Live from Fan Fest: I beat Professor Baseball

There is a crazy man walking around with a fluffy white wig and and
crazy mustache quizzing people on some baseball trivia.

My question: Before 1888 how many balls did it take to walk someone?

Answer: Nine!

Thanks to some helpful friends of Prof. Baseball giving me the answer
behind his back, I succesfully won myself a stuffed squishy baseball.
Thanks Prof. Baseball! You learn something new everyday.