The Lost Trail 5K & Half Marathon

8000 Douglas Blvd.
Granite Bay, CA 95746


Registration Powered by

Event Description

Lost Trail 5K & Half Marathon Trail Runs

The Lost Trail 5K and Half Marathon are well-marked courses with beautiful single track trails along the shoreline of Folsom Lake with many scenic views. Both races have very well stocked friendly aid stations. 


Event details and schedule


The Lost Trail Half Marathon & 5K
Granite Beach, Folsom Lake SRA

Don't let the name fool you - you will Not get lost on either of these well-marked courses that have scenic lake veiws and lots of beautiful wildflowers in between the aid stations. 

Included with your race entry is the Lost Trail Finisher Medal, post race hot meal and drinks, an athlete goody bag, and awards three-deep in each age group - Plus a custom Lost Trail stemless wine goblet for either races. Lost Trail soft-cotton race shirts are available for sale prior to the race for $15. 


First place Overall Male and Female in The Lost Trail 5K & Half Marathon will receive Overall Champion Awards. There will be awards three deep in each ten-year age group for The Lost Trail Half Marathon and the 5K Run.  


Packets available at the race site from 6:30 am to 8 am.

Race Day Schedule


7:00 Registration/Packet Pick up opens


7:00 Race announcements begin


8:00 Start of the Lost Trail Half Marathon 


8:05 Start of the Lost Trail 5K


Refund and Transfer Information


TBF Racing has a No Refund policy on all of our events. A Refund requested prior to race week will be given a TBF Race credit for the amount of the entry fee minus a $25 processing fee. Credits are not given during race week. Transfers are allowed from one TBF Racing event to another within a one-year time frame. There is a $25 transfer fee. Transfers are not allowed during race week. ALL TBF Racing events are held Rain or Shine.


Find out about our RACE for FREE Volunteer program by emailing Volunteer Director


Race fees increase on race day.





Start Times

6:30 Registration/Packet pick up

8:00 Start of the Half Marathon 

8:05 Start of the 5K Run/Walk


Event Location & Accomodations

Connect on Social