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2026 Lake Chabot Trail Challenge (Half Marathon & 5K) in Castro Valley, CA

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Castro Valley, CA · June 7, 2026 · Trail running

2026 Lake Chabot Trail Challenge (Half Marathon & 5K)

Castro Valley, CA · June 7, 2026 · Trail running

DateJune 7, 2026

LocationCastro Valley, CA

DisciplineTrail running

RegistrationClosed

PriceNot listed

Divisions

5KDistance

Half MarathonDistance

About the race

The race.

The 2026 Lake Chabot Trail Challenge takes place on June 7, 2026, in Castro Valley, California. Participants can choose between a 5K or half marathon distance. Both events are trail races at Lake Chabot.

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Race listing

Lake Chabot Trail Run

Castro Valley, CA · Nov 7, 2026

Free entry

<1 mi away4.8 MilesHalf Marathon30K

Race listing

Pulling race details. Checking the course notes.

Everyone who finished.

300+ finishers on record for 2026 Lake Chabot Trail Challenge (Half Marathon & 5K).

DistanceDivisionGender

Place	Name	Distance	Gender	Age group	Time
1	N. Matsuda	5K Run	M	M16-19	19:06
1	Shane Kozicki	Half Marathon	M	M18-29	1:35:01
2	C. Resendir	5K Run	M	M12-15	21:09
2	Rajan Kaushek	Half Marathon	M	M18-29	1:35:16
3	J. Masculine	5K Run	M	M16-19	21:14
3	Henry Lin	Half Marathon	M	M30-39	1:36:31
4	Levi Friesen	5K Run	M	M16-19	21:16
4	Kyle McCall	Half Marathon	M	M30-39	1:40:13
5	Robert Luna	5K Run	M	M40-49	21:23
5	JOEL TRIPLETT	Half Marathon	M	M30-39	1:40:23
6	William Sharwood	5K Run	M	M30-39	21:53
6	Mike Polidori	Half Marathon	M	M30-39	1:40:31
7	C. Gaffga	5K Run	M	M12-15	21:58
7	Schuyler Hall	Half Marathon	M	M30-39	1:40:40
8	S. Rykoff	5K Run	M	M16-19	23:48
8	Erick Perez	Half Marathon	M	M30-39	1:42:20
9	Akihiro Matsuda	5K Run	M	M50-59	23:56
9	Kimberly Sanchez-Dardine	Half Marathon	F	F30-39	1:42:40
10	Paul Pirogovsky	5K Run	M	M40-49	24:13
10	Jacob Graham	Half Marathon	M	M18-29	1:44:07
11	Alicia Laher	5K Run	F	F30-39	24:21
11	Kai Emerson	Half Marathon	M	M18-29	1:45:54
12	Caitlin Lubinski	5K Run	F	F30-39	24:36
12	Kevin Scarbery	Half Marathon	M	M40-49	1:46:05
13	Jessica Lee	5K Run	F	F30-39	25:02
13	Ariya Kaushek	Half Marathon	F	F18-29	1:49:02
14	SARAH BERKHEISER	5K Run	F	F40-49	25:19
14	Graham Kosiba	Half Marathon	M	M30-39	1:49:03
15	David Ferreria	5K Run	M	M30-39	25:23
15	Louis Cervantes	Half Marathon	M	M30-39	1:49:09
16	Anna Zhang	5K Run	F	F20-29	25:42
16	Stanley Greschner	Half Marathon	M	M40-49	1:50:22
17	J. Green	5K Run	M	M12-15	26:07
17	Rayna Harris	Half Marathon	F	F30-39	1:52:24
18	J. Lamarca	5K Run	M	M16-19	26:08
18	Balint Kurgyis	Half Marathon	M	M18-29	1:53:46
19	Suresh Bhat	5K Run	M	M50-59	26:20
19	Ilya Boym	Half Marathon	M	M50-59	1:54:39
20	Rhonda Housley-Pitts	5K Run	F	F50-59	26:25
20	E. Gerking	Half Marathon	F	F1-17	1:54:43
21	M. Greschner	5K Run	M	M12-15	26:57
21	Marlin Adams	Half Marathon	M	M30-39	1:55:07
22	Janet Groome	5K Run	F	F40-49	27:16
22	Karen Wai	Half Marathon	F	F30-39	1:56:13
23	Marco Chavez	5K Run	M	M20-29	27:19
23	Eli Rykoff	Half Marathon	M	M50-59	1:56:25
24	Ashok Ramani	5K Run	M	M50-59	27:20
24	Joshua Nguyen	Half Marathon	M	M40-49	1:56:55
25	N. Keim	5K Run	M	M12-15	27:26
25	Cindy Zhao	Half Marathon	F	F30-39	1:57:11

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How the field ran.

385 finishers on record for 2026 Lake Chabot Trail Challenge (Half Marathon & 5K). Each distance is analyzed separately; times are only comparable within one distance.

Race-day weather: 59F, clear

Finishers

230

Median finish