Up Close on Baseball's Borders - The New York Times
40 maps and charts that explain sports in America - Vox
Maps Mania: The Global Map of Football Fandom
NFL Fandom Map Tells Us a Lot About American Regionalism
This map is your true guide to NFL fandom in America
Road America Now Offering Interactive Fan Maps For Computers, Mobile Devices - Roadracing World Magazine
Fan Maps of the Geography and Map Division
Twitter Releases Awesome Interactive Map Of Premier League Fans - Paste Magazine
NFL teams' most rabid fans, in one county-by-county map - Vox
This Is Where You Can Find Your Fellow NFL Team Fans
N.C.A.A. Fan Map: How the Country Roots for College Football - The New York Times
ACC Football Rx: NYTimes Fandom Map