Joseph Schieffer

Born : 1951 Cat. M75 Ultrarunner since 1978

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 ?

Spain

United Kingdom

Italy

South Africa

United States

6,5%

Rank quotient ?This runner's calculation uses 99 eligible race(s): Σ(rank − 1) = 1 792; Σ finishers = 27 529. 1 792 / 27 529 × 100 = 6.51%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed99

Km — ultra races7 517 km

> 100 km10

> 160 km7

> 200 km1

> 24h5

> 48h3

Longest race201,2 km

1st A Race for the Ages — 4/9/2015

Km per year (ultra races)

161

2022

2023

2024

2025

2026

Race types (share of distance)

Road46,7%

Trail53,3%

Wins & podiums (ultra)

🏆 Win5

🏆 Win M5

🏅 Top 321

🏅 Top 3 M21

Longest winning streak1

Current streak0

Records

50 km3h18'03 100 km7h39'39 50 mi5h35'10 100 mi18h49'03 24 h161,34 km 48 h160,93 km

HISTORY

101 race(s)

Date		Race	Perf.	Rk
2022
13.05	48h	14th 3 Days at the Fair 48 Hour Race	160.934 km	29
2019
04.08	50km	38th Skyline 50k Endurance Run	5:49:51 h	51
2015
04.09	84h	1st A Race for the Ages	201.168 km	35
2014
03.08	50km	33rd Skyline 50k Endurance Run	5:43:24 h	76
01.02	50km	36th Jed Smith Ultra Classic - 50 km Race	4:36:05 h	25
2008
02.02	50km	30th Jed Smith Ultra Classic - 50 km Race	4:14:02 h	14
2007
26.08	31.5mi	10th Tamalpa Headlands 50K	5:10:38 h	27
05.08	50km	26th Skyline 50k Endurance Run	4:30:55 h	9
04.03	50km	5th Caumsett Park 50K Lloyd Neck	3:52:23 h	11
03.02	50km	29th Jed Smith Ultra Classic - 50 km Race	3:56:32 h	10
2006
25.11	28mi	22nd Quad Dipsea Trail Run	5:12:26 h	35
26.08	31.5mi	9th Tamalpa Headlands 50K	5:10:39 h	30
06.08	50km	25th Skyline 50k Endurance Run	4:33:21 h	11
2005
27.08	31.5mi	8th Tamalpa Headlands 50K	5:03:56 h	30
07.08	50km	24th Skyline 50k Endurance Run	4:26:25 h	5
05.02	50km	27th Jed Smith Ultra Classic - 50 km Race	3:42:36 h	8
2004
07.02	50mi	26th Jed Smith Ultra Classic - 50 Mile Race	6:26:01 h	1 🏆
2003
23.08	31.5mi	6th Tamalpa Headlands 50K	4:58:41 h	34
18.05	50km	16th Ohlone 50K Wilderness Run	5:48:43 h	16
08.02	50km	25th Jed Smith Ultra Classic - 50 km Race	3:47:50 h	11
2002
12.10	50mi	20th Dick Collins Firetrails 50 Mile	8:05:36 h	12
14.09	53.2mi	16th Sierra Nevada Endurance 53 Mile Run	10:28:11 h	11
24.08	31.5mi	5th Tamalpa Headlands 50K	5:01:52 h	42
04.08	50km	21st Skyline 50k Endurance Run	4:28:59 h	7
04.05	100km	7th Miwok 100k Trail race	11:02:10 h	33
20.04	50km	16th Ruth Anderson Ultra 50mi - 50km Split	3:54:26 h	1 🏆
20.04	50mi	16th Ruth Anderson Ultra 50mi	6:21:26 h	1 🏆
2001
10.11	50mi	6th Helen Klein Ultra Classic 50mi	6:47:04 h	3 🥉
13.10	50mi	19th Dick Collins Firetrails 50 Mile	8:32:15 h	12
25.08	31.5mi	4th Tamalpa Headlands 50K	4:58:26 h	17
23.06	100mi	28th Western States 100 Mile Endurance Run	25:44:03 h	110
12.05	50km	18th Quicksilver 50 km Endurance Run	4:28:02 h	3 🥉
05.05	100km	6th Miwok 100k Trail race	10:22:27 h	11
21.04	50mi	15th Ruth Anderson Ultra 50mi	6:26:19 h	1 🏆
10.03	50km	12th Way Too Cool 50K Endurance Run	4:40:21 h	47
2000
11.11	50mi	5th Helen Klein Ultra Classic 50mi	6:24:47 h	2 🥈
05.08	50km	19th Skyline 50k Endurance Run	4:13:18 h	7
13.05	50km	17th Quicksilver 50 km Endurance Run	4:22:02 h	8
01.04	50mi	21st American River 50 Mile Endurance Run	7:23:54 h	16
12.02	50km	22nd Jed Smith Ultra Classic - 50 km Race	3:45:48 h	9
1999
13.11	50mi	4th Helen Klein Ultra Classic 50mi	6:14:08 h	7
01.05	100km	4th Miwok 100k Trail race	10:17:58 h	9
10.04	50mi	20th American River 50 Mile Endurance Run	7:11:57 h	27
13.03	50km	10th Way Too Cool 50K Endurance Run	4:12:04 h	15
13.02	50km	21st Jed Smith Ultra Classic - 50 km Race	3:28:22 h	5
1998
12.12	50mi	9th Sunmart Texas Trails 50 Mile	6:45:58 h	6
14.11	50mi	3rd Helen Klein Ultra Classic 50mi	6:22:52 h	8
16.05	50mi	17th Ice Age Trail 50 Mile Run	7:17:57 h	8
04.04	50mi	19th American River 50 Mile Endurance Run	6:39:38 h	12
07.02	50km	20th Jed Smith Ultra Classic - 50 km Race	3:42:09 h	4
12.01	47km	Epiphany Ultras - The Popular But Wussy Metric	4:02:00 h	2 🥈
1997
15.11	50mi	2nd Helen Klein Ultra Classic 50mi	6:06:09 h	6
06.09	50km	3rd Point Reyes 50K	4:34:42 h	10
28.06	100mi	24th Western States 100 Mile Endurance Run	25:53:53 h	121
10.05	50km	14th Quicksilver 50 km Endurance Run	4:10:49 h	5
19.04	50mi	12th Ruth Anderson Ultra 100km - 50mi Split	6:07:44 h	2 🥈
19.04	100km	12th Ruth Anderson Ultra 100km	7:39:39 h	2 🥈
05.04	50mi	18th American River 50 Mile Endurance Run	6:33:32 h	10
18.01	50km	19th Jed Smith Ultra Classic - 50 km Race	3:24:24 h	2 🥈
1996
30.11	28mi	12th Quad Dipsea Trail Run	4:32:22 h	6
12.10	50mi	14th Dick Collins Firetrails 50 Mile	8:03:29 h	12
24.08	50km	2nd Point Reyes 50K	4:49:35 h	15
03.08	50km	15th Skyline 50k Endurance Run	4:13:17 h	7
17.06	87km	71st Comrades Marathon - Up Run	6:46:36 h	221
03.02	50km	18th Jed Smith Ultra Classic - 50 km Race	3:18:03 h	3 🥉
1995
02.09	50km	1st Point Reyes 50K	4:19:45 h	4
06.08	50km	14th Skyline 50k Endurance Run	3:58:21 h	3 🥉
1993
03.04	50mi	14th American River 50 Mile Endurance Run	6:39:55 h	11
06.02	50mi	15th Jed Smith Ultra Classic - 50 Mile Race	5:38:57 h	1 🏆
1992
16.02	100km	IAU 100km WC Palamos (V. 100km de la Costa Brava) - open race	8:26:58 h	96
16.02	100km	IAU 100km WC Palamos (V. 100km de la Costa Brava)	8:26:58 h	59
1991
25.05	100km	IAU 100km WC Firenze (19^ 100 km del Passatore)	7:44:23 h	23
09.02	50mi	13th Jed Smith Ultra Classic - 50 Mile Race	6:07:47 h	3 🥉
1990
27.10	100km	IAU 100km WC Duluth (8th Edmund Fitzgerald 100K Road Race)	7:55:32 h	22
1989
14.10	50mi	7th Dick Collins Firetrails 50 Mile	7:47:05 h	5
11.02	50mi	11th Jed Smith Ultra Classic - 50 Mile Race	6:21:24 h	6
1988
26.11	28mi	4th Quad Dipsea Trail Run	4:57:13 h	9
1987
12.04	50mi	8th American River 50 Mile Endurance Run	6:04:41 h	3 🥉
07.02	50km	9th Jed Smith Ultra Classic - 50 km Race	5:40:38 h	1 🏆
1986
12.10	50km	AMJA 50 km Ultramarathon	3:20:00 h	4
12.10	50mi	AMJA 50 Mile Ultramarathon	5:51:15 h	4
1985
13.10	50mi	AMJA 50 Mile Ultramarathon	5:35:10 h	3 🥉
04.08	50km	4th Skyline 50k Endurance Run	3:58:49 h	13
09.02	50mi	7th Jed Smith Ultra Classic - 50 Mile Race	5:55:39 h	2 🥈
1984
17.11	50mi	22nd JFK 50 Mile	6:40:36 h	4
23.06	93.5mi	11th Western States 100 Mile Endurance Run	22:24:00 h	73
11.02	50mi	6th Jed Smith Ultra Classic - 50 Mile Race	6:07:31 h	3 🥉
1983
07.08	50km	2nd Skyline 50k Endurance Run	4:28:11 h	11
17.04	50mi	4th American River 50 Mile Endurance Run	6:58:53 h	28
1982
25.09	24h	3rd Sri Chinmoy 24 Hour Race	121.899 km	29
01.08	50km	1st Skyline 50k Endurance Run	3:55:25 h	10
18.04	50mi	3rd American River 50 Mile Endurance Run	7:29:47 h	21
1981
18.09	72mi	6th Lake Tahoe 72 Miler	11:41:53 h	12
15.02	50mi	4th Jed Smith Ultra Classic - 50 Mile Race	6:25:50 h	13
1980
28.09	87.3km	30th London to Brighton Road Race	7:03:15 h	48
04.05	50mi	2nd Yakima Ultramarathons 50mi	6:22:15 h	3 🥉
1979
17.08	100mi	Daniel Boone/Lorna Doone 100 Mile Ultra	18:49:03 h	2 🥈
17.08	24h	Daniel Boone/Lorna Doone 24-Hour Ultra	161.336 km	3 🥉
17.08	48h	Daniel Boone/Lorna Doone 48-Hour Ultra	160.934 km	6
25.02	50mi	PA-AAU 50 Miler	6:10:42 h	5
1978
10.12	60km	Sacramento Sixty, PA-AAU 60-K	4:09:30 h	5

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	4/9/2015	1st A Race for the Ages	201,17	×3
✓ 2	17/8/1979	Daniel Boone/Lorna Doone 24-Hour Ultra	161,34	×2
✓ 3	23/6/2001	28th Western States 100 Mile Endurance Run	160,93	×2
✓ 4	28/6/1997	24th Western States 100 Mile Endurance Run	160,93	×2
✓ 5	13/5/2022	14th 3 Days at the Fair 48 Hour Race	160,93	×2
✓ 6	23/6/1984	11th Western States 100 Mile Endurance Run	150,47	×2
✓ 7	25/9/1982	3rd Sri Chinmoy 24 Hour Race	121,90	×2
✓ 8	18/9/1981	6th Lake Tahoe 72 Miler	115,87	×1
✓ 9	4/5/2002	7th Miwok 100k Trail race	100,00	×1
✓ 10	5/5/2001	6th Miwok 100k Trail race	100,00	×1
✓ 11	1/5/1999	4th Miwok 100k Trail race	100,00	×1
✓ 12	19/4/1997	12th Ruth Anderson Ultra 100km	100,00	×1
✓ 13	16/2/1992	IAU 100km WC Palamos (V. 100km de la Costa Brava) - open race	100,00	×1
✓ 14	25/5/1991	IAU 100km WC Firenze (19^ 100 km del Passatore)	100,00	×1
✓ 15	27/10/1990	IAU 100km WC Duluth (8th Edmund Fitzgerald 100K Road Race)	100,00	×1
✓ 16	28/9/1980	30th London to Brighton Road Race	87,30	×1
✓ 17	17/6/1996	71st Comrades Marathon - Up Run	87,00	×1
✓ 18	14/9/2002	16th Sierra Nevada Endurance 53 Mile Run	85,62	×1
✓ 19	7/2/2004	26th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 20	12/10/2002	20th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 21	20/4/2002	16th Ruth Anderson Ultra 50mi	80,47	×1
✓ 22	10/11/2001	6th Helen Klein Ultra Classic 50mi	80,47	×1
✓ 23	13/10/2001	19th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 24	21/4/2001	15th Ruth Anderson Ultra 50mi	80,47	×1
✓ 25	11/11/2000	5th Helen Klein Ultra Classic 50mi	80,47	×1
✓ 26	1/4/2000	21st American River 50 Mile Endurance Run	80,47	×1
✓ 27	13/11/1999	4th Helen Klein Ultra Classic 50mi	80,47	×1
✓ 28	10/4/1999	20th American River 50 Mile Endurance Run	80,47	×1
✓ 29	12/12/1998	9th Sunmart Texas Trails 50 Mile	80,47	×1
✓ 30	14/11/1998	3rd Helen Klein Ultra Classic 50mi	80,47	×1
✓ 31	16/5/1998	17th Ice Age Trail 50 Mile Run	80,47	×1
✓ 32	4/4/1998	19th American River 50 Mile Endurance Run	80,47	×1
✓ 33	15/11/1997	2nd Helen Klein Ultra Classic 50mi	80,47	×1
✓ 34	5/4/1997	18th American River 50 Mile Endurance Run	80,47	×1
✓ 35	12/10/1996	14th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 36	3/4/1993	14th American River 50 Mile Endurance Run	80,47	×1
✓ 37	6/2/1993	15th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 38	9/2/1991	13th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 39	14/10/1989	7th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 40	11/2/1989	11th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 41	12/4/1987	8th American River 50 Mile Endurance Run	80,47	×1
✓ 42	12/10/1986	AMJA 50 Mile Ultramarathon	80,47	×1
✓ 43	13/10/1985	AMJA 50 Mile Ultramarathon	80,47	×1
✓ 44	9/2/1985	7th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 45	17/11/1984	22nd JFK 50 Mile	80,47	×1
✓ 46	11/2/1984	6th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 47	17/4/1983	4th American River 50 Mile Endurance Run	80,47	×1
✓ 48	18/4/1982	3rd American River 50 Mile Endurance Run	80,47	×1
✓ 49	15/2/1981	4th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 50	4/5/1980	2nd Yakima Ultramarathons 50mi	80,47	×1
✓ 51	25/2/1979	PA-AAU 50 Miler	80,47	×1
✓ 52	10/12/1978	Sacramento Sixty, PA-AAU 60-K	60,00	×1
53	26/8/2007	10th Tamalpa Headlands 50K	50,69	—
54	26/8/2006	9th Tamalpa Headlands 50K	50,69	—
55	27/8/2005	8th Tamalpa Headlands 50K	50,69	—
56	23/8/2003	6th Tamalpa Headlands 50K	50,69	—
57	24/8/2002	5th Tamalpa Headlands 50K	50,69	—
58	25/8/2001	4th Tamalpa Headlands 50K	50,69	—
59	4/8/2019	38th Skyline 50k Endurance Run	50,00	—
60	3/8/2014	33rd Skyline 50k Endurance Run	50,00	—
61	1/2/2014	36th Jed Smith Ultra Classic - 50 km Race	50,00	—
62	2/2/2008	30th Jed Smith Ultra Classic - 50 km Race	50,00	—
63	5/8/2007	26th Skyline 50k Endurance Run	50,00	—
64	4/3/2007	5th Caumsett Park 50K Lloyd Neck	50,00	—
65	3/2/2007	29th Jed Smith Ultra Classic - 50 km Race	50,00	—
66	6/8/2006	25th Skyline 50k Endurance Run	50,00	—
67	7/8/2005	24th Skyline 50k Endurance Run	50,00	—
68	5/2/2005	27th Jed Smith Ultra Classic - 50 km Race	50,00	—
69	18/5/2003	16th Ohlone 50K Wilderness Run	50,00	—
70	8/2/2003	25th Jed Smith Ultra Classic - 50 km Race	50,00	—
71	4/8/2002	21st Skyline 50k Endurance Run	50,00	—
72	12/5/2001	18th Quicksilver 50 km Endurance Run	50,00	—
73	10/3/2001	12th Way Too Cool 50K Endurance Run	50,00	—
74	5/8/2000	19th Skyline 50k Endurance Run	50,00	—
75	13/5/2000	17th Quicksilver 50 km Endurance Run	50,00	—
76	12/2/2000	22nd Jed Smith Ultra Classic - 50 km Race	50,00	—
77	13/3/1999	10th Way Too Cool 50K Endurance Run	50,00	—
78	13/2/1999	21st Jed Smith Ultra Classic - 50 km Race	50,00	—
79	7/2/1998	20th Jed Smith Ultra Classic - 50 km Race	50,00	—
80	6/9/1997	3rd Point Reyes 50K	50,00	—
81	10/5/1997	14th Quicksilver 50 km Endurance Run	50,00	—
82	18/1/1997	19th Jed Smith Ultra Classic - 50 km Race	50,00	—
83	24/8/1996	2nd Point Reyes 50K	50,00	—
84	3/8/1996	15th Skyline 50k Endurance Run	50,00	—
85	3/2/1996	18th Jed Smith Ultra Classic - 50 km Race	50,00	—
86	2/9/1995	1st Point Reyes 50K	50,00	—
87	6/8/1995	14th Skyline 50k Endurance Run	50,00	—
88	7/2/1987	9th Jed Smith Ultra Classic - 50 km Race	50,00	—
89	4/8/1985	4th Skyline 50k Endurance Run	50,00	—
90	7/8/1983	2nd Skyline 50k Endurance Run	50,00	—
91	1/8/1982	1st Skyline 50k Endurance Run	50,00	—
92	12/1/1998	Epiphany Ultras - The Popular But Wussy Metric	47,00	—
93	25/11/2006	22nd Quad Dipsea Trail Run	45,06	—
94	30/11/1996	12th Quad Dipsea Trail Run	45,06	—
95	26/11/1988	4th Quad Dipsea Trail Run	45,06	—