The CATs are excited to bring you the second annual running of the Walnut Creek 5K & 10miler! This trail run is suitable for a wide variety of ages and paces. If you’re a seasoned trail runner, this race has the vibe you love! If this is your first trail race, this race has the vibe you’ll soon love! We are excited to show you the beautiful trails that 525-acre Walnut Creek Park has to offer. As a bonus, it's held on the beautiful and iconic TJ100k course- come cut your trail teeth in the footsteps of legends!
The race is approximately 90% wooded single track/double track and 10% open cross country/jeep road and features spectacular views of the 45 acre lake on site. Course links below!
CATs members will receive a $5 discount on registration to either race (you must be logged into your RunSignUp account used for your CATs membership for the discount to appear). Registrants will receive race branded swag and post-race refreshments!
Please note there are no refunds and the event will take place rain or shine. Inclement weather affecting the safety of participants or causing adverse trail impacts may cause delay or rescheduling of race.
THE NICKEL ROUTE : 446 feet of elevation gain over a 5k+ 😉
THE DIME ROUTE: 1285 feet of elevation gain over nearly 10 miles.
Registration Notes
- Please note that race day registration is not available.
- For the safety and comfort of all participants, we do not allow dogs or other pets at this event.
- Strollers are not permitted on the race course.
- Our no-refund policy has an exception for pregnancy and postpartum circumstances – please email walnutcreek510@gmail.com if you need to request a pregnancy/postpartum-related refund.

