Trail Running calendar near Harbour Heights 2026-2027

InHouse Ultra is a last one standing treadmill competition for 33 athletes held inside Run Unlimited and Twenty One Run. Competitors run five miles every hour and must complete each set to stay in the race.

A trail event in Naples, FL on 07/11/2026 with an eight hour time limit to complete as many two mile loops as desired. A fully stocked aid station will operate for the event and parking is on Sabal Palm Road.

Summer Sizzler in Tampa on 08/01/2026 features timed 5K 10K and 15K races, untimed 1 mile and kids dash, and a virtual option. The event includes chip timing, shirts and medals, free photos and finish line treats.

A self-supported six hour Fat Ass event at Walsingham Park in Seminole, FL on August 1, 2026. Runners use an approximately 3 mile paved out and back loop and self-record laps on clipboards for official results.

An ultramarathon along the Pinellas Trail covering just over 46 miles in an out and back format between St. Petersburg, Tarpon Springs and Dunedin. Registration closes Sep 2 and a Facebook group is listed for updates.

A timed lake-lap event at Lake Hollingsworth offering 12 hour, 6 hour and 12 hour team relay formats on 2.84 mile paved laps. The race has a hard cap of 200 entrants and supports the Pheel Good Foundation.

A multi distance running event in Tampa with a half marathon, 10K, 5K, 1 mile, kids dash and virtual option. Features include chip timing, designer shirts and finisher medals, with youth pricing for ages 12 and under.

A Halloween themed trail event in Englewood on October 17, 2026 featuring a 5K run and a 1 mile walk, costume awards, finisher medals, post-race refreshments, and proceeds supporting the Zoomers Scholarship Fund.

An 8K trail run through Weedon Island Preserve with mangroves, salt marsh and Tampa Bay views; race proceeds support the Friends of Weedon Island and include a technical shirt, timing and awards.

A BACKYARD Ultra in Lake Wales, FL where runners repeat a 4.167 mile loop each hour until one runner completes a final loop alone. Aid is allowed between loops but not while on course.

Buddy the Bull Stampede in Arcadia FL on 11/07/2026 features a 5K trail run, a 15K mountain bike race and a combined Stampede Challenge, with post-race food, finisher hats, activities for families, and support for Eirene Ranch.

A family oriented mud run in Ave Maria with 1.5 to 2 mile courses and 10 to 16 obstacles designed for adults and children. Participants five years and older can register and a dog option is available with a paid adult.

Celebrate Thanksgiving with this family friendly event in Tampa featuring distances from a Kids Dash to a Half Marathon. Enjoy chip timed results, finisher medals, and festive treats at the finish line.

The 6th Annual Veterans Run in Tampa returns with in-person and virtual races along the Courtney Campbell Causeway, offering 5K, 10K, half marathon, and a 15.5 mile course with certified timing and aid stations.

A point-to-point urban endurance tour from Ybor City to St. Petersburg covering about 100 mile of Tampa Bay sights, beaches and waterfronts. The mostly flat route includes five aid stations, supplies caches and specific pacing and mandatory..

Experience the natural beauty of Lakeland at Colt Creek State Park for a trail event featuring distances from 14 miles to a 60 mile ultra. Enjoy a loop based course with handcrafted medals and a post race picnic.

Experience the natural beauty of Carlton Reserve at this Florida trail event. Runners can choose between three distances and enjoy a pre race stretch session with recovery snacks and awards for various age groups.

Ragnar Trail Florida is a team relay at Alafia River State Park near Tampa on December 4-5, 2026. Teams cover 126.4 miles in formats for 8, 4, or 3 runners and the weekend includes camping, a village with evening events, and glamping option..

Experience the rugged beauty of Alva at Caloosa Fest featuring a half marathon and 5K trail race. Runners navigate scenic single track trails and rolling terrain through the Caloosahatchee Regional Park mountain bike system.

A marked 16.8 mile course preview for the 2027 LH100 at Colt Creek State Park in Lakeland, FL with limited unstaffed water stations, primitive camping available, and a park entry fee.