Huffin for the Stuffin 5K, 10K, & Half Marathon - Fountain Valley, CA

At Race Ready Athletics, we’re dedicated to breaking down barriers and empowering individuals to reach their running goals. Our affordable races offer a warm and inviting atmosphere where you can connect with fellow runners and get to know your race director personally. Don’t worry about hydration or fuel—we’ve got everything covered so that you can focus entirely on your performance.

Our events are designed with flexibility in mind. You can choose from three different race distances on the day of the event, making it easy to pick the challenge that feels right for you. Plus, we offer special incentives for signing up for multiple races, including discounts, free entry to additional events, and exclusive Race Ready Athletics shirts for those who complete 10 or more races in a calendar year.

Join us for an exciting run through the stunning Mile Square Park in Fountain Valley, California. Whether you’re aiming for a 5K, 10K, or Half Marathon, this event promises an unforgettable experience surrounded by the park's natural beauty.

Event Details:
Location: Mile Square Park, 16801 Euclid St, Fountain Valley, CA 92708 - Race starts and ends in Parking Lot E
Bib Pickup: Begins at 7:00 AM
Race Start Times:  Half Marathon: 7:30 AM
5K, 10K: 8:00 AM
Parking Fee: $5.00 per car at Mile Square Park (opens at 7:00 AM). Limited free street parking is also available.
Course Map: Course Route
Early Start: Participants wishing to start early can begin 30 minutes before the official start time. Park outside and pick up your bib early.
Course Description:
The race begins and concludes in Parking Lot E. Directions to Start

5K and 10K runners will enjoy a scenic loop around the park, passing by Freedom Hall and Swan Lake before returning to the start.

5K: 1 loop
10K: 2 loops
Half Marathoners will complete 4 loops around the park, with an additional final loop around the playground before heading back to the finish.
Half Marathon Course Route
Water stations are conveniently located near Shelter Number 4 and the pass-through lane near the start/finish in Parking Lot E.

Course Time Limit: 3 hours and 30 minutes. You must cross the finish line by 11:00 AM.

What You Get:
All participants will receive a finisher's medal, finish line treats, and free downloadable race photos.

Race results will be posted on our website within 12 hours of the race.

Gear Check: Personal items can be stored with our staff at the Race Ready Tent.

Water Stations: Two fully stocked water stations are available on the course, with Gatorade at all stations.

Race Photos: Our course photographer will capture your journey, and you can download your photos for free within 24 hours of the event.

Results: This is a gun-timed event, and race results will be published on RunSignup within 12 hours of the race.

We do not offer refunds, but you can defer your entry up to 48 hours before the event. You can also transfer your registration to another person for free up to 48 hours before the event.

Who Can Register:
Our races are open to everyone—runners of all ages and abilities are welcome! Whether you’re a seasoned runner, a casual jogger, or a first-time walker, you’re invited to join us. Families with children and strollers are encouraged to participate, as we strive to create an inclusive and welcoming atmosphere for all.

We can’t wait to see you at Mile Square Park for a day filled with fitness, fun, and camaraderie. Lace up your running shoes and prepare for a memorable race in this beautiful setting!