Star Wars Outlaws: Speeder race locations

To unlock an ability of the Gunslinger Ace, you will need to win 3 speeder races. The problem is not winning them, but finding them.

Here is a video (not mine) showing you where to go to find them:

Be aware that speeder races are events, so it is not because you go to the indicated location that there will necessarily be a race at that time, as it is random, just like defending civilians.