Actually, I think the original question was intended to be, does one actually have to record a score to be entered into the sweepstakes?
It's a good question. If you enter one of the sweepstakes tournaments, but quit before your round is over, you still will get an email saying you are entered into the sweepstakes. So the question is, does a score actually have to get logged, or can you simply press the Sign Up button, and that's enough to enter?