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Diablo Trails Challenge

April 4th 2026
Walnut Creek, CA
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2019 Diablo Trails Challenge Race Results (50 KM )

50 KM
Overall
Place		 Division
Place
1
 1 Lon Freeman
M
40-49
4:33:09
8:47 /mi
2
 2 Loren Baker
M
30-39
4:35:37
8:52 /mi
3
 3 Koa Gudelunas
M
20-29
5:11:26
10:01 /mi
4
 4 Adam Zastrow
M
40-49
5:12:27
10:03 /mi
5
 5 Mark Brose
M
50-59
5:27:31
10:32 /mi
6
 6 Calvin Wong
M
30-39
5:28:10
10:33 /mi
7
 7 Michael Schooler
M
40-49
5:42:49
11:02 /mi
8
 8 Justin Marsh
M
30-39
5:47:19
11:10 /mi
9
 1 Carrie Karsgaard
F
30-39
5:57:20
11:30 /mi
10
 9 Selvin Henriquez
M
40-49
5:59:25
11:34 /mi
11
 10 David Schoenberg
M
30-39
6:01:38
11:38 /mi
12
 11 Miguel Leyva
M
40-49
6:07:49
11:50 /mi
13
 12 Trevor Togashi
M
20-29
6:09:01
11:52 /mi
14
 13 Carlos Hernandez
M
40-49
6:15:15
12:04 /mi
15
 14 Nathan Warner
M
30-39
6:16:30
12:07 /mi
16
 15 John McKune
M
40-49
6:17:50
12:09 /mi
17
 16 Klas Eklof
M
40-49
6:18:26
12:10 /mi
18
 17 Justin Galbraith
M
30-39
6:20:06
12:14 /mi
19
 18 Oliver Eldredge
M
30-39
6:21:40
12:17 /mi
20
 19 Nakia Baird
M
40-49
6:23:04
12:19 /mi
21
 20 Bryan Espiritu
M
40-49
6:29:10
12:31 /mi
22
 21 David Wells
M
30-39
6:29:11
12:31 /mi
23
 22 Eriberto Perez
M
40-49
6:30:55
12:34 /mi
24
 23 Markham Yonkers
M
40-49
6:32:33
12:38 /mi
25
 24 Scott Thomsen
M
30-39
6:36:09
12:45 /mi
26
 25 Elfego Orozco
M
20-29
6:41:13
12:54 /mi
27
 26 Joseph Kuhl
M
30-39
6:41:15
12:54 /mi
28
 27 Roberto Gonzalez
M
30-39
6:42:53
12:58 /mi
29
 28 Tony Verdon
M
30-39
6:50:01
13:11 /mi
30
 29 Chris Plunkett
M
40-49
6:51:43
13:15 /mi
31
 2 Georgie Abel
F
30-39
6:53:28
13:18 /mi
32
 30 Alexander Stroup
M
40-49
6:57:16
13:25 /mi
33
 31 Samir Shah
M
40-49
6:57:28
13:26 /mi
34
 3 Tracey Ziomek
F
40-49
6:58:36
13:28 /mi
35
 32 Peter Bonanno
M
30-39
7:04:08
13:39 /mi
36
 4 Angela Xiong
F
30-39
7:04:09
13:39 /mi
37
 33 Matt Ruetman
M
20-29
7:05:24
13:41 /mi
38
 34 John Zerbe
M
50-59
7:05:26
13:41 /mi
39
 35 Brian Mulholand
M
30-39
7:05:41
13:42 /mi
40
 5 Lisa Cross
F
50-59
7:08:53
13:48 /mi
41
 36 Rob Brazier
M
30-39
7:09:09
13:48 /mi
42
 6 Kelly Coogan-Gehr
F
30-39
7:11:21
13:52 /mi
43
 37 Kevin Hostettler
M
30-39
7:12:02
13:54 /mi
44
 38 David Temple
M
40-49
7:12:03
13:54 /mi
45
 39 Erik Joelsson
M
40-49
7:15:18
14:00 /mi
46
 40 Mihai Boitor
M
30-39
7:15:54
14:01 /mi
47
 41 Steven Nicosia
M
40-49
7:18:03
14:05 /mi
48
 7 Juliana Deshkevich
F
30-39
7:18:14
14:06 /mi
49
 42 Tyson Underwood
M
30-39
7:19:54
14:09 /mi
50
 8 Hilary Garcia
F
30-39
7:25:21
14:20 /mi
51
 43 Ken Brunt
M
50-59
7:25:22
14:20 /mi
52
 44 Sean Grove
M
40-49
7:27:16
14:23 /mi
53
 45 Daniel Huang
M
20-29
7:27:34
14:24 /mi
54
 46 Lawrence Callaway
M
30-39
7:29:23
14:27 /mi
55
 47 Erkan Diri
M
40-49
7:29:31
14:28 /mi
56
 9 Tatsiana Lahunovich
F
40-49
7:30:32
14:30 /mi
57
 10 Jackie Russell
F
30-39
7:34:46
14:38 /mi
58
 48 Andrew Hovanes
M
30-39
7:35:57
14:40 /mi
59
 49 Tyler Wells
M
40-49
7:36:54
14:42 /mi
60
 50 Ted Clement
M
50-59
7:38:28
14:45 /mi
61
 51 Nathaniel Gallup
M
20-29
7:38:42
14:45 /mi
62
 52 Matthew Larkins
M
20-29
7:38:46
14:45 /mi
63
 53 David Denison
M
50-59
7:41:06
14:50 /mi
64
 11 Nancy Skversky
F
40-49
7:43:24
14:54 /mi
65
 12 Kristin Simonson
F
40-49
7:45:50
14:59 /mi
66
 54 Matthew Guthaus
M
40-49
7:45:50
14:59 /mi
67
 55 Kalen Darling
M
30-39
7:49:29
15:06 /mi
68
 56 Noa Sakamoto
M
30-39
7:49:30
15:06 /mi
69
 57 Doanh Nguyen
M
50-59
7:49:44
15:07 /mi
70
 58 Jesus Chavez
M
30-39
7:51:37
15:10 /mi
71
 13 Syntyche Millena
F
30-39
7:53:59
15:15 /mi
72
 59 Carl Ashcroft
M
50-59
7:57:52
15:22 /mi
73
 14 Ashwin Swenson
F
30-39
8:00:25
15:27 /mi
74
 60 Himamukka Mala
M
40-49
8:06:02
15:38 /mi
75
 61 Gary Eldridge
M
50-59
8:06:10
15:38 /mi
76
 62 Michael Bolden
M
40-49
8:07:58
15:42 /mi
77
 15 Cara Gilmore
F
30-39
8:08:30
15:43 /mi
78
 63 Anthony Rozales
M
40-49
8:10:41
15:47 /mi
79
 64 Bem Jones-Bey
M
30-39
8:12:10
15:50 /mi
80
 65 Douglas Housman
M
30-39
8:15:34
15:57 /mi
81
 66 Niloy Sen
M
30-39
8:16:48
15:59 /mi
82
 16 Elizabeth Harvey
F
50-59
8:19:33
16:04 /mi
83
 17 Angela Mendez
F
40-49
8:20:49
16:07 /mi
84
 67 Jeff Kosbie
M
30-39
8:21:23
16:08 /mi
85
 18 Claudia Graetsch-Vasquez
F
40-49
8:21:28
16:08 /mi
86
 19 Laura Spain
F
50-59
8:21:28
16:08 /mi
87
 68 Hull Xu
M
40-49
8:23:01
16:11 /mi
88
 69 Peter Forward
M
50-59
8:23:14
16:11 /mi
89
 70 Orgil Tuvshintugs
M
20-29
8:24:01
16:13 /mi
90
 20 Burmaa Avirmed
F
50-59
8:24:24
16:14 /mi
91
 71 Hiroaki Oiso
M
30-39
8:24:50
16:14 /mi
92
 21 Maria Montanez
F
40-49
8:26:47
16:18 /mi
93
 72 Sandeep Koka
M
40-49
8:27:20
16:19 /mi
94
 22 Allegra Porter
F
30-39
8:29:40
16:24 /mi
95
 23 Kerry Friedrichs
F
40-49
8:31:04
16:26 /mi
96
 73 Martin Whitcomb
M
60-69
8:35:38
16:35 /mi
97
 74 Geoff Quick
M
50-59
8:36:31
16:37 /mi
98
 24 Rachel Allison
F
40-49
8:37:46
16:39 /mi
99
 75 James Marinas
M
40-49
8:38:00
16:40 /mi
100
 25 Heidi Faria
F
40-49
8:38:43
16:41 /mi
101
 26 Nadia Costa
F
40-49
8:39:17
16:42 /mi
102
 27 Ashley Clemens
F
30-39
8:44:12
16:52 /mi
103
 76 Mike Beckwith
M
40-49
8:44:19
16:52 /mi
104
 28 Gantuya Larkins
F
30-39
8:45:05
16:54 /mi
105
 77 Tim Lindemann
M
50-59
8:46:40
16:57 /mi
106
 78 Oscar Osorio
M
40-49
8:47:59
16:59 /mi
107
 79 Francisco Magana
M
50-59
8:50:44
17:04 /mi
108
 29 Lidia Deleon
F
40-49
8:50:47
17:05 /mi
109
 30 Zagdaa Baatar
F
40-49
8:52:54
17:09 /mi
110
 80 Eric Miller
M
30-39
8:56:55
17:16 /mi
111
 81 E Joelsson
M
<20
9:01:33
17:25 /mi
112
 82 James Buchananan
M
20-29
9:02:11
17:27 /mi
113
 83 Joe Campos
M
20-29
9:04:39
17:31 /mi
114
 84 John Hanson
M
50-59
9:06:14
17:34 /mi
115
 31 Cecelia Wolfram
F
60-69
9:21:38
18:04 /mi
116
 85 Brysant Newton
M
20-29
9:23:11
18:07 /mi
117
 86 Alejandro Abarca
M
50-59
9:25:17
18:11 /mi
118
 87 Travis Schroeder
M
30-39
9:27:49
18:16 /mi
119
 88 Ryan Martinez
M
20-29
9:27:51
18:16 /mi
120
 89 Tom Kahl
M
40-49
9:28:23
18:17 /mi
121
 32 Maureen Polacci
F
40-49
9:28:55
18:18 /mi
122
 90 Darren Davis
M
50-59
9:30:27
18:21 /mi
123
 33 Julia Bramer
F
50-59
9:32:06
18:24 /mi
124
 91 Justin Ngo
M
30-39
9:32:08
18:24 /mi
125
 92 Lin Hua Cheng
M
30-39
9:32:10
18:24 /mi
126
 93 Richard Jennings
M
50-59
9:32:39
18:25 /mi
127
 34 Christina Jennings
F
50-59
9:32:39
18:25 /mi
128
 35 Irene Tang
F
50-59
9:33:15
18:27 /mi
129
 36 Rosaly Zambrana
F
40-49
9:33:49
18:28 /mi
130
 94 Chau Pham
M
60-69
9:34:32
18:29 /mi
131
 95 Hart Singh
M
40-49
9:43:47
18:47 /mi
132
 96 Anthony Garcia
M
30-39
9:59:56
19:18 /mi
133
 37 Ellen Oppenheimer
F
60-69
10:01:22
19:21 /mi
134
 97 Daniel Chapman
M
50-59
10:02:33
19:23 /mi
135
 98 Michael Kiel
M
50-59
10:04:37
19:27 /mi
136
 38 Melanie Astin
F
30-39
10:05:06
19:28 /mi
137
 99 Tuan Ha
M
40-49
10:12:18
19:42 /mi
138
 100 Mubarak Seyed
M
30-39
10:17:54
19:53 /mi
139
 101 Jason Lehrbaum
M
50-59
10:20:19
19:57 /mi
140
 39 Jamie Page
F
30-39
10:24:48
20:06 /mi
141
 40 Andrea Wuttke
F
50-59
10:25:07
20:07 /mi
142
 41 Nyobugi Okullo
F
40-49
10:27:12
20:11 /mi
143
 42 Sallie Arellano
F
40-49
10:28:42
20:14 /mi
144
 43 Erdenedalai Sangiragchaa
F
40-49
10:29:05
20:14 /mi
145
 44 Dorothy Leo
F
30-39
10:31:40
20:19 /mi
146
 102 Donnie Hillock
M
20-29
10:32:07
20:20 /mi
147
 103 Tony Nguyen
M
40-49
10:32:19
20:21 /mi
148
 45 Ekta Basu
F
40-49
10:37:43
20:31 /mi
149
 104 Raja Bose
M
30-39
10:37:44
20:31 /mi
150
 105 Mani Srinivasan
M
40-49
10:37:45
20:31 /mi
151
 46 Baigalmaa Dorj
F
30-39
10:40:26
20:36 /mi

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