Running with the Wolves 10K

JUL
15
2026
A USATF certified 10 km out and back on the car-free Assabet River Rail Trail, starting and finishing at Kelleher Field in Marlborough on July 15, 2026. The 10K is for runners only and has a 90 minute time limit.
Wed 15 Jul 2026
10 kilometers 5 kilometers

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Running with the Wolves 10K

The Running with the Wolves 10K is scheduled for July 15, 2026, with start and finish at Kelleher Field in Marlborough, Massachusetts. The course is USATF certified and follows an out and back route on the car-free Assabet River Rail Trail.

The 10K field is for runners only. A 90 minute time limit applies; participants who have not reached the turnaround point after 45 minutes will be turned around on course by volunteers. The event takes place alongside a 5K held the same day.

Registration details include an early bird entry fee of $35 available through May 31. Entry fees increase after the early bird period and race day registration is offered at a higher fee. Registration opens March 11, 2026. Participants who register before June 21 will be guaranteed a technical shirt in their chosen size; shirt sizes and availability may be limited for later registrants.

The description focuses on course certification, participant restrictions, time limits, and registration conditions provided by the organizer. Exact start times and additional event amenities are not specified here. Visit the organization's website for the most recent information.

10 km
10k Race
5 km
5k Race
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