Underhill Race Maps is a Massachusetts-based company creating custom maps for racing events. Its maps are designed to give athletes a clear understanding of event courses, help spectators navigate, reduce participant questions, and support city and permitting requirements. The company specializes in course, parking, and road-closure maps, which can be used in athlete guides, on event websites, and in race-day print materials.

Race directors can order a map through the company’s online shop. After an order, Underhill sends a form to collect event details, including routes, aid stations, parking information, and logos. The team then develops the map and contacts the customer if clarification is needed. Once complete, the map is delivered as both a JPG and a PDF. Customers can request edits, and adjustments are made to help ensure the map is ready for race day.

Underhill Race Maps also features a gallery of mapped races and travel maps. The company invites visitors to join its newsletter for occasional news and sales updates.