1. Cheetah: The undisputed champion, with a top speed reaching up to 70 mph (112 km/h) in short bursts.
2. Lion: While not as fast as the cheetah, the lion can still reach speeds of up to 50 mph (80 km/h) in short sprints.
It's important to note that while the cheetah is the fastest, it can only sustain its top speed for a very short time, whereas the lion can run at a high speed for a longer distance.