Trail Running calendar near Brookline 2025-2026

Challenge yourself at the Vermont 50, a legendary mountain bike and ultra run at Ascutney Outdoors. Join racers, relays, vendors and kids fun races while supporting Vermont Adaptive on Sept 27, 2026.

Hit the newly restored Moosup Valley State Park Trail on Sunday, September 27 for scenic 5K, 10K and a kids fun run on all trail terrain. Post race food and gear, leashed dogs welcome, and proceeds support the Rotary Club of Plainfield.

Run scenic, rooty trails in Groton Town Forest on October 4 with 9.5 mile and 3.4 mile options through rolling hills and rocks. Limited to 250 runners with refreshments and awards.

Run the Midstate Massive Ultra Trail on October 10 to 11, 2026 across central New England, a UTMB Index point to point ultramarathon along the Midstate Trail. Choose 100 mile, 50 mile or 50K courses that wind through mountains, fields and r..