"After any professional plays a tournament round, he evalutes his weakness of the day. He gets right out on the practice tee, and he works on that for the next day. There was something lacking, so improvement can happen, but it only happens with hard work. Practice after the fact. Also, get to the course in enough time that you're not rushed and hurried, so you have a chance to hit a couple dozen balls before you get to the first tee. That's what the best of the best do. They get there at least an hour and a half before their tee times."