Marlborough Birthday Bash Mad Dash 5K – Marlborough, NH 2026

On June June 27, runners from throughout New England and beyond will gather in the town of Marlborough for the running of the Marlborough 250th Birthday Bash Mad Dash. The theme of this year’s race will be Semiquincentennial: The 250th anniversary of the founding of both the United States and Marlborough. The 5K race and fun run attracts competitive and recreational runners of all ages. USATF-certified, the Mad Dash is a challenging course, winding along scenic rural roads and rolling hills lined with stone walls and spectacular views of Mount Monadnock. Commemorative t-shirts are included in the registration — but only for the first 60 registrants. Don't miss out; sign up now! Prize categories for the race this year have been greatly expanded. This year, the top three male and female runners will receive awards and prizes. First Place Men’s and Women’s runners will receive $100.00 cash Second Place Men’s and Women’s runners will receive $50.00 cash Third Place Men’s and Women’s runner