The #1 thing to remember is to spell check and proof read it a few times. Any resume filled with typos will be, consciously or not, largely discounted.
Aside from that, mention goals, achievements, where the team excels, where you need to improve, and the overall team philosophy.
Sponsors are in it to get their name out there. If you're coming in 1st or 2nd at every event, but known to have a poor attitude, you're not going to be doing to sponsor any good. Of course, you could be the nicest most upstanding group of people ever but suck on the field, and also not be doing them any good. A team's job for their sponsor is to rep the sponsor. Getting involved in PB outside of playing in tournaments (maybe contributing to running events for beginners, etc.) also looks good on a resume.