Categories of Ball Sport

A.
Basketball
Soccer
Hockey

B.
Baseball
Football
Tennis
Golf

(Continuous/Continual)

A.

Basketball
Soccer
Hockey

Baseball
Football

B.
Tennis
Golf

(Team/Individual)

A.

Basketball
Soccer
Hockey

Baseball
Football
Tennis

B.
Golf

(Opponent is Human/Opponent is Human & Environment)

A.
Baseball
Soccer
Tennis
Golf
Football

B.
Baseketball
Hockey

(Outdoor/Indoor)

A.
Baseball
Football

B.
Basketball
Hockey
Soccer

(Positions are Fixed/Positions are Fluid)