Name: Trenton Summerfest Half Marathon, 8K, and 5K
Start: 2026-06-27
End: 2026-06-29
Location: Trenton, Michigan

About the Event

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

water_drop 67.6%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 17.0° / 26.7°

wb_sunny 16.3° / 26.0°

air 12.6 km/h

water_drop 67.6%

About Trenton

Trenton is in Mercer County, and is the capital of New Jersey. The city's strategic location in between New York City and Philadelphia has historically contributed to its growth and significantly impacts local culture. Located on the Delaware River across from Pennsylvania, Trenton is the only accessible capital city in the United States to border another state.