Lace up for an unforgettable urban adventure at the Run for the Zoo on Sunday, May 31, 2026, in the heart of Chicago, IL. This cherished annual event, celebrating its 48th year, offers participants the choice of a 10K or 5K distance, welcoming runners and walkers of all abilities. Typical race day conditions in late May bring comfortable temperatures, with highs around 77°F and lows near 58°F, accompanied by only an 18% chance of precipitation, creating ideal running weather.

The course is renowned for its scenic and largely flat terrain, winding through and around the iconic Lincoln Park Zoo and the surrounding Lincoln Park. Runners will be treated to breathtaking views of Chicago's magnificent skyline, the expansive Lake Michigan, and lush natural areas, with the added thrill of passing directly through animal habitats in the final stretch. While the 10K features a portion along the scenic Lakefront Trail, both distances offer a unique perspective of the city's beloved free zoo. Runners frequently praise the event for its energetic atmosphere and well-organized logistics, though some note that sections of the course, particularly the Nature Boardwalk, can be crowded and occasionally slippery with morning dew.

What truly sets the Run for the Zoo apart is the incredible opportunity to run amongst the animals and contribute directly to a vital cause. All proceeds benefit the Lincoln Park Zoo's state-of-the-art animal care, global conservation efforts, and educational programs, helping to keep the zoo free and open to the public 365 days a year. The start line for both races is located on Stockton Drive just south of Webster Avenue near the zoo's West Gate, with the finish line positioned on the east side of the Pepper Family Wildlife Center, leading directly into a lively post-race party complete with snacks and refreshing beverages, including beer for adult participants. A family-friendly affair, the event also features a Kids' Course with fun obstacles, ensuring a memorable experience for everyone.