Sunday, Mar 19, 2023 @ 8:00 AM

Lag Bon 10K

End of Sky Oaks Road

Fairfax, CA β€’ 10K

This Event Took Place Sun. Mar 19, 2023

EVENT SOLD OUT! No more registrations will be accepted.

-🏁-🏴-🏁-🏴-🏁- LAG BON 10K -🏁-🏴-🏁-🏴-🏁-
A trail running fundraiser dedicated to World Water Day.

Please visit our website for more info.

Would you like to experience the gorgeous trails surrounding some of Marin County’s most pristine reservoirs, while simultaneously contributing towards alleviating the global water crisis? If so, we would love to have you as a part of the Lag Bon 10K trail run!

Our goal is to raise money and awareness of the need for access to clean and reliable drinking water through our shared passion for trail running. All ticket sales collected in excess of the cost of the event will go directly to the highly effective NGO, Evidence Action for their Safe Water Now program.

Where: Lake Lagunitas Picnic Area at end of Sky Oaks Road, Fairfax CA

When: Sunday, March 24th, 2024 – Run begins at 8:00 AM

Course Info

The Lag Bon 10K is a moderately challenging and beautiful course. On this technical run you will encounter stairs, bridges, roots and rocks as well as plenty of easy going flat trails. Elevation gain/loss is approximately 400'. Event will be held rain or shine so be prepared for cold, wet and muddy conditions as well. Start/Finish is at the Lagunitas picnic area. Aid stations/bathrooms will be after Bon Tempe Dam at the 3.5 mile point and at the Start/Finish. Although people of all abilities are encouraged to participate there will be a 2 hour limit to complete the course due to permit restrictions so a walking pace is not recommended. No dogs or strollers please.

Registration Fee

Early Registration Fee* – $55

Late Registration Fee* – February 18th to March 7th – $60

Last Minute Registration Fee* (shirt size not guaranteed) - March 8th to March 22nd - $60

*Includes event T-shirt

Space is limited to 80 runners to minimize environmental impact and race day registration is not available.

Packet pick up will be at the San Francisco Running Company’s San Anselmo location on Saturday, March 23rd from 12pm to 4pm. Race day packet pick up is available for a $10 add-on due at registration checkout.


$50 gift cards to the San Francisco Running Company will be awarded to the 1st place runner in each division: Men, Women, Non-binary.

Event's current local time: 7:59 AM PT


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