Dog Events in Frederick, CO

There are 9 upcoming pet friendly events within 20 miles of Frederick. Use the links below to get details on each event, print directions, look at pictures, and even read reviews of last year’s event. Coming from out of town? Get a discounted rate on pet friendly hotels in Frederick.

Jun 13

All-Out Summer Breeze

Arvada, CO

All-Out Summer Breeze Bring Fido out and join in a 5K, 10K or half marathon. Get ready for some fun in the sun and a great summer season kickoff. Centrally located between Denver and Boulder, the route features a wonderfully winding trail along the Van Bibber Trail. See Details

Jun 20, 2026

Trail Dog Run

Lyons, CO

Trail Dog Run Hit the trails with your pup at this race during the Summer Vibes Bike Rally & Run Festival. Well‑behaved, leashed dogs lead the way on two scenic 2.5‑mile laps, with on‑course water for pups and people, and festival fun nearby. Owners run free with a paid dog registration. See Details

Jul 11

All Out Dog-Days

Westminster, CO

All Out Dog-Days Bring Fido out and join in a 1M, 5K, 10K or half marathon. Get ready for some fun in the sun and a great mid-season test of your training! Centrally located between Denver and Boulder, the route features breathtaking Flatirons backdrop along Big Dry Creek Trail, perfect for dogs who prefer soft surface areas. Also, don't miss the dog division and costume contest after the races. See Details

Aug 8

All-Out Runapalooza

Arvada, CO

All-Out Runapalooza Bring Fido out and join in a 5K, 10K or half marathon. Get ready for some fun in the sun and a great run in the summer heat. Centrally located between Denver and Boulder, the route features a wonderfully winding trail along Ralston Creek. See Details

Aug 15

Paws for a Dip

Thornton, CO

Paws for a Dip Celebrate the end of summer with Fido at this event, where vaccinated, well-behaved dogs can splash and socialize in the City Pool after it closes to the public! The City of Thornton Parks & Recreation organizes the event and has staff on hand to manage activities. See Details

Aug 14–16

BoogieOnTheHill Camping & Live Music Festival

Lyons, CO

BoogieOnTheHill Camping & Live Music Festival Well-behaved furry friends are welcome to join you for six live bands and play on a 9-hole disc golf course. There'll also be theme nights and spacious camping spots available on 35 private acres. See Details

Sep 19

All-Out Fall Fest

Westminster, CO

All-Out Fall Fest Bring Fido out and join in a 5K, 10K or half marathon.! Get ready for some fun in the sun and a great fall season test of your summer training. Centrally located between Denver and Boulder, the route features breathtaking views of Standley Lake and Big Dry Creek Trail, and the 10K and half marathon feature long stretches of soft surface, perfect for dogs. See Details

Nov 1

All-Out Kooky-Spooky

Arvada, CO

All-Out Kooky-Spooky Fido's invited to this annual Halloween race that courses through scenic terrain including Ralston Creek Trail and around Blunn Reservoir, ideal for both beginners and seasoned runners. There’s also a costume contest, full race swag (custom bibs, medals with free engraving, etc.), and plenty of on-course support. See Details

Dec 5

All-Out Fa La La

Westminster, CO

All-Out Fa La La Deck your halls this season with some sweet race swag! Bring Fido along to this 5K, 10K & Half Marathon. The run takes you through Big Dry Creek Trail with amazing Front Range views. See Details

Do you know of a pet-friendly pet friendly event we've missed? Post a spot to BringFido!