if you are serving, it is the "left" side of the court
In a game of tennis, you serve from behind the baseline on the right side of the court.
I will interpret this question as asking which SIDE of the tennis court do you serve into first in tennis. The two halves of the tennis court are called "ad" (short for advantage) and "deuce." Your ad court is diagonal to your opponent's ad court and your deuce court is diagonal to your opponent's deuce court. You begin serving on your ad side diagonally into your opponent's ad side. If you are facing the net from the baseline, the ad side is the right and the deuce side is the left. In simpler terms, you start on the right side and serve diagonally into the left side of your opponent's court. This is a link to a tennis court diagram. Perhaps a visual will help better understand the answer to your question. It can be found on the related links.
A serve in tennis is when you have the ball to start a game. For instance, the score is 3-4 games, you with 3 games won, and it is your turn to serve. A serve is when you hit the ball on the opposite side of the court in the square. Example: Standing on the right side to serve, you hit it in the square on the left side.
The service box is located on a tennis court near the net, on either side of the court. It is the area where the server must hit the ball during a serve.
The ad side of a tennis court is the players left side. Or the opponents right side.
In table tennis doubles, each player on a team takes turns serving. The serve must be diagonal, starting from the right side of the server's court to the opponent's right side. The serve must bounce on the server's side first, then over the net to the opponent's side. The serve must also be hit from an open palm and be below the waist. If the serve hits the net and goes over, it is a let and the serve is retaken.
In pickleball, you serve from the right side of the court.
In tennis, you serve the ball from behind the baseline into the diagonally opposite service box on the other side of the net.
his o he side of the court
deuce side..the left side is the ad side
In volleyball, you serve from behind the back boundary line on your side of the court.
You need to start on the right side of the badminton court because in your first serve, you are serving evens. (0) For evens (0,2,4,6,8) you stand on the right side of the court to serve and for odds (1,3,5,7,9) you stand on the left side of the court to serve.