How fast does a cheetah run when it is catching its prey?

In general, the speed of a hunting cheetah averages 64 km/h (40 mph) during a chase, interspersed with a few short bursts when the speed may vary between 104 and 120 km/h (65 and 75 mph). The most reliable measurement of the typical speed during a short chase is 112 km/h (70 mph).

70-75 mph