Count against the clock

A really simple and quick game. The students count - one student per number - going around the class.
But time it, to see just how fast they can go. After a few tries, count backwards to see if they can match their top speed. Students love it!
Once they have the hang of it, start with a higher number, count by 10s, 5s, or be really tricky and count by 7s or 3s :)
This could also be used for practice saying the alphabet in the target language - any other ideas or variations? Please let me know!