It's fall and magazine submittal season is upon us. Nope, not winter shots, it's time to send in your summer sports imagery. Magazines are typically looking for image submittals about 6 months before the magazine goes on shelf.
Anyways, here are a few previous articles that I've written to help you establish contact with photo editors, and begin making submittals.
Magazine Submittal Season
These should help get you on your way. If you have any advice please feel free to add it in comments to the articles it relates to.