The Rock the Loch 5K/10K/Half Marathon (LIVE or Virtual) 2026 — Castro Valley, CA
Date
June 26, 2026
Location
Castro Valley, CA
Venue
Lake Chabot Regional Park
Start Time
12:01 AM
Entry Fee
$30.00 – $100.00
Events
The Rock the Loch Half Marathon (LIVE), The Rock the Loch Half Marathon (VIRTUAL), The Rock the Loch 10K (LIVE), The Rock the Loch 10K (VIRTUAL), The Rock the Loch 5K (LIVE), The Rock the Loch 5K (VIRTUAL)
We cannot promise you'll encounter any cryptic, aquatic creatures at Loch Chabot, but you might! We DO promise a gorgeous trail run on the scenic trails of Loch Chabot Regional Park, some quality nature therapy, and some incredible views! We'll also hook you up with some awesome swag (an awesome shirt , a handcrafted race woodallion ), a Rock the Loch beer sampler stein , & more), quality post run beverages/snacks, DJ Cryptid spinning your favorite tunes before/during/after the race, and more! If you can't join us LIVE at Loch Chabot, no problem! We're supporting a VIRTUAL participation option as well. Where : Lake Chabot in Castro Valley, CA. When: Sun, 6/28- Early Half Start- 8:15AM (for those needing 3.5-4 hours), Standard Half Start- 9:15AM (for those needing 3 hours or less), 10K Start- 9:30AM, 5K Start- 9:45AM. Course Maps: 5K Course Map , 10K Course Map , Half Marathon Course Map. Course Details: The 5K is 100% paved. It's a great course for conquering your first and/or fastest
Hotels Near This Race
Find accommodation close to the start line in Castro Valley, CA. Sorted by distance from the race venue. Book early — race weekend hotels fill fast.
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The Rock the Loch 5K/10K/Half Marathon (LIVE or Virtual) 2026 — Castro Valley, CA
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Race Travel Insurance
Don't forget travel insurance for June 26.
You've trained for months and booked a trip to Castro Valley, CA.
A pre-race injury, a delayed flight, or a family emergency can derail the whole thing.
Travel insurance can help cover your race entry fee, hotel, and flights if you can't make it,
and may cover medical costs if something goes wrong on the course. Plans typically only run
5-7% of your total trip cost — and running events are covered under standard plans with no
additional coverage needed.
Trip cancellation up to 100% of prepaid costs
Running events covered under standard plans — no add-ons needed
Trip interruption up to 150% of non-refundable costs
