Prepare for a rewarding challenge at the Jug End Loop Ultra, set for August 22, 2026, in scenic Egremont, Massachusetts. This beloved event, organized by the Berkshire Ultra Running Community for Service (BURCS), offers a unique 6-hour timed ultra or a 4.2-mile single-loop race, all while supporting vital local charities like the Louison House and Dana Farber. Runners consistently describe the miles here as hard-earned, an honest testament to the course's character and the fulfilling experience it offers.

The course itself is a captivating 4.2-mile loop traversing the Jug End Loop Trail within Jug End State Reservation. You'll journey through picturesque woods, expansive fields, and a charming apple orchard, enjoying breathtaking views of the Berkshire hills. Each lap presents approximately 830 feet of elevation change, with roughly 2.1 miles uphill and 2.1 miles downhill, ensuring a dynamic and engaging experience on 95% un-paved trails. In the final hour of the 6-hour event, a shorter 0.75 or 0.88-mile mini-loop becomes available, allowing participants to maximize their mileage and hit personal goals. Typical race day conditions in late August bring comfortable highs around 77°F and lows near 56°F, with only a 14% chance of precipitation.

What truly sets the Jug End Loop Ultra apart is its commitment to both community and the environment. All finishers are celebrated with a unique 16 oz handmade ceramic mug. The race actively promotes sustainability by encouraging runners to bring their own reusable bottles, as disposable cups are not provided at aid stations. Aid stations are typically well-stocked with water, electrolytes, fresh fruit, soda, and a variety of salty and sweet items, with "real food" options often appearing for ultra distances. The Jug End Loop Ultra provides a memorable trail running experience with its challenging terrain, stunning scenery, and strong charitable focus, making it a must-do event on the trail running calendar.