When is Jamaco River Run?

Jamaco River Run takes place on Jun 20, 2026. That's in 3 weeks.

Where is Jamaco River Run located?

Jamaco River Run is held in Merrimac, Massachusetts, United States.

What distances are available at Jamaco River Run?

Jamaco River Run offers the following distances: 5K.

What is the typical weather for Jamaco River Run?

Based on historical data, you can expect temperatures between 57°F and 78°F on race day. There's approximately a 16% chance of precipitation.

Jamaco River Run (5K) - Jun 20, 2026 | Merrimac, MA

Set for Saturday, June 20, 2026, the Jamaco River Run in Merrimac, MA, invites runners to experience a charming 5K road race deeply rooted in local history and community spirit. This USATF-certified event promises a dynamic course, featuring a "mostly downhill, a little uphill" profile that guides participants along the picturesque Merrimac River and through the heart of downtown Merrimac. The race name itself, "Jamaco," pays homage to the town's historical moniker from the 1600s, adding a unique touch of local heritage to your run. Typical race day conditions in late June offer pleasant weather, with highs around 78°F and lows around 57°F, and only a 16% chance of precipitation, creating an ideal environment for personal bests or a leisurely jog.

Beyond the course, the 10th Annual Jamaco River Run is celebrated for its vibrant, family-friendly atmosphere and its dedication to local youth sports, being a 100% volunteer-driven event. The festivities kick off and conclude at Waterhouse Field, located at 74 E. Main Street, which serves as the hub for parking, bib pickup, and a lively post-race celebration. Runners can look forward to live music, delicious food, and a craft beer tent for those 21+, alongside activities for kids and an awards ceremony. Early registrants are often rewarded with a commemorative Jamaco T-shirt and swag bag.

Adding to its appeal, the Jamaco River Run partners with Sweet Paws Rescue, a local non-profit animal rescue, further demonstrating its commitment to community support. This event is not just a race; it's a cherished Merrimac tradition, offering a well-organized and enjoyable experience for all participants.