Tough Mudder is an obstacle-course and endurance event series with 5K, 15K, and Infinity (multi-lap) race formats, now under the same parent company as Spartan Race following a recent acquisition. Tough Mudder Chicago 2027 is a two-day event, August 28–29, 2027, at Richardson Adventure Farm, 909 English Prairie Rd, Spring Grove, IL 60081, offering 5K, 15K, and Infinity formats both days. Saturday pricing starts at $109 for the 15K, $89 for the 5K, and $159 for Infinity; Sunday pricing starts at $104 for the 15K and $84 for the 5K. WERUCK is an independent outbound listings directory — registration and all event operations are handled directly by Tough Mudder at toughmudder.com.
Tough Mudder is an obstacle-course and endurance event series offering 5K, 15K, and Infinity (multi-lap) race formats, along with the flagship World’s Toughest Mudder, a 24-hour extreme endurance event. Tough Mudder is owned by the same parent company as Spartan Race following a recent acquisition that brought the two obstacle-race brands together.
