I used to think it was rigged and then not but then I've witnessed some miraculous one pt or half pt covers....and the way those games played out leads me to believe that there is something tinkering with totals and sides.
Best advice is to play big only when against the public......
if not both
You have no chance in hell of picking a NBA game that isn't rigged. Afterall what's to stop a player from intentionally missing a free throw, yet making it look as though he actually tried to make it in the first place. The shooter can intentionally hit the rim, make it bounce off the rim to the left, make the ball bounce of the side of the rim to the right, you name it, these fuckers can do what they want from the free throw line to alter a point spread anytime they want. The only sport where the viewer can't visually see that the shooter at the line intentionally missed the free throw shot.