No matter how you reach the finish line - walk, run or roll - you pick the pace and the place, anywhere outdoors! Everyone who participates gets a Happy Little T-shirt, sticker, a commemorative bib number and finisher's medal. For good measure, we will be allowing participation between April 18 and 26 to encompass Earth Day (April 22) and Arbor Day (April 24).

Result and photo submissions can be made the weekend before Earth Day and the weekend after Arbor Day for those that can't complete their 5K during the work week. Photos and result submissions are not required, but it is a great way to engage with other participants and celebrate your achievement. When posting about your adventure on social media, we encourage you to use #RunForTheTrees #BobRoss #HappyLittle5K #MiStateParks

Packets will start mailing next March, in time for the April event. With the Happy Little Trees 5K filling up faster than a Bob Ross canvas, you'll want to register early to secure your spot.

All proceeds support tree-planting and forest protection efforts (such as invasive plant and forest pest management and early detection surveys) in state parks and recreation areas, including locations affected by tree pests and diseases like emerald ash borer and oak wilt.

Registration closes April 12 - or earlier if the 14,000-participant cap is reached to ensure timely shipping of race T-shirts, bibs and finisher medals.

Registration is closed for the 2026 event. Look for registration to open this fall for the 2027 event.