How or what can I use to market my website?

The forum answer is a good one. You might also want to target social media websites that relate to the sports community like ballhype.com. I'd also recommend creating a wikipedia page for your website in order to optimize it for search engine results. You can also utilize social networking websites like facebook and myspace to narrow down your target market. If you message me I can get more in depth with my answer (it's too much to list here).