Largest high intensity interval training in 24 hours (multiple venues)

According to Official Guinness Records,

The largest high intensity interval training in 24 hours (multiple venues) consists of 3,907 participants, coordinated by Herbalife Ltd. (USA) in multiple locations around the world from 6-7 March 2015. Herbalife sponsored "#WorldWorkout" as a team building experience encouraging participants to lead healthy, active lives.

For a complete list of 2015 records, please visit 2015 Guinness Records in United States.

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