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Marin Ultra Challenge

March 14th 2026
Sausalito, CA
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2025 Marin Ultra Challenge Race Results (50 Miles )

50 Miles 50 KM
Overall
Place		 Division
Place
1
 1 Jonah Backstrom
M
50-59
7:29:24
8:59 /mi
2
 2 Colin Henderson
M
20-29
7:54:35
9:29 /mi
3
 3 George Darden
M
50-59
7:55:52
9:31 /mi
4
 1 Kimberly Neely
F
30-39
8:03:00
9:39 /mi
5
 4 Holger Lindholm
M
20-29
8:12:14
9:50 /mi
6
 5 Jakob Walter
M
30-39
8:13:30
9:52 /mi
7
 6 Max Kam
M
30-39
8:13:34
9:52 /mi
8
 2 Mickey Davis
F
30-39
8:24:01
10:04 /mi
9
 7 Dylan Jones
M
20-29
8:25:23
10:06 /mi
10
 8 Collin Miller
M
20-29
8:36:44
10:20 /mi
11
 9 Connor O'brien
M
20-29
8:38:52
10:22 /mi
12
 10 Jan Gregrowicz
M
30-39
8:47:40
10:33 /mi
13
 11 Nicholas Muzik
M
20-29
8:51:39
10:37 /mi
14
 12 Connor Cole
M
30-39
8:58:37
10:46 /mi
15
 13 Erik Maclennan
M
20-29
8:59:23
10:47 /mi
16
 14 Crockett Williams
M
30-39
8:59:28
10:47 /mi
17
 15 Kirill Demtchouk
M
30-39
9:10:32
11:00 /mi
18
 16 Olivier Francon
M
40-49
9:17:34
11:09 /mi
19
 3 Anna Olsen
F
30-39
9:18:17
11:09 /mi
20
 17 Michael Walker
M
30-39
9:18:37
11:10 /mi
21
 4 Jenny Jacox
F
40-49
9:33:53
11:28 /mi
22
 5 Allison Gallaher
F
30-39
9:39:28
11:35 /mi
23
 18 Conor Drewes
M
20-29
9:41:06
11:37 /mi
24
 19 David Jack
M
40-49
9:43:10
11:39 /mi
25
 20 Jeffrey Kabel
M
30-39
9:49:13
11:47 /mi
26
 21 Alex Dove
M
40-49
9:49:57
11:47 /mi
27
 22 Carlos Mota
M
20-29
9:50:49
11:48 /mi
28
 23 Andy Kumeda
M
50-59
9:57:46
11:57 /mi
29
 24 Jordan Collins
M
30-39
10:00:55
12:01 /mi
30
 25 Jared Matcham
M
50-59
10:03:58
12:04 /mi
31
 6 Maddie Mau
F
30-39
10:06:10
12:07 /mi
32
 26 Sean Perry
M
30-39
10:17:17
12:20 /mi
33
 27 Raul Ponce
M
40-49
10:17:47
12:21 /mi
34
 28 Nissan Pow
M
30-39
10:23:09
12:27 /mi
35
 29 Samuel Bedolla
M
40-49
10:27:27
12:32 /mi
36
 30 Mark Lang
M
20-29
10:30:51
12:37 /mi
37
 7 Brianna Santos
F
30-39
10:32:03
12:38 /mi
38
 31 Aj Masters
M
20-29
10:35:29
12:42 /mi
39
 32 Robert Mann
M
50-59
10:37:57
12:45 /mi
40
 33 Manas Manduri
M
<20
10:44:26
12:53 /mi
41
 34 Chris Jones
M
50-59
10:46:11
12:55 /mi
42
 8 Michelle Lomeli
F
40-49
10:46:26
12:55 /mi
43
 9 Anna Winter
F
20-29
10:48:14
12:57 /mi
44
 35 James Melnyk
M
30-39
10:50:11
13:00 /mi
45
 36 Bill Nitzberg
M
60-69
10:51:58
13:02 /mi
46
 37 Jalen Hinson
M
20-29
10:56:22
13:07 /mi
47
 10 Missy Allen
F
40-49
11:01:06
13:13 /mi
48
 38 Derek Johnson
M
40-49
11:07:29
13:20 /mi
49
 39 Alex Delong
M
20-29
11:08:25
13:22 /mi
50
 11 Julie Lyons
F
40-49
11:08:37
13:22 /mi
51
 40 Eric Luoma
M
40-49
11:08:48
13:22 /mi
52
 41 Tuan Le
M
40-49
11:09:09
13:22 /mi
53
 42 William Barkan
M
40-49
11:09:17
13:23 /mi
54
 12 Katy Duncan
F
20-29
11:11:08
13:25 /mi
55
 43 Jeremiah Johnson
M
50-59
11:11:17
13:25 /mi
56
 44 Zachary Lottmann
M
20-29
11:12:02
13:26 /mi
57
 45 Brad Cacciatore
M
40-49
11:15:04
13:30 /mi
58
 46 James Thomas
M
20-29
11:19:31
13:35 /mi
59
 47 Rajen Joshi
M
30-39
11:21:24
13:37 /mi
60
 48 Nathan Curtis
M
30-39
11:21:26
13:37 /mi
61
 49 Mark Blackwell
M
50-59
11:21:28
13:37 /mi
62
 50 Peter Veloo
M
40-49
11:22:18
13:38 /mi
63
 13 Andrea Kane
F
30-39
11:24:34
13:41 /mi
64
 51 Jason Zimmer
M
30-39
11:29:05
13:46 /mi
65
 52 Vinh Le
M
40-49
11:29:19
13:47 /mi
66
 14 Debbie Pursey
F
50-59
11:35:12
13:54 /mi
67
 15 Lily Simmons
F
20-29
11:36:34
13:55 /mi
68
 53 Charles Hofacker
M
50-59
11:40:22
14:00 /mi
69
 54 Ian Dunne
M
50-59
11:40:43
14:00 /mi
70
 55 Kean Stancil
M
30-39
11:41:13
14:01 /mi
71
 56 Mark Tanaka
M
50-59
11:42:19
14:02 /mi
72
 57 Christopher Ahern
M
40-49
11:42:43
14:03 /mi
73
 58 Juan Miguel Silva
M
30-39
11:47:10
14:08 /mi
74
 59 Evan Young
M
30-39
11:48:07
14:09 /mi
75
 60 Forrest Hill
M
40-49
11:49:34
14:11 /mi
76
 61 Denis Yurchikov
M
40-49
11:55:03
14:18 /mi
77
 62 Cory Luellen
M
50-59
11:55:44
14:18 /mi
78
 16 Analisa Colglazier
F
40-49
11:55:48
14:18 /mi
78
 63 Dan Lagoe
M
30-39
11:55:48
14:18 /mi
80
 64 Jeffrey Mohr
M
30-39
11:56:11
14:19 /mi
81
 65 Tatsuya Kawai
M
40-49
11:56:38
14:19 /mi
82
 17 Jamie Veirs
F
40-49
11:56:58
14:20 /mi
83
 18 Haa Cheng Thai
F
40-49
12:00:03
14:24 /mi
84
 66 Yevgeny Petrilin
M
40-49
12:00:31
14:24 /mi
85
 67 Niloy Sen
M
40-49
12:04:03
14:28 /mi
86
 68 Tom Wight
M
40-49
12:05:29
14:30 /mi
87
 19 Debbie Solis
F
30-39
12:05:52
14:31 /mi
88
 69 Mark Goh
M
40-49
12:06:00
14:31 /mi
89
 70 Richard Ward
M
50-59
12:08:23
14:34 /mi
90
 71 Tim Phelan
M
50-59
12:09:14
14:35 /mi
91
 72 Blake Fleck
M
30-39
12:09:47
14:35 /mi
92
 73 Chris Lotspeich
M
40-49
12:10:12
14:36 /mi
93
 74 Aiden Williams
M
20-29
12:12:08
14:38 /mi
94
 75 Robert Schweizer
M
30-39
12:12:33
14:39 /mi
95
 76 Abraham Groettum
M
40-49
12:14:44
14:41 /mi
96
 20 Michelle Petrillo
F
50-59
12:16:23
14:43 /mi
97
 77 Erxiong Huang
M
50-59
12:17:42
14:45 /mi
98
 78 Adam Teeley
M
40-49
12:19:24
14:47 /mi
99
 79 Daniel Granger
M
20-29
12:21:09
14:49 /mi
100
 80 Lee Wang
M
30-39
12:21:54
14:50 /mi
101
 81 Doug Ballou
M
50-59
12:22:18
14:50 /mi
102
 21 Anissa Gardizy
F
20-29
12:25:15
14:54 /mi
103
 82 Geofrey Cummings
M
30-39
12:25:38
14:54 /mi
104
 83 Dylan Foreman
M
30-39
12:25:52
14:55 /mi
105
 84 Timmy Meier
M
30-39
12:25:54
14:55 /mi
106
 85 Jon Roberts
M
50-59
12:35:50
15:07 /mi
107
 86 Bruce Nguyen
M
40-49
12:36:31
15:07 /mi
108
 87 Peter Her
M
30-39
12:36:34
15:07 /mi
109
 88 Chuck Amital
M
60-69
12:42:00
15:14 /mi
110
 89 Bruce Ames
M
60-69
12:43:49
15:16 /mi
111
 90 Salam Defar
M
40-49
12:44:31
15:17 /mi
112
 22 Margaret Branick-Abilla
F
50-59
12:45:59
15:19 /mi
113
 23 Janea Isaguirre
F
20-29
12:46:16
15:19 /mi
114
 24 Rebecca Margulies
F
50-59
12:53:08
15:27 /mi
115
 25 Amanda Leone
F
40-49
12:54:22
15:29 /mi
116
 26 Amy Skeath
F
30-39
12:54:23
15:29 /mi
117
 91 Leo Sison
M
30-39
13:01:07
15:37 /mi
118
 92 Akinori Aizawa
M
20-29
13:03:21
15:40 /mi
119
 93 John Lucas
M
50-59
13:04:08
15:40 /mi
120
 27 Becky Winicki
F
30-39
13:07:57
15:45 /mi
120
 28 Holly Wallace
F
40-49
13:07:57
15:45 /mi
122
 94 Amelia Schoellenbach
M
30-39
13:12:33
15:51 /mi
123
 29 Sarah Fergot
F
40-49
13:17:18
15:56 /mi
124
 30 Leah Duran
F
30-39
13:31:29
16:13 /mi
125
 31 Mindy McCue
F
50-59
13:33:09
16:15 /mi
126
 95 Dustin Vu
M
20-29
13:38:16
16:21 /mi
127
 96 Sean Emery
M
20-29
13:40:22
16:24 /mi
128
 97 Ed Liu
M
50-59
13:40:42
16:24 /mi
129
 98 Michael Langford
M
50-59
13:43:13
16:27 /mi
130
 99 Zachary Smith
M
20-29
13:44:59
16:29 /mi
131
 100 Darshit Lakhani
M
30-39
13:45:27
16:30 /mi
132
 101 Jason Johnson
M
50-59
13:47:25
16:32 /mi
133
 32 Tehra Wieck
F
50-59
13:47:34
16:33 /mi
134
 102 Derek Pizzagoni
M
50-59
14:04:23
16:53 /mi
135
 33 Jackie Childers
F
30-39
14:06:19
16:55 /mi
136
 103 Martin Furlong
M
60-69
14:06:37
16:55 /mi
137
 104 Leonardo Colletta
M
20-29
14:07:18
16:56 /mi
138
 105 Sant-Amar Erdene
M
30-39
14:11:08
17:01 /mi
139
 106 John Lavoie
M
70+
14:20:52
17:13 /mi
140
 107 Kyle Johnson
M
20-29
14:25:29
17:18 /mi
141
 34 Maria Margarita Tascon Gonzalez
F
50-59
14:40:40
17:36 /mi

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