I think it is baseball.
The Mesoamerican Ballgame.
The oldest sport is baseball in America
The history of organized sport in the United States begins with the New York Knickerbockers in the l840s. The Knickerbockers, a social club much like a modern country club, was the first known baseball club.
I think polo is an oldest animal sport
basketball is the 2nd oldest.
The oldest team sport is Horse Polo, dating back to 600BC
The oldest known olympic sport is bull jumping. Source: Chachanswers.com
hockey and rugby