The Annadel Half Marathon is a non-profit fundraising event. Over the past 16 years, we have raised funds to make the park a more beautiful place for all to enjoy!

The Half Marathon course is a hilly, and technical course designed for the experienced trail runner looking for a challenge. Enjoy gorgeous scenery with green meadows, wild flowers, and variety of beautiful trees. The race starts at the Spring Lake Oak Knolls picnic area and winds through Spring Lake Park before climbing into Annadel State Park. The Annadel Half Marathon is a tough course with over 1,500 feet of elevation gain over rocky and rooted terrain. The 5k course is an out and back route heading up a gravel fire road slightly into Annadel State park.

04-18-2026, 09:00 am - 03:00 pm