foursquare badge: 2011 US Open
Advantage: you! Congrats on checking in to the US Open- the largest annually attended sporting event in the world. Enjoy 2 weeks of heart-pounding tennis action featuring over 500 players serving up more aces than you can count. Game. Set. Check in!
How to unlock:
Follow US OPEN on foursquare.
Check in at the 2011 US Open Tennis Championships venue.
This badge can also be unlocked by checking into a venue with a main category of “Tennis Courts”.