Childish Nonsense

Childish Nonsense is a trail running event held in Palatine, Illinois, at Deer Grove Forest Preserve West. It offers multiple distances: 10K, 25K, 50K, and 50 miles, with courses consisting of laps on a mostly wide, non-technical trail. Runners encounter a single aid station at the start/finish area every 5.5 miles, where crew support is allowed.

The event encourages a playful atmosphere with "shenanigans" throughout the day to awaken participants' inner child. It promotes inclusivity, offering free entries to BIPOC and LGBTQ+ athletes and welcoming all gender identities. Cutoff time for all races is 8 PM. Visit the organization's website for the most recent information.