Fastest land speed record (female) The highest land speed recorded by a woman is 825.126 km/h (512.710 mi/h), by Kitty Hambleton (USA) in the rocket-powered SM1 Motivator in the Alvord Desert on Dec. 6, 1976. The highest speed measured during the runs was 843.323 km/h (524.016 mi/h), although she probably touched 965 km/h (600 mi/h) […]