Again you are making tennis too complicated. This is the simplified version of the scoring system that I use with my students that take part in our tennis classes.

1 point for a serve

2 points for returning opponent’s serve

4 points for every ace served by your opponent regardless of whether it’s their first, second or third shot during the rally.

15 Points are added to your score if you win 6 games before your opponent gets 6 games, regardless of who won more games at 6-6. If you take an 8-6 lead in games then get broken back to 8-8 there will be no change in the score despite the fact that both players have had 5 rallies since changing scores from 15 all to 8 all. The reason for this is that players are given an opportunity to win points with their serve, return of serve and by forcing errors from opponents. These opportunities are the same irrespective of the score in games

15-10 (Player A takes a 40-0 lead) +1 game point for player A = 16-10 (Player B now gets one more chance to get back into the game). If instead you had taken a 40-40 it would be 14 all with both players getting two more chances each to win the game.

14 15 40 15 – 5 games won by player A = 20 – 10 (A now needs 4 games to win the match)

The only exception to these rules is if take an 8-6 lead in games then win the set 6-4 you would add 1 point to your score rather than just 2 points. This is because when a player wins a set 6-4 he has won it by two clear games.

The scoring system for doubles is exactly the same except in each game one team gets a bonus point added to its total so that server and receiver alternate shots whether they score or not. The bonus point encourages teams to keep their serves up instead of simply conceding serve until there is a chance to break back.

When a rally is ongoing, one of the following situations may occur:

The ball hits the net and lands inside the court. The point is replayed. The ball hits the net and lands outside the court. The point counts as long as it’s not “let”. The players get extra points if they win 6 games before their opponent gets 6 games. A service fault occurs when service was illegal (e.g., served from left court or more than once). Regardless on what shot the server won with after that, he loses his serve and gets no points for this game. An ace is scored by winning a point with your opponent’s second shot . If two consecutive shots land in, only one ace will be awarded and then the server gets 2 points.

Many of the players that play at our tennis classes do not know how to keep score and it can be quite confusing for them when they first start playing. This is why we simplified the scoring system so that everyone understands what points are being scored and who’s serving next.