Cambridge Half Marathon + 5K

Get ready for an exhilarating day of fitness and fun at the Cambridge Half Marathon and 5K on Sunday, November 2, 2025! Set in the picturesque Cambridge, Middlesex, this event features USATF certified courses that are perfect for both seasoned runners and newcomers looking to challenge themselves. Participants will enjoy scenic views as they race alongside the beautiful Charles River and along Memorial Drive. Whether you’re aiming for a personal best in the half marathon or just want to enjoy a lively 5K, this event promises to bring together a vibrant community of runners in a festive atmosphere. Don't miss out on an unforgettable experience that combines sport, scenery, and camaraderie! Mark your calendars for this exciting day of racing!