Most people playing with a yo-yo simultaniously
Who
Yomega Corporation , Boys' Life Magazine
What
2036 people
Where
United States (Fort A.P. Hill)
When
The largest simultaneous yo-yo was achieved by 2,036 participants at an event organised by Yomega Corporation and Boys' Life Magazine (both USA) at the 2010 National Scout Jamboree in Fort A.P. Hill, Virginia, USA, on 29 July 2010. Hand clickers were used at entrances to count participants.