|A streamlined recumbent bicycle, Varna Diablo has achieved 81 miles per hour under human power alone.|
At the first IHPSC in1975, IHPVA founder Chet Kyle’s Teledyne Titan was clocked at a speed of 44.69 mph. In 1986, Gardner Martin’s Gold Rush (now in the Smithsonian) ridden by “Fast Freddy” Markham won the DuPont prize at a record 65.484 mph. In 1992, Cheetah, ridden by Chris Huber, broke 68 mph. In 2002, Sam Whittingham became the World Champion with a speed of 81 mph.
There are two land speed prize offerings currently open: the $25,000 DempseyMacCready Hour Record for the first single-rider to equal or surpass 90 kilometers (55.924 miles) in one hour, and the $18,000 deciMach for equaling or exceeding 75 mph over 200 meters.