Really, there is no single correct way to go about the sports club fundraiser process - you just need to use a little common sense. There are a lot of fundraising ideas out there that can work well for you, as long as you keep a few things in mind while you are in the planning stages of your fundraiser. The size of your group is important, as is the amount you want to raise. If you're managing a small group, then you'll want to go for a sports club fundraiser that has high profits, and you'll want to steer clear of a fundraiser where the minimums are higher than you're comfortable with, or where the shipping charges would cut into your profits significantly.
You also need to keep in mind what your intended customer base will be when you are organizing a sports club fundraiser. If you have been thinking about something like a candy bar fundraiser, for example, that sort of idea will work really well with a younger sports club where the customers will most likely be school children that the team will be selling to during lunch periods. If your customers will be older people, however, you'd probably be better off with something like a catalogue fundraiser, or maybe something like scratch cards.