Which of the following pairs is NOT correctly matched?

Blue Line - Badminton

The correct answer is Option (2) - Blue Line - Badminton

The pair that is NOT correctly matched is Blue Line - Badminton.

Blue Line - Badminton: In Badminton, there are no lines specifically referred to as "Blue Line." The court has various lines that demarcate areas for singles and doubles play, but they are not color-coded.

Duck - Cricket: In Cricket, a duck refers to a batsman getting dismissed without scoring any runs.

Deuce - Tennis: In Tennis, deuce refers to a tie score of 40-40 in a game.

Free Throw - Basketball: While not listed in the options, Free Throw refers to an attempt to score points in Basketball by shooting from a designated area behind the foul line.