Of all the antelopes, the pronghorn is credited as being the swiftest, with a top speed of 55 miles per hour at a sprint. It can sustain a top speed of 30 miles per hour over longer distances.
The springbok is an African species that is only slightly slower than the pronghorn, with a top sprinting speed of 55 miles per hour. This makes the pronghorn the fastest antelope in North America, and the springbok the fastest in Africa, with a narrow difference between the two. The wildebeest, another African antelope, has a top speed of 50 miles per hour.