08 Oct 2013 08 Oct 2013
There are 6 stadiums total:
The first four can be found in Season 1. Sakura pool becomes available in Season 2. Perth Pyramid is in Season 3 and not missable.
You can distinguish the different arenas based on the icon displayed on each event tile. For example, Sakura Pool is marked with a flower, and Perth Pyramid kind of looks like a pyramid.
Be sure to visit all six. You do not necessarily need to win the match. Just finish the race. Achievement pops at the end of the race.