When you attend a Mah Jongg Tournament (sanctioned) there are standardized rules and

scoring.  This keeps the rules and game consistent, taking the surprise out of the event other

than the tiles you receive.

Take a look at the Rules and Score Sheet below:

Official Mah Jongg Rules for Tournaments

Official Tournament Score Card

 

Rules and Scoresheet provided by http://www.mahjonggmasterpoints.com/