There is one primary way to earn skate points in Splash.
Earning Skate Points:
Enter the Skate High venue and press join game. Once you have entered the game there are 1 of 4 game modes that can be played. All game modes give you Skate Points when the round is complete.
Each game mode has a ranking position for everyone in the game, if you came 1st in your game mode, you would earn the highest amount of skate points for that round.