Most BMX fire hydrant whips in 30 seconds
Who
Matt Wilhelm
Where
United States (Grayslake)
When

The most fire hydrant whips in 30 seconds is 44 and was achieved by Matt Wilhelm (USA) at Lake County Fairgrounds in Grayslake, Illinois, USA, on 21 September 2016.

A fire hydrant whip is a full 360-degree rotation of the back wheel of the bicycle while the rider is standing on the frame of the front wheel.