Explanation

To win a game, a player must reach 21 points

if the game is tied at 20-20 (or 20-all) then you are required to win by two clear points.

Badminton nets are regulated at a height of 5'1” (1.55 m) at the edges of the court

and 5' (1.52 m) at the center of the court

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 ND3-12-2022