4 Fore 30 Infinity Backyard Ultra: Details & Schedule - [Your Guide]

24 May, 2025

Can you imagine pushing your physical and mental limits in a test of endurance that lasts not hours, but potentially days? The 4 Fore 30 Infinity Backyard Ultra in Mack's Creek, MO, offers a unique opportunity to experience just that, challenging runners to go the distance, one grueling hour at a time.

For the eighth consecutive year, the 4 Fore 30 Infinity Backyard Ultra is set to return, promising an even bigger and more challenging event. Scheduled for Saturday, November 15, 2025, the race will take place at Ballparks National, located at 480 Kissick Way, Mack's Creek, MO. The premise is deceptively simple, yet brutally effective: participants must complete a 4.1667-mile loop within one hour. At the top of each subsequent hour, they must do it again. And again. And again. The last person standing, the one who completes one more loop than all the others, is declared the winner.

This isn't just a race; it's a test of wills. It follows the established rules of Big's Backyard Ultra, a format that has gained popularity for its raw, unyielding demands. The event's structure ensures that every participant is constantly pushing their boundaries. This structure allows for a true test of endurance. The race doesn't end until only one runner can complete the loop in the allotted time.

For those looking to prepare, keep in mind the race will follow the standard backyard ultra rules. The race will start promptly at 7:00 am on Saturday, November 15, 2025, requiring all participants to be on the starting line. If you wait until Saturday morning to arrive, be sure to give yourself plenty of time to check in and get settled before the 7:00 am start time. And for those who are planning on attending, a very important item is the availability of long-range weather forecasts and 30-day weather forecasts for any location to help in preparation.

The event benefits Kids Harbor Child Advocacy, adding a layer of community engagement and purpose to the challenge. Fund Runs also organizes the annual 4 Fore 30 race, which is scheduled for Saturday, December 6th, in the Lake of the Ozarks. More details on the unique race can be found there. As the format mirrors Big's Backyard Ultra, the event is open to anyone.

The race's appeal extends beyond the purely competitive. It provides a platform for self-discovery, forcing participants to confront their physical limitations and mental resilience. It is a testament to the human spirit. The simplicity of the format belies the complexity of the undertaking, turning each hour into a mini-marathon of its own. The cumulative effect of repeated loops tests not only endurance but also strategy, pacing, and the ability to recover quickly.

The race is held on Saturday, November 15, 2025 at Ballparks National, Mack's Creek, MO. For anyone looking to compete, remember that the race starts at 7:00 am sharp. Prepare well and get ready for a challenging and rewarding race that will test your boundaries.

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