Most people running 100 metres in a 1 hour relay (outdoor)

According to Official Guinness Records,

The most people running 100 metres in a 1 hour relay is 252 and was achieved by the Lebanon High School and Watertown High School (both USA) in Lebanon, Tennessee, USA, on 19 April 2012.

For a complete list of 2012 records, please visit 2012 Guinness Records in United States.

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