TARC Spring Classic

APR
25
2026
Read all about the TARC Spring Classic on 25 Apr 2026 in Weston.
Sat 25 Apr 2026
50 kilometers Marathon Half Marathon 10 kilometers

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Event overview

The TARC Spring Classic is a trail race held at Jericho Town Forest in Weston, Massachusetts (start/finish: 292 Concord Road). Distances offered are 10K, Half Marathon, Marathon, and 50K, plus a free youth fun run and discounted youth entries for those 19 and under. Entry fees for the main distances are $25. Online registration closes before race week and the event typically sells out. The event follows a Leave No Trace policy and donates event profits to land conservation and trusts.

Course and logistics

The course is a 10K loop on relatively flat, smooth trails; longer distances require completing multiple laps and some extra trail to approximate half marathon and marathon distances. The loop start/end hosts the only aid station. The race is cupless, so participants must carry their own hydration. The aid station is vegan friendly and includes water, soda, fruit, dried fruit, assorted snacks, sandwiches, vegan quesadillas, chips, candy, and pickles.

The course will be marked with flagging and signs at major intersections; organizers recommend reviewing course maps and downloading the GPX file. If a runner goes off course they must backtrack; GPS files may be reviewed and failure to follow the marked course can affect official results. Pacers are not allowed. Crew access and personal gear are permitted only at the start/finish area. Adaptive athletes are welcome with appropriate equipment and approvals. Volunteers are used for parking, course support, aid station staffing, and sweeping. Visit the organization's website for the most recent information.

50 km
50k
Marathon
Marathon
Half Marathon
Half Marathon
10 km
10k

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