Michael Kazar

Born : 1964 Cat. M60 Ultrarunner since 2007

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

63,7%

Rank quotient ?This runner's calculation uses 115 eligible race(s): Σ(rank − 1) = 9 358; Σ finishers = 14 695. 9 358 / 14 695 × 100 = 63.68%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed115

Km — ultra races7 493 km

> 100 km10

> 160 km10

Longest race164,2 km

13th Burning River 100 Mile Endurance Run — 27/7/2019

Km per year (ultra races)

155

2022

150

2023

234

2024

310

2025

290

2026

Race types (share of distance)

Road1,1%

Trail98,9%

Records

50 km5h17'28 50 mi10h23'57 100 mi26h34'00

HISTORY

115 race(s)

Date		Race	Perf.	Rk
2026
25.07	50mi	20th Burning River 50 Mile Back Endurance Run	15:01:11 h	62
28.06	50km	32nd Buckeye Trail 50k	8:52:42 h	168
20.06	37mi	29th Rachel Carson Trail Challenge	11:52:40 h	187
30.05	50km	12th Worlds End Ultramarathon 50K	9:37:36 h	134
11.04	50km	17th Forget the PR - Mohican 50k	8:36:33 h	114
2025
13.12	50km	16th Bigfoot 50K Trail Race	7:54:59 h	100
06.09	50km	21st Youngstown Ultra Trail Classic 50K	8:39:48 h	42
28.06	50km	31st Buckeye Trail 50k	8:56:22 h	143
21.06	37mi	28th Rachel Carson Trail Challenge	12:58:59 h	209
31.05	50km	11th Worlds End Ultramarathon 50K	10:35:39 h	127
12.04	50km	16th Forget the PR - Mohican 50k	9:04:07 h	123
2024
07.09	50km	20th Youngstown Ultra Trail Classic 50K	8:16:40 h	37
27.07	52mi	18th Burning River 50 Mile Back Endurance Run	14:37:38 h	38
06.07	50km	30th Buckeye Trail 50k	8:33:00 h	161
01.06	50km	10th Worlds End Ultramarathon 50K	10:08:31 h	108
2023
09.09	50km	19th Youngstown Ultra Trail Classic 50K	8:29:36 h	37
08.07	50km	29th Buckeye Trail 50k	8:22:12 h	156
03.06	50km	9th Worlds End Ultramarathon 50K	10:15:42 h	109
2022
09.07	50km	28th Buckeye Trail 50k	8:02:21 h	125
18.06	34mi	25th Rachel Carson Trail Challenge	10:48:16 h	110
04.06	50km	8th Worlds End Ultramarathon 50K	10:06:08 h	109
2021
02.10	50km	6th Conquer The Castle 50K Trail Race	7:14:26 h	39
11.09	50km	17th Youngstown Ultra Trail Classic 50K	8:37:26 h	50
24.07	100mi	15th Burning River 100 Mile Endurance Run	29:42:20 h	157
10.07	50km	27th Buckeye Trail 50k	8:27:31 h	119
24.06	34mi	24th Rachel Carson Trail Challenge	11:31:42 h	130
05.06	50km	7th Worlds End Ultramarathon 50K	10:41:27 h	80
03.04	50km	14th Fools 50K Trail Run	8:30:53 h	97
2019
26.10	50km	12th Run With Scissors 50km Race	7:11:53 h	19
14.09	50km	15th Youngstown Ultra Trail Classic 50K	8:35:31 h	46
27.07	102mi	13th Burning River 100 Mile Endurance Run	29:22:54 h	138
30.06	50km	25th Buckeye Trail 50k	8:05:31 h	75
22.06	34mi	23th Rachel Carson Trail Challenge	11:14:34 h	128
2018
08.12	50km	9th Bigfoot 50K Trail Race	8:29:26 h	141
10.11	50km	10th Bills' Badass 50K	8:46:00 h	54
27.10	52.4mi	11th Run With Scissors Double Marathon	13:56:34 h	24
22.09	50km	3rd Doan Creek Trail Run	10:05:54 h	34
15.09	50km	14th Youngstown Ultra Trail Classic 50K	7:14:00 h	25
28.07	52mi	12th Burning River 50 Mile Back Endurance Run	14:49:21 h	59
07.07	50km	24th Buckeye Trail 50k	9:01:07 h	127
2017
28.10	52.4mi	10th Run With Scissors Double Marathon	13:52:03 h	18
16.09	50km	13th Youngstown Ultra Trail Classic 50K	8:51:40 h	37
29.07	102mi	11th Burning River 100 Mile Endurance Run	29:50:28 h	127
08.07	50km	23th Buckeye Trail 50k	8:39:17 h	117
24.06	34mi	21th Rachel Carson Trail Challenge	11:34:46 h	88
03.06	50km	3rd Worlds End Ultramarathon 50K	9:46:23 h	86
29.01	50km	Winter Buckeye Trail 50k	8:30:08 h	26
2016
29.10	52.4mi	9th Run With Scissors Double Marathon	13:40:19 h	31
17.09	50km	12th Youngstown Ultra Trail Classic 50K	8:40:47 h	40
06.08	52mi	10th Burning River 50 Mile Back Endurance Run	14:44:35 h	45
09.07	50km	22th Buckeye Trail 50k	8:17:39 h	126
21.05	50km	2nd Worlds End Ultramarathon 50K	9:59:31 h	115
2015
31.10	52.4mi	8th Run With Scissors Double Marathon	12:26:41 h	18
19.09	50km	11th Youngstown Ultra Trail Classic 50K	7:49:10 h	55
25.07	50mi	9th Burning River 50 Mile Endurance Run	15:14:00 h	145
11.07	50km	21th Buckeye Trail 50k	9:19:16 h	108
20.06	34mi	19th Rachel Carson Trail Challenge	12:46:22 h	160
11.04	50km	7th Forget the PR - Mohican 50k	7:29:44 h	93
29.03	50km	8th Fools 50K Trail Run	8:52:35 h	104
2014
21.12	50km	2nd First Day of Winter 50K	6:09:00 h	27
06.12	50km	5th Bigfoot 50K Trail Race	7:49:22 h	75
26.10	52.4mi	7th Run With Scissors Double Marathon	13:05:25 h	23
13.09	50km	10th Youngstown Ultra Trail Classic 50K	7:11:19 h	44
12.07	50km	20th Buckeye Trail 50k	8:54:52 h	135
21.06	34mi	18th Rachel Carson Trail Challenge	10:19:44 h	93
12.04	50km	6th Forget the PR - Mohican 50k	7:51:38 h	146
30.03	50km	7th Fools 50K Trail Run	7:46:18 h	59
08.03	50km	7th Green Jewel 50K	6:23:39 h	108
2013
27.10	52.4mi	6th Run With Scissors Double Marathon	13:32:31 h	41
14.09	50km	9th Youngstown Ultra Trail Classic 50K	8:02:56 h	53
27.07	100mi	7th Burning River 100 Mile Endurance Run	29:07:17 h	134
13.07	50km	19th Buckeye Trail 50k	8:33:34 h	132
22.06	34mi	17th Rachel Carson Trail Challenge	11:45:31 h	154
07.04	50km	6th Fools 50K Trail Run	7:47:20 h	106
03.02	50km	6th Green Jewel 50K	5:57:56 h	104
13.01	50km	4th Run for Regis 50K	7:24:24 h	49
2012
28.10	52.4mi	5th Run With Scissors Double Marathon	13:38:00 h	25
15.09	50km	8th Youngstown Ultra Trail Classic 50K	7:38:25 h	63
28.07	100mi	6th Burning River 100 Mile Endurance Run	28:23:15 h	142
02.06	50km	1st Buckeye Buster 50K	7:15:42 h	51
15.04	50km	4th Forget the PR - Mohican 50k	7:07:56 h	78
01.04	50km	5th Fools 50K Trail Run	6:16:51 h	68
03.03	50km	5th Green Jewel 50K	5:26:21 h	71
15.01	50km	3rd Run for Regis 50K	7:24:52 h	46
2011
04.12	50km	2nd Bigfoot 50K Trail Race	7:03:19 h	68
30.10	52.4mi	4th Run With Scissors Double Marathon	13:30:00 h	28
30.07	100mi	5th Burning River 100 Mile Endurance Run	27:24:43 h	89
16.07	50km	17th Buckeye Trail 50k	7:54:12 h	127
17.04	50km	3rd Forget the PR - Mohican 50k	7:22:27 h	71
09.04	50km	1st Glacier Ridge Trail 50 km Ultramarathon	7:47:02 h	41
27.03	50km	4th Fools 50K Trail Run	7:03:48 h	84
16.01	50km	2nd Run for Regis 50K	8:16:28 h	39
2010
11.12	50km	1st Mason-Dixon Madness (MDM 50K)	5:17:28 h	24
13.11	50km	2nd Bills' Badass 50K	7:16:00 h	62
31.10	52.4mi	3rd Run With Scissors Double Marathon	11:35:00 h	24
18.09	50km	6th Youngstown Ultra Trail Classic 50K	7:16:23 h	60
31.07	100mi	4th Burning River 100 Mile Endurance Run	28:45:02 h	140
19.06	34mi	14th Rachel Carson Trail Challenge	11:00:09 h	84
18.04	50km	2nd Forget the PR - Mohican 50k	6:36:40 h	82
28.03	50km	3rd Fools 50K Trail Run	6:50:20 h	68
06.03	50km	3rd Green Jewel 50K	5:45:59 h	39
17.01	50km	1st Run for Regis 50K	7:20:30 h	57
2009
24.10	52.4mi	2nd Run With Scissors Double Marathon	12:37:00 h	21
01.08	100mi	3rd Burning River 100 Mile Endurance Run	28:13:23 h	69
19.07	50km	15th Buckeye Trail 50k	7:20:45 h	129
14.02	50km	6th Louisville's Love'n the Hills (LLTH 50K)	6:35:28 h	22
18.01	50km	Winter Buckeye Trail 50k	7:05:34 h	28
2008
26.10	52.4mi	1st Run With Scissors Double Marathon	12:02:00 h	20
02.08	100mi	2nd Burning River 100 Mile Endurance Run	26:34:00 h	42
12.07	50km	14th Buckeye Trail 50k	7:57:57 h	126
26.01	50km	Winter Buckeye Trail 50k	6:45:01 h	65
05.01	50mi	1st Running from an Angel 50 Miler	10:23:57 h	24
2007
15.09	50km	3rd Youngstown Ultra Trail Classic 50K	7:35:30 h	40
04.08	100mi	1st Burning River 100 Mile Endurance Run	28:18:29 h	54
14.07	50km	13th Buckeye Trail 50k	7:52:00 h	139

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	27/7/2019	13th Burning River 100 Mile Endurance Run	164,15	×3
✓ 2	29/7/2017	11th Burning River 100 Mile Endurance Run	164,15	×3
✓ 3	24/7/2021	15th Burning River 100 Mile Endurance Run	160,93	×3
✓ 4	27/7/2013	7th Burning River 100 Mile Endurance Run	160,93	×3
✓ 5	28/7/2012	6th Burning River 100 Mile Endurance Run	160,93	×3
✓ 6	30/7/2011	5th Burning River 100 Mile Endurance Run	160,93	×3
✓ 7	31/7/2010	4th Burning River 100 Mile Endurance Run	160,93	×3
✓ 8	1/8/2009	3rd Burning River 100 Mile Endurance Run	160,93	×3
✓ 9	2/8/2008	2nd Burning River 100 Mile Endurance Run	160,93	×3
✓ 10	4/8/2007	1st Burning River 100 Mile Endurance Run	160,93	×3
✓ 11	27/10/2018	11th Run With Scissors Double Marathon	84,33	×1
✓ 12	28/10/2017	10th Run With Scissors Double Marathon	84,33	×1
✓ 13	29/10/2016	9th Run With Scissors Double Marathon	84,33	×1
✓ 14	31/10/2015	8th Run With Scissors Double Marathon	84,33	×1
✓ 15	26/10/2014	7th Run With Scissors Double Marathon	84,33	×1
✓ 16	27/10/2013	6th Run With Scissors Double Marathon	84,33	×1
✓ 17	28/10/2012	5th Run With Scissors Double Marathon	84,33	×1
✓ 18	30/10/2011	4th Run With Scissors Double Marathon	84,33	×1
✓ 19	31/10/2010	3rd Run With Scissors Double Marathon	84,33	×1
✓ 20	24/10/2009	2nd Run With Scissors Double Marathon	84,33	×1
✓ 21	26/10/2008	1st Run With Scissors Double Marathon	84,33	×1
✓ 22	27/7/2024	18th Burning River 50 Mile Back Endurance Run	83,69	×1
✓ 23	28/7/2018	12th Burning River 50 Mile Back Endurance Run	83,69	×1
✓ 24	6/8/2016	10th Burning River 50 Mile Back Endurance Run	83,69	×1
✓ 25	25/7/2026	20th Burning River 50 Mile Back Endurance Run	80,47	×1
✓ 26	25/7/2015	9th Burning River 50 Mile Endurance Run	80,47	×1
✓ 27	5/1/2008	1st Running from an Angel 50 Miler	80,47	×1
✓ 28	20/6/2026	29th Rachel Carson Trail Challenge	59,55	×1
✓ 29	21/6/2025	28th Rachel Carson Trail Challenge	59,55	×1
✓ 30	18/6/2022	25th Rachel Carson Trail Challenge	54,72	×1
✓ 31	24/6/2021	24th Rachel Carson Trail Challenge	54,72	×1
✓ 32	22/6/2019	23th Rachel Carson Trail Challenge	54,72	×1
✓ 33	24/6/2017	21th Rachel Carson Trail Challenge	54,72	×1
✓ 34	20/6/2015	19th Rachel Carson Trail Challenge	54,72	×1
✓ 35	21/6/2014	18th Rachel Carson Trail Challenge	54,72	×1
✓ 36	22/6/2013	17th Rachel Carson Trail Challenge	54,72	×1
✓ 37	19/6/2010	14th Rachel Carson Trail Challenge	54,72	×1
✓ 38	28/6/2026	32nd Buckeye Trail 50k	50,00	—
✓ 39	30/5/2026	12th Worlds End Ultramarathon 50K	50,00	—
✓ 40	11/4/2026	17th Forget the PR - Mohican 50k	50,00	—
✓ 41	13/12/2025	16th Bigfoot 50K Trail Race	50,00	—
✓ 42	6/9/2025	21st Youngstown Ultra Trail Classic 50K	50,00	—
✓ 43	28/6/2025	31st Buckeye Trail 50k	50,00	—
✓ 44	31/5/2025	11th Worlds End Ultramarathon 50K	50,00	—
✓ 45	12/4/2025	16th Forget the PR - Mohican 50k	50,00	—
✓ 46	7/9/2024	20th Youngstown Ultra Trail Classic 50K	50,00	—
✓ 47	6/7/2024	30th Buckeye Trail 50k	50,00	—
✓ 48	1/6/2024	10th Worlds End Ultramarathon 50K	50,00	—
✓ 49	9/9/2023	19th Youngstown Ultra Trail Classic 50K	50,00	—
✓ 50	8/7/2023	29th Buckeye Trail 50k	50,00	—
51	3/6/2023	9th Worlds End Ultramarathon 50K	50,00	—
52	9/7/2022	28th Buckeye Trail 50k	50,00	—
53	4/6/2022	8th Worlds End Ultramarathon 50K	50,00	—
54	2/10/2021	6th Conquer The Castle 50K Trail Race	50,00	—
55	11/9/2021	17th Youngstown Ultra Trail Classic 50K	50,00	—
56	10/7/2021	27th Buckeye Trail 50k	50,00	—
57	5/6/2021	7th Worlds End Ultramarathon 50K	50,00	—
58	3/4/2021	14th Fools 50K Trail Run	50,00	—
59	26/10/2019	12th Run With Scissors 50km Race	50,00	—
60	14/9/2019	15th Youngstown Ultra Trail Classic 50K	50,00	—
61	30/6/2019	25th Buckeye Trail 50k	50,00	—
62	8/12/2018	9th Bigfoot 50K Trail Race	50,00	—
63	10/11/2018	10th Bills' Badass 50K	50,00	—
64	22/9/2018	3rd Doan Creek Trail Run	50,00	—
65	15/9/2018	14th Youngstown Ultra Trail Classic 50K	50,00	—
66	7/7/2018	24th Buckeye Trail 50k	50,00	—
67	16/9/2017	13th Youngstown Ultra Trail Classic 50K	50,00	—
68	8/7/2017	23th Buckeye Trail 50k	50,00	—
69	3/6/2017	3rd Worlds End Ultramarathon 50K	50,00	—
70	29/1/2017	Winter Buckeye Trail 50k	50,00	—
71	17/9/2016	12th Youngstown Ultra Trail Classic 50K	50,00	—
72	9/7/2016	22th Buckeye Trail 50k	50,00	—
73	21/5/2016	2nd Worlds End Ultramarathon 50K	50,00	—
74	19/9/2015	11th Youngstown Ultra Trail Classic 50K	50,00	—
75	11/7/2015	21th Buckeye Trail 50k	50,00	—
76	11/4/2015	7th Forget the PR - Mohican 50k	50,00	—
77	29/3/2015	8th Fools 50K Trail Run	50,00	—
78	21/12/2014	2nd First Day of Winter 50K	50,00	—
79	6/12/2014	5th Bigfoot 50K Trail Race	50,00	—
80	13/9/2014	10th Youngstown Ultra Trail Classic 50K	50,00	—
81	12/7/2014	20th Buckeye Trail 50k	50,00	—
82	12/4/2014	6th Forget the PR - Mohican 50k	50,00	—
83	30/3/2014	7th Fools 50K Trail Run	50,00	—
84	8/3/2014	7th Green Jewel 50K	50,00	—
85	14/9/2013	9th Youngstown Ultra Trail Classic 50K	50,00	—
86	13/7/2013	19th Buckeye Trail 50k	50,00	—
87	7/4/2013	6th Fools 50K Trail Run	50,00	—
88	3/2/2013	6th Green Jewel 50K	50,00	—
89	13/1/2013	4th Run for Regis 50K	50,00	—
90	15/9/2012	8th Youngstown Ultra Trail Classic 50K	50,00	—
91	2/6/2012	1st Buckeye Buster 50K	50,00	—
92	15/4/2012	4th Forget the PR - Mohican 50k	50,00	—
93	1/4/2012	5th Fools 50K Trail Run	50,00	—
94	3/3/2012	5th Green Jewel 50K	50,00	—
95	15/1/2012	3rd Run for Regis 50K	50,00	—
96	4/12/2011	2nd Bigfoot 50K Trail Race	50,00	—
97	16/7/2011	17th Buckeye Trail 50k	50,00	—
98	17/4/2011	3rd Forget the PR - Mohican 50k	50,00	—
99	9/4/2011	1st Glacier Ridge Trail 50 km Ultramarathon	50,00	—
100	27/3/2011	4th Fools 50K Trail Run	50,00	—
101	16/1/2011	2nd Run for Regis 50K	50,00	—
102	11/12/2010	1st Mason-Dixon Madness (MDM 50K)	50,00	—
103	13/11/2010	2nd Bills' Badass 50K	50,00	—
104	18/9/2010	6th Youngstown Ultra Trail Classic 50K	50,00	—
105	18/4/2010	2nd Forget the PR - Mohican 50k	50,00	—
106	28/3/2010	3rd Fools 50K Trail Run	50,00	—
107	6/3/2010	3rd Green Jewel 50K	50,00	—
108	17/1/2010	1st Run for Regis 50K	50,00	—
109	19/7/2009	15th Buckeye Trail 50k	50,00	—
110	14/2/2009	6th Louisville's Love'n the Hills (LLTH 50K)	50,00	—
111	18/1/2009	Winter Buckeye Trail 50k	50,00	—
112	12/7/2008	14th Buckeye Trail 50k	50,00	—
113	26/1/2008	Winter Buckeye Trail 50k	50,00	—
114	15/9/2007	3rd Youngstown Ultra Trail Classic 50K	50,00	—
115	14/7/2007	13th Buckeye Trail 50k	50,00	—