Summer Classic 5K

Lace up for the Summer Classic 5K on Sunday, June 28, 2026, in the historic and vibrant city of Cambridge, Massachusetts. This popular event offers runners a fast and flat 5K course through the scenic streets of beautiful downtown Cambridge, starting and finishing around the University Park Commons area. Ideal for both personal best seekers and those looking for a leisurely summer stroll, a significant portion of the race unfolds along the iconic Massachusetts Avenue. Typical race day conditions in late June bring highs around 80F and lows around 64F, with a modest 14% chance of precipitation, promising pleasant running weather.

Participants can anticipate a well-supported experience, including a water stop at Henry Street, approximately halfway through the course, with additional bottled water available at the finish line. Portable toilets are conveniently located at the starting area, and a bag check ensures your belongings are secure near the finish. Known for its lively atmosphere, the Summer Classic 5K culminates in an epic post-race party featuring live music, beverages from local breweries like Castle Island Brewing Co., and various food and snack vendors, fostering a strong sense of community spirit. Each registration includes a collectible cotton tank top to commemorate your achievement.

Part of the esteemed Cambridge Classic 5K Series, this race, introduced in 2016, is a cornerstone of the local running calendar and benefits the Cambridge Rindge and Latin High School Boys and Girls Track teams. With a total elevation gain of only 30 feet, the course is truly flat, making it accessible and enjoyable for all abilities. Whether you're aiming to set a new record or simply soak in the downtown Cambridge scenery, the Summer Classic 5K promises an unforgettable running experience for 1,000 to 5,000 participants.