2 events in Granite Bay, California

Lost Trail 5K & Half Marathon Trail Runs

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

Back in 2026: Lost Trail Finisher Medals!

Event details and schedule

The Lost Trail Half Marathon & 5K

Granite Beach, Folsom Lake SRA

The Lost Trail 5K and Half Marathon have very well-marked courses that offer scenic lake views with lots of beautiful wildflowers in between the aid stations.

Back in 2026: Lost Trail Finisher Medals! Custom Lost Trail soft-cotton race shirts are available for pre-order sale before the race for $20.

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 7 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

8:10 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: Volunteers@totalbodyfitness.com.

Race fees increase on race day.

Mighty Dog 5K & 10K Trail Runs

Granite Beach, Folsom Lake SRA

The Mighty Dog Trail Runs are in their 11th year in 2026. The event offers two distances: 5K & 10K - both for walkers, runners, and their dogs! We are excited to offer this event for athletes and their dogs and hope everyone has a fun time. Back in 2026: The Mighty Mile run for your Senior Dog.

Event details and schedule

Mighty Dog 5K & 10K Trail Runs

Granite Beach, Folsom Lake SRA

The Mighty Dog 5K & 10K races will start from Granite Beach parking area at Folsom Lake SRA. The 5K course will have one aid station at the half way point with water for both walkers and their dogs.

Back this year is the Mighty Mile. A one-mile dog freindly course for walkers and runners to bring their dear old friend along.

All Mighty Dog athletes will recieve a Mighty Dog Finisher Medal, and their dog a Mighty Dog Finisher Bandana at the finish line. Additional dogs can be signed up to accompany the walker and dog #1 for a fee of $10 per dog. Each additional dog will receive a Finisher Bandana.

Athletes and their dogs MUST run safely and without entangling other dogs. The course will have one aid station at the half way point for both walkers and their dogs.

Commemorative Mighty Dog race shirts are available for $20.

Awards will be presented as follows:

First, second, and third place in each of three divisions for the Mighty Dog 5K & 10K Run:

Small Dog (up to 25 lbs), Medium Dog (26 to 60 lbs) and Large Dog (61 lbs+) will each receive an award. There will also be awards for top Runners with no dogs in the 5K and 10K. No Awards for the Mighty Dog Mile.

Race fees increase on race day.

Event Schedule:

Registration opens - 7 a.m.

The Mighty Dog 10K Run - 8:00 a.m.

The Mighty Dog 5K - 8:10 a.m.

The Mighty Mile - 8:15 a.m.

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. Race transfers are allowed from one TBF Racing event to another within a one-year time frame. There is a $25 transfer fee.

Race for FREE Information

Our Race for FREE Athlete Volunteer Program offers a chance to get involved with multi-sport events, have fun, and earn a $50 TBF Racing Volunteer voucher good towards entry fees at any of our events this year. Each volunteer shift is 4 hours. We ask volunteers to reserve a volunteer position at any of our events by emailing Volunteers@totalbodyfitness.com as our volunteer positions will fill up quickly.