You can play Basketball, Horse, and Karate against a friend.

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It works for basketball when you can play three times a week, but in football the field must be limited.

FORBES: Connect

You can play with some -- do some obstacle course, play basketball and tennis.

WHITEHOUSE: Opening the 2011 White House Easter Egg Roll

But a basketball game is four quarters, and if you only play the first half well, you can blow the game in the second half.

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