As an professional golfer where do I enter the expenses for my caddy and my coach?

If you are a self-employed golfer you can typically file as these expenses as self-employment expenses on Form T2125 (Statement of Business or Professional Activities). Link for reference

Here is some additional information on filing as self-employed. 

However, to ensure these expenses are properly claimed:

1. Are you registered as self-employed?
2. Do you have proper documentation/receipts for these expenses?
3. Are these expenses exclusively for your professional golfing career?

If you're not filing as self-employed or need additional assistance please let me know and I will provide further options.