1 fun run, running, and walking event in Trenton, Michigan

Trenton Summerfest Half Marathon, 8K, and 5K – June 27, 2026

Looking for a fast, scenic early-summer race in Southeast Michigan? Trenton Summerfest Half Marathon, 8K, and 5K on June 27, 2026 features USATF-certified courses, flat and runner-friendly routes, and a welcoming atmosphere for every pace. The Half Marathon starts early to help athletes beat the heat, while the 8K and 5K begin a bit later—ideal options whether you’re chasing a PR or enjoying a fun run or walk with friends.

Run through Elizabeth Park, along the river in Trenton, and—if you're taking on 13.1—through Gibraltar on a course known for smooth organization, great support, and well-stocked aid stations. With low elevation gain, beautiful scenery, and strong community energy, this is a perfect way to kick off your summer racing season.

Why runners choose Trenton Summerfest:

• All distances are USATF-certified

• Early Half Marathon start helps athletes beat the heat

• PR-friendly Half Marathon with just 96’ of elevation gain

• Scenic 8K with rolling variety

• Fast, flat 5K great for runners and walkers

• Beautiful routes through Downriver - Elizabeth Park, Trenton, and Gibraltar

• Welcoming environment for all paces

• Strong on-course support and great awards

• Part of the Trivium Michigan Mega Medal Series

Part of the Trivium Michigan Mega Medal Series

Trenton Summerfest is the second race in the six-race Trivium Michigan Mega Medal Series. Register once, run your chosen distances, and earn a medal at each event—each one connecting magnetically at year’s end to form a single giant Mega Medal. Run in-person or virtually, depending on your goals and schedule.

2026 Mega Medal Series Lineup

• Prove It 5K & 10K – April 18, 2026 · Milford, MI

• Trenton Summerfest Half Marathon, 8K, & 5K – June 27, 2026 · Trenton, MI

• Dearborn Decades 5K – August 9, 2026 · Dearborn, MI

• Run the 313 5K – August 22, 2026 · Detroit, MI

• Growler Gallop Atwater 10 Mile & 5K – September 27, 2026 · Detroit, MI

• Black Toenail Friday Half Marathon & 7.5 Miler – November 27, 2026 · Commerce Township, MI