(WSJ ) Beyond the obvious (softball, basketball, cycling, running), there were ones we couldn't identify without asking the participants.
How Many Sports Are Played in Central Park?
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SEPTEMBER 19, 2012
Chris Herring, WSJ

The Wall Street Journal recently spent a day in the park, seeking to find out how many different sports are played across its 863 acres in one afternoon.
The answer: 29.
Read more: Wall Street Journal