tracking shouldnt be an issue, but otherwise promote a OPERATOR.com/pubwin and from that campaign page just
have normal affiliate tags on all the links, so if they go to that page and
click through you would get that player tagged to you.
Or have a special bonus code tagged to your affiliate account.
There is no end to the possibilities 
When it comes to converting, we have done some extensive flyer promotions on Atletico Madrid home games, with a fairly good result. Considering the cost of flyers and distribution is not that high.