Leslie Porterfield holds three land-speed records and is a member of the Bonneville 200 mph club. She became the Guinness Book of World Records’ Fastest Woman in the World on a Motorcycle with her land speed record set at Bonneville in 2008.

In 2009, she returned to Bonneville to take the Top Speed of the Meet award (man or woman) on a motorcycle with her 240 MPH. This was the first time in history a woman has taken the award.