Leaky Hourglass Ultra Halfway, MO   Aug 29, 2026

The Leaky Hourglass is a Last Man Standing event with a twist. Every lap you lose a minute from the cutoff. So the first lap you have 60 minutes to complete the 4.167 mile out and back. The following lap you will only have 59 minutes to do so. This will continue until there is only one person capable of completing a lap.

The course is a chip and sealed rural highway with rolling hills. Each lap will have roughly 250′ of elevation. There will be one manned aid station at the start/finish and one unmanned aid station at the turn around.

Note: This is a not a closed course, meaning there will be traffic. Runners should always run facing traffic, and will be required to have a headlamp and flasher after sunset. Aid Stations Start/Finish- Tailwind Endurance Fuel, water, chips, pickles, candy bars, Scooby snacks, and various other hot and cold options throughout the day. Turnaround- Tailwind Endurance Fuel, water, and various prepackaged snacks in a tote to grab and go. Where can I stay? The event is 20 miles North of Springfield, MO which has dozens of hotel options. Primitive camping will also be allowed on site for Friday and Saturday night.