To encourage Elmer’s promising tennis career, his father offers him a prize if he wins (at least) two tennis sets in a row in a three-set series to be played with his father and the club champion alternately:

To encourage Elmer’s promising tennis career, his father offers him a prize if he wins (at least) two tennis sets in a row in a three-set series to be played with his father and the club champion alternately:

Series A: FATHER-CHAMPION-FATHER or
Series B: CHAMPION-FATHER-CHAMPION

according to Elmer’s choice. The champion is a better player than his father. Which series should Elmer choose?