XF 2.1 Filter Results

[Cupara]

Here is the deal, I have a page that lists Sports, i.e. Football, Basketball, Baseball, etc., in a list you can scroll. What I need is to be able to click on a sport and it will filter the results on the page by that sport_id. How would I go about doing this properly or ugly? Doesn't matter to me as I can work on making it pretty later on.

Examples of any code would help a lot or XenForo files I can look in for guidance.

Thanks in advance
Myth