles	9:19:00 h	14
1989
31.12	24h	7th Across the Years, 24h	145.000 km	6
30.09	100mi	4th Angeles Crest 100 Mile	30:46:38 h	57
17.09	24h	Megan's Run 24 Hour	97.886 km	25
17.09	50mi	Megan's Run 24 Hour - 50mi Split	10:36:13 h	20
08.09	100mi	10th Wasatch Front 100 Mile	28:59:54 h	21
19.08	100mi	7th Leadville Trail 100 Mile	26:40:47 h	59
24.06	100mi	16th Western States 100 Mile Endurance Run	23:17:12 h	59
20.05	50mi	6th Silver State 50 Miles	9:04:30 h	5
09.04	50mi	10th American River 50 Mile Endurance Run	8:40:38 h	55
1988
24.09	100mi	3rd Angeles Crest 100 Mile	25:21:16 h	12
09.09	100mi	9th Wasatch Front 100 Mile	28:53:44 h	24
25.06	100mi	15th Western States 100 Mile Endurance Run	21:22:40 h	38
1987
19.09	24h	Megan's Run 24 Hour	142.024 km	10
11.09	100mi	8th Wasatch Front 100 Mile	31:09:41 h	31
1986
12.09	100mi	7th Wasatch Front 100 Mile	23:50:52 h	5
28.06	100mi	13th Western States 100 Mile Endurance Run	20:47:51 h	14
04.01	50mi	6th Avalon Benefit 50-Mile Run	7:47:33 h	8
1985
13.09	100mi	6th Wasatch Front 100 Mile	25:16:43 h	2 🥈
06.07	100mi	12th Western States 100 Mile Endurance Run	21:23:37 h	28
30.03	50mi	Oregon TAC 50 Mile Championchip	6:52:07 h	7
1984
11.11	50mi	Oregon RRC 50 Mile Ultramarathon	7:35:19 h	13
20.10	50mi	Coast Hills 50 Mile	7:46:41 h	5
07.09	100mi	5th Wasatch Front 100 Mile	31:41:56 h	14
09.06	100mi	6th Old Dominion 100 Mile Endurance Run	22:49:00 h	8
28.04	24h	Green Lake 24 Hour Run	106.860 km	11
11.03	50mi	Oregon TAC 50 Mile Championchip	7:19:15 h	11
1983
27.08	40mi	Timberline Trail	8:16:20 h	17
24.04	100km	3rd Yakima Valley Coca-Cola Ultramarathons 100 km	9:29:44 h	8
26.03	100mi	PCT Del Sur 100 Mile	23:18:33 h	7
13.03	50mi	Oregon TAC 50 Mile Championchip	7:14:14 h	12
1982
17.09	72mi	7th Lake Tahoe 72 Miler	11:47:43 h	14
28.08	40mi	Timberline Trail	7:51:13 h	10
26.06	93.5mi	9th Western States 100 Mile Endurance Run	22:44:00 h	48
25.04	100km	2nd Yakima Valley Coca-Cola Ultramarathons 100 km	9:15:10 h	5
28.03	50mi	Oregon RRC 50 Mile Ultramarathon	7:32:04 h	9
30.01	6h	Mudder Fell Six Hour	55.232 km	9
1981
17.10	24h	West Hills 24 Hour Track Run	166.400 km	5
17.10	100mi	West Hills 24 Hour Track Run - 100mi Split	23:06:02 h	5
18.09	72mi	6th Lake Tahoe 72 Miler	11:49:17 h	16
22.08	40mi	Timberline Trail	8:02:51 h	8
16.05	100mi	Donner Trail 100 Miler	20:33:00 h	6
03.05	100km	1st Yakima Valley Coca-Cola Ultramarathons 100 km	9:03:12 h	5
18.04	50km	National TAC 50 km Championship	4:16:47 h	12
11.04	50mi	Oregon RRC 50 Mile Run	6:57:34 h	9
15.02	50mi	4th Jed Smith Ultra Classic - 50 Mile Race	7:50:37 h	55
31.01	100km	Ultra Oregon 100 km	9:22:47 h	6
1980
02.08	24h	West Hills Striders 24-Hour Run	182.085 km	3 🥉
02.08	100km	West Hills Striders 24-Hour Run - 100km Split	10:11:26 h	6
02.08	100mi	West Hills Striders 24-Hour Run - 100mi Split	17:48:06 h	3 🥉
04.05	100km	2nd Yakima Ultramarathons 100km	9:34:22 h	8
19.04	50km	Oregon AAU 50-km Championship	4:00:52 h	7
1979
13.10	50mi	National AAU 50 Mile Championships	7:09:09 h	33

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	11/11/1995	Gibson Ranch 6-Day Classic	608,33	×7
✓ 2	7/11/1993	4th Gibson Ranch 6-Day Classic	577,75	×6
✓ 3	1/1/1993	3rd Gibson Ranch 6-Day Classic	556,83	×6
✓ 4	28/12/1991	2nd Gibson Ranch 6-Day Classic	514,99	×6
✓ 5	29/12/1990	1st Gibson Ranch 6-Day Classic	497,29	×5
✓ 6	26/12/1999	17th Across the Years, 6 days	360,00	×4
✓ 7	17/7/1997	11th Badwater Ultramarathon	217,26	×2
✓ 8	27/7/1994	8th Badwater Ultramarathon	217,26	×2
✓ 9	2/8/1980	West Hills Striders 24-Hour Run	182,09	×2
✓ 10	17/10/1981	West Hills 24 Hour Track Run	166,40	×1
✓ 11	6/9/1996	17th Wasatch Front 100 Mile	160,93	×1
✓ 12	29/6/1996	23rd Western States 100 Mile Endurance Run	160,93	×1
✓ 13	8/9/1995	16th Wasatch Front 100 Mile	160,93	×1
✓ 14	9/9/1994	15th Wasatch Front 100 Mile	160,93	×1
✓ 15	23/6/1994	21st Western States 100 Mile Endurance Run	160,93	×1
✓ 16	10/9/1993	14th Wasatch Front 100 Mile	160,93	×1
✓ 17	21/8/1993	11th Leadville Trail 100 Mile	160,93	×1
✓ 18	26/6/1993	20th Western States 100 Mile Endurance Run	160,93	×1
✓ 19	11/9/1992	13th Wasatch Front 100 Mile	160,93	×1
✓ 20	27/6/1992	19th Western States 100 Mile Endurance Run	160,93	×1
✓ 21	13/9/1991	12th Wasatch Front 100 Mile	160,93	×1
✓ 22	29/6/1991	18th Western States 100 Mile Endurance Run	160,93	×1
✓ 23	30/9/1989	4th Angeles Crest 100 Mile	160,93	×1
✓ 24	8/9/1989	10th Wasatch Front 100 Mile	160,93	×1
✓ 25	19/8/1989	7th Leadville Trail 100 Mile	160,93	×1
✓ 26	24/6/1989	16th Western States 100 Mile Endurance Run	160,93	×1
✓ 27	24/9/1988	3rd Angeles Crest 100 Mile	160,93	×1
✓ 28	9/9/1988	9th Wasatch Front 100 Mile	160,93	×1
✓ 29	25/6/1988	15th Western States 100 Mile Endurance Run	160,93	×1
✓ 30	11/9/1987	8th Wasatch Front 100 Mile	160,93	×1
✓ 31	12/9/1986	7th Wasatch Front 100 Mile	160,93	×1
✓ 32	28/6/1986	13th Western States 100 Mile Endurance Run	160,93	×1
✓ 33	13/9/1985	6th Wasatch Front 100 Mile	160,93	×1
✓ 34	6/7/1985	12th Western States 100 Mile Endurance Run	160,93	×1
✓ 35	7/9/1984	5th Wasatch Front 100 Mile	160,93	×1
✓ 36	9/6/1984	6th Old Dominion 100 Mile Endurance Run	160,93	×1
✓ 37	26/3/1983	PCT Del Sur 100 Mile	160,93	×1
✓ 38	16/5/1981	Donner Trail 100 Miler	160,93	×1
✓ 39	26/6/1982	9th Western States 100 Mile Endurance Run	150,47	×1
✓ 40	31/12/1989	7th Across the Years, 24h	145,00	×1
✓ 41	19/9/1987	Megan's Run 24 Hour	142,02	×1
✓ 42	30/12/2001	19th Across the Years, 48h	118,00	×1
✓ 43	17/9/1982	7th Lake Tahoe 72 Miler	115,87	×1
✓ 44	18/9/1981	6th Lake Tahoe 72 Miler	115,87	×1
✓ 45	28/4/1984	Green Lake 24 Hour Run	106,86	×1
✓ 46	6/5/2000	5th Miwok 100k Trail race	100,00	×1
✓ 47	5/2/1994	100km Jed Smith Ultra Classic	100,00	×1
✓ 48	9/2/1991	100km Jed Smith Ultra Classic	100,00	×1
✓ 49	24/4/1983	3rd Yakima Valley Coca-Cola Ultramarathons 100 km	100,00	×1
✓ 50	25/4/1982	2nd Yakima Valley Coca-Cola Ultramarathons 100 km	100,00	×1
✓ 51	3/5/1981	1st Yakima Valley Coca-Cola Ultramarathons 100 km	100,00	×1
✓ 52	31/1/1981	Ultra Oregon 100 km	100,00	×1
✓ 53	4/5/1980	2nd Yakima Ultramarathons 100km	100,00	×1
✓ 54	17/9/1989	Megan's Run 24 Hour	97,89	×1
✓ 55	1/4/2000	21st American River 50 Mile Endurance Run	80,47	—
✓ 56	10/10/1998	16th Dick Collins Firetrails 50 Mile	80,47	—
✓ 57	9/5/1998	15th Quicksilver 50 Mile Endurance Run	80,47	—
✓ 58	15/11/1997	2nd Helen Klein Ultra Classic 50mi	80,47	—
✓ 59	20/10/1997	15th Dick Collins Firetrails 50 Mile	80,47	—
✓ 60	27/4/1996	California 50 Mile Endurance Run	80,47	—
✓ 61	15/9/1995	1st Monument Valley 50 Milers - Sunday event	80,47	—
✓ 62	13/5/1995	14th Ice Age Trail 50 Mile Run	80,47	—
✓ 63	1/4/1995	16th American River 50 Mile Endurance Run	80,47	—
✓ 64	3/4/1993	14th American River 50 Mile Endurance Run	80,47	—
✓ 65	16/5/1992	8th Silver State 50 Miles	80,47	—
✓ 66	4/4/1992	13th American River 50 Mile Endurance Run	80,47	—
✓ 67	8/6/1991	1st Winterhawk 50 Mile Trail Run	80,47	—
✓ 68	19/5/1990	7th Silver State 50 Miles	80,47	—
✓ 69	20/5/1989	6th Silver State 50 Miles	80,47	—
✓ 70	9/4/1989	10th American River 50 Mile Endurance Run	80,47	—
✓ 71	4/1/1986	6th Avalon Benefit 50-Mile Run	80,47	—
✓ 72	30/3/1985	Oregon TAC 50 Mile Championchip	80,47	—
✓ 73	11/11/1984	Oregon RRC 50 Mile Ultramarathon	80,47	—
✓ 74	20/10/1984	Coast Hills 50 Mile	80,47	—
✓ 75	11/3/1984	Oregon TAC 50 Mile Championchip	80,47	—
✓ 76	13/3/1983	Oregon TAC 50 Mile Championchip	80,47	—
✓ 77	28/3/1982	Oregon RRC 50 Mile Ultramarathon	80,47	—
✓ 78	11/4/1981	Oregon RRC 50 Mile Run	80,47	—
✓ 79	15/2/1981	4th Jed Smith Ultra Classic - 50 Mile Race	80,47	—
✓ 80	13/10/1979	National AAU 50 Mile Championships	80,47	—
81	27/8/1983	Timberline Trail	64,37	—
82	28/8/1982	Timberline Trail	64,37	—
83	22/8/1981	Timberline Trail	64,37	—
84	29/9/1990	Megan's Run 24 Hour	61,13	—
85	30/1/1982	Mudder Fell Six Hour	55,23	—
86	16/8/2000	2nd Bendistillery 50k	50,00	—
87	29/4/2000	5th McDonald Forest 50K Trail Run	50,00	—
88	11/3/2000	11th Way Too Cool 50K Endurance Run	50,00	—
89	22/8/1999	1st Mt. Hood 50 km Trail Run	50,00	—
90	15/8/1999	1st Bendistillery 50k	50,00	—
91	24/4/1999	4th McDonald Forest 50K Trail Run	50,00	—
92	25/10/1998	1st ORRC Autumn Leaves 50 km Run	50,00	—
93	29/8/1998	11th McKenzie River 50 km Trail Run	50,00	—
94	3/5/1998	3rd McDonald Forest 50K Trail Run	50,00	—
95	17/5/1997	12th Silver State 50 km	50,00	—
96	27/4/1997	2nd McDonald Forest 50K Trail Run	50,00	—
97	5/5/1996	1st McDonald Forest 50K Trail Run	50,00	—
98	18/4/1981	National TAC 50 km Championship	50,00	—
99	19/4/1980	Oregon AAU 50-km Championship	50,00	—