The side winning a rally shall add 1 point to its score.
When the score becomes 20-20, the side which scores 2 consecutive points shall win that game, if the score becomes 29-29, the side that scores the 30th point shall win that game.
The side winning a game serves first in the next game
When one side reaches 11 points, both players get a 60 second break.
Both sides get a 2-minute break between first and second games, and another 2-minute break between second and third game
For doubles matches, the rules are
One service only
Back service line remains and the current rule applies.
The chart below explains the 3x21 rally point scoring system for doubles matches.
Course of action / Explanation
Score
Service from Service Court
Server & Receiver
Winner of the rally
Love All
Right Service Court. Being the score of the serving side is even.
A serves to C A and C are the initial server and receiver.
A & B
A & B win a point. A & B will change service courts. A serves again from Left service court. C & D will stay in the same service courts.
1-0
Left Service Court. Being the score of the serving side is odd.
A serves to D
C & D
C & D win a point and also right to serve. Nobody will change their respective service courts.
1-1
Left Service Court. Being the score of the serving side is odd.
D serves to A.
A & B
A & B win a point and also right to serve. Nobody will change their respective service courts.
2-1
Right Service Court. Being the score of the serving side is even.
B serves to C
C & D
C & D win a point and also right to serve. Nobody will change their respective service courts.
2-2
Right Service Court. Being the score of the serving side is even.
C serves to B
C & D
C & D win a point. C & D will change service courts. C serves from Left service court. A & B will stay in the same service courts.
3-2
Left Service Court. Being the score of the serving side is odd.
C serves to A
A & B
A & B win a point and also right to serve. Nobody will change their respective service courts.
3-3
Left Service Court. Being the score of the serving side is odd.
A serves to C
A & B
A & B win a point. A & B will change service courts. A serves again from Right service court. C & D will stay in the same service courts.
4-3
Right Service Court. Being the score of the serving side is even.