When does the service get altered in ping pong?

Answer 1

Answer 1 - If you are referring to the rules of table tennis...

The official Table Tennis rules are a comprehensive set of rules and regulations which are designed to cover any eventuality which may arise during a game.

These rules are reviewed annually by the International Table Tennis Federation (ITTF).

Throughout the history of table tennis the ITTF have amended the service rules many times.

As the best players develop ever more elaborate service techniques in order to gain an advantage over their opponent, the ITTF respond by amending the service rules in an attempt to reduce their effectiveness.

However, as any table tennis player will tell you, this is a never ending process.

Answer 2 - If you are referring to playing a game of table tennis...

When the rules of table tennis were changed in 2001 to make each game up to 11 points instead of 21 points, the number of serves that each player had was also changed.

Now, each player has two serves each, whereas in the old 21 point system, each player had five serves each.

Service alternates between opponents until one player scores 11 points, unless both players or pairs score 10 points (called deuce).

If both players reach 10 points, then service alternates after each point, until one player gains a two point lead.