Largest simultaneous stretch (multiple venues)

According to Official Guinness Records,

The largest simultaneous stretch was set by Cancer Research UK at the Race For Life One Big Day event and involved 101,246 participants at 23 locations across the UK
on 4 June 2006. Laura Hughes adjudicated attempt in London.

For a complete list of 2006 records, please visit 2006 Guinness Records in United Kingdom.

Related Images

Other United Kingdom records that might interest you:

• Fastest circumnavigation sailing non-stop, westbound, solo (female)
• First person to circumnavigate westbound sailing non-stop solo (female)
• Longest stoppie (endo;front-wheel wheelie) on motorcycle by two people
• Most blooms on a hellebore plant
• First concert at British Prime Minister's residence