Hi there,
I assume that other than you mentioned, you'll also need user authentication, admin user role, admin to be able to create new users.
Then golf players can log in and only then can they create a new "game sheet" in their profile. Then the provided excel sheet comes into play. I have gone through it, had to look up SUMIF but just did that and I understand it, I can code it to behave as so.
The budget is pretty low, I'm hoping my current bid would keep me motivated. I would deliver a clean code (PHP/CodeIgniter framework + MySQL database), bootstrap for a nice and responsive design, so the golfers will be able to nicely use the system on their phones.
Regards,
Julijan