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4 Fore 30 Infinity Backyard Ultra

Macks Creek, United States • 15 Nov 2025

The 4 Fore 30 Infinity Backyard Ultra is an exciting endurance running event taking place in Macks Creek, MO. Celebrating its 8th year, this unique race follows the format of Big's Backyard Ultra, where participants must complete a 4.1667-mile loop within one hour, with the challenge continuing until only one runner remains. The event promotes community spirit, with all profits benefiting the Kids' Harbor Child Advocacy Center. Runners can expect race swag, food at aid stations, and a supportive atmosphere. The race has no cap on participants, making it an inclusive event for all endurance enthusiasts. Visit the organization's website for the most recent information.

United States Missouri Macks Creek

Race information

Website Registration
4 mi
4.1667 Miles
Visit the organization's website for the most recent information.
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