Virtua Tennis 3

to get this achievement you can boost against the computer or use the second controller in a exhibition match the stage to play on is (barcelona,spain) make sure game count is on 1 set count is on 1 do this 100 times an the achivevment should pop up an you dont have to hit end game just hit retry it makes it much faster.

I figured a list would be good for those who aren't sure.

These are the clay courts:

French Cup – Paris
Spain Barcelona Open – Barcelona