1.you cant grab the bottum of the board with your ring or any fingers to make it do a trick (under some exceptions such as varial)
2.Your hand must be above the board at all times.
3.You cant ride backwards or sideways.
4. You cant pick up the board and go back to where you just were because you messed up.
5.You can do tricks and cant turn the board upsidown and rest it on your fingers to do them.
6.You get juged n how good the run looked by the judges.
7.You cant defy gravity and keep on going up and down the same rail in one trick.
.Pretty Much all of there rules only effect competitions.