Bogdan Ambrozewicz

Born : 1953 Cat. M70 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

46,9%

Rank quotient ?This runner's calculation uses 63 eligible race(s): Σ(rank − 1) = 8 789; Σ finishers = 18 721. 8 789 / 18 721 × 100 = 46.95%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed63

Km — ultra races4 632 km

> 100 km6

> 160 km6

Longest race160,9 km

34th Western States 100 Mile Endurance Run — 23/6/2007

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Trail100,0%

Records

50 km4h58'00 100 km13h22'43 50 mi7h49'04 100 mi23h28'16

HISTORY

63 race(s)

Date		Race	Perf.	Rk
2009
04.04	50mi	30th American River 50 Mile Endurance Run	11:53:05 h	438
14.03	50km	20th Way Too Cool 50K Endurance Run	6:47:28 h	350
2008
05.04	50mi	29th American River 50 Mile Endurance Run	11:20:57 h	357
08.03	50km	19th Way Too Cool 50K Endurance Run	6:46:00 h	351
2007
23.06	100mi	34th Western States 100 Mile Endurance Run	29:55:11 h	267
14.04	50mi	28th American River 50 Mile Endurance Run	10:46:54 h	323
10.03	50km	18th Way Too Cool 50K Endurance Run	6:29:27 h	314
2006
04.11	50mi	11th Helen Klein Ultra Classic 50mi	9:48:38 h	75
01.04	50mi	27th American River 50 Mile Endurance Run	11:08:03 h	308
11.03	50km	17th Way Too Cool 50K Endurance Run	6:31:17 h	249
2005
07.08	50km	24th Skyline 50k Endurance Run	5:24:15 h	32
16.07	50mi	4th Tahoe Rim Trail 50M Endurance Runs	11:37:11 h	49
25.06	100mi	32th Western States 100 Mile Endurance Run	29:42:00 h	308
04.06	50km	8th Best Run By A Dam Site	7:06:37 h	21
21.05	50km	20th Silver State 50 km	7:55:50 h	22
30.04	100km	10th Miwok 100k Trail race	13:22:43 h	140
02.04	50mi	26th American River 50 Mile Endurance Run	10:20:30 h	254
12.03	50km	16th Way Too Cool 50K Endurance Run	5:47:07 h	176
2004
03.04	50mi	25th American River 50 Mile Endurance Run	9:59:01 h	209
13.03	50km	15th Way Too Cool 50K Endurance Run	5:50:34 h	222
2003
14.06	50km	6th Best Run By A Dam Site	5:14:01 h	7
17.05	50km	18th Silver State 50 km	7:32:02 h	17
03.05	100km	8th Miwok 100k Trail race	14:05:02 h	128
05.04	50mi	24th American River 50 Mile Endurance Run	8:58:15 h	142
22.03	50km	1st Rucky Chucky Roundabout 50K	6:47:34 h	42
08.03	50km	14th Way Too Cool 50K Endurance Run	5:39:35 h	217
2002
29.06	100mi	29th Western States 100 Mile Endurance Run	27:07:21 h	139
17.06	50km	5th Best Run By A Dam Site	5:45:02 h	6
06.04	50mi	23rd American River 50 Mile Endurance Run	9:38:53 h	172
2001
23.06	100mi	28th Western States 100 Mile Endurance Run	28:44:06 h	201
07.04	50mi	22nd American River 50 Mile Endurance Run	9:25:35 h	142
10.03	50km	12th Way Too Cool 50K Endurance Run	5:53:42 h	229
2000
01.04	50mi	21st American River 50 Mile Endurance Run	9:48:20 h	166
11.03	50km	11th Way Too Cool 50K Endurance Run	6:10:09 h	242
1999
26.06	100mi	26th Western States 100 Mile Endurance Run	23:28:16 h	50
15.05	50km	14th Silver State 50 km	7:32:12 h	21
10.04	50mi	20th American River 50 Mile Endurance Run	8:12:05 h	75
13.03	50km	10th Way Too Cool 50K Endurance Run	4:58:00 h	80
1998
28.11	28mi	14th Quad Dipsea Trail Run	5:41:00 h	52
06.09	50km	4th Run On The Sly 50 km	5:21:43 h	11
01.08	50km	17th Skyline 50k Endurance Run	5:36:23 h	62
04.04	50mi	19th American River 50 Mile Endurance Run	8:11:54 h	79
1997
29.11	28mi	13th Quad Dipsea Trail Run	5:52:42 h	76
15.11	50mi	2nd Helen Klein Ultra Classic 50mi	9:22:32 h	68
02.08	50km	16th Skyline 50k Endurance Run	5:10:55 h	53
05.04	50mi	18th American River 50 Mile Endurance Run	9:15:05 h	220
15.03	50km	8th Way Too Cool 50K Endurance Run	5:00:08 h	90
1996
30.11	28mi	12th Quad Dipsea Trail Run	5:54:53 h	76
03.08	50km	15th Skyline 50k Endurance Run	5:04:44 h	33
18.05	50mi	11th Silver State 50 Miles	10:40:44 h	9
09.03	50km	7th Way Too Cool 50K Endurance Run	5:30:40 h	126
1995
01.04	50mi	16th American River 50 Mile Endurance Run	8:52:31 h	156
11.03	50km	6th Way Too Cool 50K Endurance Run	5:16:57 h	81
1993
01.08	50km	12th Skyline 50k Endurance Run	5:33:15 h	41
03.04	50mi	14th American River 50 Mile Endurance Run	8:09:52 h	90
1992
14.03	50km	3rd Way Too Cool 50K Endurance Run	5:01:52 h	68
1991
06.04	50mi	12th American River 50 Mile Endurance Run	8:15:23 h	81
1990
23.06	100mi	17th Western States 100 Mile Endurance Run	26:30:19 h	101
07.04	50mi	11th American River 50 Mile Endurance Run	8:54:15 h	179
10.03	50km	1st Way Too Cool 50K Endurance Run	6:14:47 h	86
1988
10.04	50mi	9th American River 50 Mile Endurance Run	7:49:04 h	24
1986
13.04	50mi	7th American River 50 Mile Endurance Run	11:27:54 h	296
1981
12.04	50mi	2nd American River 50 Mile Endurance Run	9:12:41 h	153

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	23/6/2007	34th Western States 100 Mile Endurance Run	160,93	×3
✓ 2	25/6/2005	32th Western States 100 Mile Endurance Run	160,93	×3
✓ 3	29/6/2002	29th Western States 100 Mile Endurance Run	160,93	×3
✓ 4	23/6/2001	28th Western States 100 Mile Endurance Run	160,93	×3
✓ 5	26/6/1999	26th Western States 100 Mile Endurance Run	160,93	×3
✓ 6	23/6/1990	17th Western States 100 Mile Endurance Run	160,93	×3
✓ 7	30/4/2005	10th Miwok 100k Trail race	100,00	×2
✓ 8	3/5/2003	8th Miwok 100k Trail race	100,00	×2
✓ 9	4/4/2009	30th American River 50 Mile Endurance Run	80,47	×1
✓ 10	5/4/2008	29th American River 50 Mile Endurance Run	80,47	×1
✓ 11	14/4/2007	28th American River 50 Mile Endurance Run	80,47	×1
✓ 12	4/11/2006	11th Helen Klein Ultra Classic 50mi	80,47	×1
✓ 13	1/4/2006	27th American River 50 Mile Endurance Run	80,47	×1
✓ 14	16/7/2005	4th Tahoe Rim Trail 50M Endurance Runs	80,47	×1
✓ 15	2/4/2005	26th American River 50 Mile Endurance Run	80,47	×1
✓ 16	3/4/2004	25th American River 50 Mile Endurance Run	80,47	×1
✓ 17	5/4/2003	24th American River 50 Mile Endurance Run	80,47	×1
✓ 18	6/4/2002	23rd American River 50 Mile Endurance Run	80,47	×1
✓ 19	7/4/2001	22nd American River 50 Mile Endurance Run	80,47	×1
✓ 20	1/4/2000	21st American River 50 Mile Endurance Run	80,47	×1
✓ 21	10/4/1999	20th American River 50 Mile Endurance Run	80,47	×1
✓ 22	4/4/1998	19th American River 50 Mile Endurance Run	80,47	×1
✓ 23	15/11/1997	2nd Helen Klein Ultra Classic 50mi	80,47	×1
✓ 24	5/4/1997	18th American River 50 Mile Endurance Run	80,47	×1
✓ 25	18/5/1996	11th Silver State 50 Miles	80,47	×1
✓ 26	1/4/1995	16th American River 50 Mile Endurance Run	80,47	×1
✓ 27	3/4/1993	14th American River 50 Mile Endurance Run	80,47	×1
✓ 28	6/4/1991	12th American River 50 Mile Endurance Run	80,47	×1
✓ 29	7/4/1990	11th American River 50 Mile Endurance Run	80,47	×1
✓ 30	10/4/1988	9th American River 50 Mile Endurance Run	80,47	×1
✓ 31	13/4/1986	7th American River 50 Mile Endurance Run	80,47	×1
✓ 32	12/4/1981	2nd American River 50 Mile Endurance Run	80,47	×1
✓ 33	14/3/2009	20th Way Too Cool 50K Endurance Run	50,00	×1
✓ 34	8/3/2008	19th Way Too Cool 50K Endurance Run	50,00	×1
✓ 35	10/3/2007	18th Way Too Cool 50K Endurance Run	50,00	×1
✓ 36	11/3/2006	17th Way Too Cool 50K Endurance Run	50,00	×1
✓ 37	7/8/2005	24th Skyline 50k Endurance Run	50,00	×1
✓ 38	4/6/2005	8th Best Run By A Dam Site	50,00	×1
✓ 39	21/5/2005	20th Silver State 50 km	50,00	×1
✓ 40	12/3/2005	16th Way Too Cool 50K Endurance Run	50,00	×1
✓ 41	13/3/2004	15th Way Too Cool 50K Endurance Run	50,00	×1
✓ 42	14/6/2003	6th Best Run By A Dam Site	50,00	×1
✓ 43	17/5/2003	18th Silver State 50 km	50,00	×1
✓ 44	22/3/2003	1st Rucky Chucky Roundabout 50K	50,00	×1
✓ 45	8/3/2003	14th Way Too Cool 50K Endurance Run	50,00	×1
✓ 46	17/6/2002	5th Best Run By A Dam Site	50,00	×1
✓ 47	10/3/2001	12th Way Too Cool 50K Endurance Run	50,00	×1
✓ 48	11/3/2000	11th Way Too Cool 50K Endurance Run	50,00	×1
✓ 49	15/5/1999	14th Silver State 50 km	50,00	×1
✓ 50	13/3/1999	10th Way Too Cool 50K Endurance Run	50,00	×1
51	6/9/1998	4th Run On The Sly 50 km	50,00	×1
52	1/8/1998	17th Skyline 50k Endurance Run	50,00	×1
53	2/8/1997	16th Skyline 50k Endurance Run	50,00	×1
54	15/3/1997	8th Way Too Cool 50K Endurance Run	50,00	×1
55	3/8/1996	15th Skyline 50k Endurance Run	50,00	×1
56	9/3/1996	7th Way Too Cool 50K Endurance Run	50,00	×1
57	11/3/1995	6th Way Too Cool 50K Endurance Run	50,00	×1
58	1/8/1993	12th Skyline 50k Endurance Run	50,00	×1
59	14/3/1992	3rd Way Too Cool 50K Endurance Run	50,00	×1
60	10/3/1990	1st Way Too Cool 50K Endurance Run	50,00	×1
61	28/11/1998	14th Quad Dipsea Trail Run	45,06	—
62	29/11/1997	13th Quad Dipsea Trail Run	45,06	—
63	30/11/1996	12th Quad Dipsea Trail Run	45,06	—