Put your name in as Golfer #1.
If you will only be registering yourself without a complete foursome, leave Golfer #2- Golfer #4 blank. You will be grouped into a foursome at the tournament.
If you are registering with a complete foursome but will only be paying for yourself, please include the names of the rest of your foursome anyways. Make sure to check the "I am paying for this person" box above your name.