Harold Sieglaff

Born : 1934 Cat. M90 Ultrarunner since 1981

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

67,0%

Rank quotient ?This runner's calculation uses 27 eligible race(s): Σ(rank − 1) = 284; Σ finishers = 424. 284 / 424 × 100 = 66.98%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed27

Km — ultra races4 349 km

> 100 km22

> 160 km17

> 200 km6

> 24h24

> 48h21

Longest race286,4 km

17th Across the Years, 6 days — 26/12/1999

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road100,0%

Wins & podiums (ultra)

🏆 Win1

🏆 Win M2

🏅 Top 34

🏅 Top 3 M4

Longest winning streak1

Current streak0

Records

50 mi7h55'22 24 h156,86 km 48 h176,40 km 6 d286,40 km

HISTORY

27 race(s) · 9 split(s) nested

Date		Race	Perf.	Rk
2015
28.12	6d	31st Across the Years, 6 days	202.745 km	47
2006
29.12	72h	24th Across the Years, 72h	51.000 km	34
2005
29.12	72h	23rd Across the Years, 72h	105.000 km	30
29.12	24h	23rd Across the Years, 72h - 24h Split	49.500 km	30
29.12	48h	23rd Across the Years, 72h - 48h Split	72.500 km	30
2004
29.12	72h	22nd Across the Years, 72h	169.500 km	21
2003
29.12	72h	21st Across the Years, 72h	182.500 km	7
2002
29.12	72h	20th Across the Years, 72h	172.000 km	15
2001
29.12	72h	19th Across the Years, 72h	166.000 km	13
2000
29.12	72h	18th Across the Years, 72h	210.400 km	7
1999
26.12	6d	17th Across the Years, 6 days	286.400 km	15
1998
29.12	72h	16th Across the Years, 72h	207.600 km	8
1997
29.12	72h	15th Across the Years, 72h	258.000 km	5
1995
29.12	72h	13th Across the Years, 72h	212.000 km	2 🥈
1994
29.12	72h	12th Across the Years, 72h	182.400 km	4
1993
29.12	72h	11th Across the Years, 72h	178.800 km	6
1992
29.12	72h	10th Across the Years, 72h	200.000 km	2 🥈
1991
29.12	72h	9th Across the Years, 72h	198.800 km	1 🏆
1990
29.12	72h	8th Across the Years, 72h	162.400 km	5
1989
29.12	72h	7th Across the Years, 72h	89.200 km	10
1987
30.12	48h	5th Across the Years, 48h	111.200 km	9
1986
30.12	48h	4th Across the Years, 48h	161.600 km	5
1985
30.12	48h	3rd Across the Years, 48h	176.400 km	9
1984
31.12	24h	2nd Across the Years, 24h	130.800 km	11
31.12	50mi	2nd Across the Years, 24h - 50mi Split	10:59:45 h	15
31.12	100km	2nd Across the Years, 24h - 100km Split	14:49:20 h	12
1983
31.12	24h	1st Across the Years, 24h	156.862 km	9
31.12	50mi	1st Across the Years, 24h - 50mi Split	9:47:41 h	9
31.12	100km	1st Across the Years, 24h - 100km Split	12:34:21 h	7
02.04	24h	Easter Sunrise 24 Hour Track Run	135.801 km	3 🥉
02.04	50mi	Easter Sunrise 24 Hour Track Run - 50mi Split	10:51:54 h	3 🥉
02.04	100km	Easter Sunrise 24 Hour Track Run - 100km Split	14:39:35 h	3 🥉
02.04	100mi	Easter Sunrise 24 Hour Track Run - 100mi Split	36:21:55 h	3 🥉
16.01	50mi	Active Sports Ultramarathon	8:08:26 h	10
1982
14.02	50mi	The Complete Runner Ultra	7:55:22 h	6
1981
22.02	50mi	The Complete Runner Ultra	8:38:53 h	17

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	26/12/1999	17th Across the Years, 6 days	286,40	×4
✓ 2	29/12/1997	15th Across the Years, 72h	258,00	×4
✓ 3	29/12/1995	13th Across the Years, 72h	212,00	×3
✓ 4	29/12/2000	18th Across the Years, 72h	210,40	×3
✓ 5	29/12/1998	16th Across the Years, 72h	207,60	×3
✓ 6	28/12/2015	31st Across the Years, 6 days	202,75	×3
✓ 7	29/12/1992	10th Across the Years, 72h	200,00	×3
✓ 8	29/12/1991	9th Across the Years, 72h	198,80	×3
✓ 9	29/12/2003	21st Across the Years, 72h	182,50	×3
✓ 10	29/12/1994	12th Across the Years, 72h	182,40	×3
✓ 11	29/12/1993	11th Across the Years, 72h	178,80	×3
✓ 12	30/12/1985	3rd Across the Years, 48h	176,40	×2
✓ 13	29/12/2002	20th Across the Years, 72h	172,00	×2
✓ 14	29/12/2004	22nd Across the Years, 72h	169,50	×2
✓ 15	29/12/2001	19th Across the Years, 72h	166,00	×2
✓ 16	29/12/1990	8th Across the Years, 72h	162,40	×2
✓ 17	30/12/1986	4th Across the Years, 48h	161,60	×2
✓ 18	31/12/1983	1st Across the Years, 24h	156,86	×2
✓ 19	2/4/1983	Easter Sunrise 24 Hour Track Run	135,80	×2
✓ 20	31/12/1984	2nd Across the Years, 24h	130,80	×2
✓ 21	30/12/1987	5th Across the Years, 48h	111,20	×1
✓ 22	29/12/2005	23rd Across the Years, 72h	105,00	×1
✓ 23	29/12/1989	7th Across the Years, 72h	89,20	×1
✓ 24	16/1/1983	Active Sports Ultramarathon	80,47	×1
✓ 25	14/2/1982	The Complete Runner Ultra	80,47	×1
✓ 26	22/2/1981	The Complete Runner Ultra	80,47	×1
✓ 27	29/12/2006	24th Across the Years, 72h	51,00	—