If you are winning 10-5 and it is your serve which side of the court should you be serving from?

If you are winning 10-5 and it is your serve, you should serve from the right side of the court. In tennis, when the server's score is an even number, they serve from the right side, and when the score is odd, they serve from the left side. Since 10 is even, serving from the right side is the correct choice.