InHouse Ultra

June 27th 2026
St Petersburg, FL
Backyard

A Unique Race Format in the U.S.

The only “backyard ultra” treadmill race in the world
Last One Standing format indoors, on Woodway treadmills
5 miles in 60 minutes
Spectators and energetic music throughout the entire race
Guaranteed climate at 72 degrees, a light breeze, minimal humidity
Compete against our sister studio, Twenty One Run in Salt Lake City
Limited to 14 athletes in St Petersburg and 19 in Salt Lake City!!

Rules

General Rules
- Each runner uses their assigned treadmill for the duration of the race
- Bib must be worn on the runners back for the duration of the race
- To begin each run, treadmills must be set to zero in time and distance (“reset stats”)
- Treadmill incline must be set to 0%
- Nutrition typically used when running is allowed on the treadmills
- Towels are provided on the treadmills
- Minimum attire required includes running shoes, shorts, and a top. Crop tops, sports bras, and singlets are allowed
- Headphones are allowed while running
- The winner is the last person remaining that is able to complete a 5 mile run within 1 hour. Last One Standing.

Upcoming Races

Jun 27 2026
Backyard
Multiple Loop
1 Elevation Rating
Flat or nearly flat
1 Surface Rating
Paved or very smooth surface

Results

No Past Races

Weekly Newsletter

A roundup of the week's content and most recent race results. Sent once a week on Thursday.

Recent Results

High Noon Showdown
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12 Hours | 6 Hours | 6 Hours
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100 Miles | 100 KM | 50 Miles | 50 KM
Cinderella Trail - Spring
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The Midwest Ultra Track Classic
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The Sticks
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Coz's Backyard Ultra
Holland Patent, NY - 16 finishers
Backyard
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Spence Mountain Run
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Blackfoot Ultra
Edmonton, AB - 124 finishers
100 KM | 50 Miles | 50 KM
View All Results