Largest high-intensity interval training class

According to Official Guinness Records,

The largest high intensity interval training class is 3,804 and was achieved by Joe Wicks aka "The Body Coach" (UK), at Barclaycard presents British Summer Time Hyde Park, London, UK, on 5 July 2017. Joe Wicks attempted the record to inspire people to exercise more and eat more healthily. The attempt took place as part of the weekday schedule of events at Barclaycard presents British Summer Time Hyde Park with proceeds from the sale of tickets going to the Teenage Cancer Trust.

For a complete list of 2017 records, please visit 2017 Guinness Records in United Kingdom.

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