Wiki: Equitable Stroke Control (ESC) is the downward adjustment of individual hole scores for handicap index purposes in order to make handicaps more representative of a player's potential ability. ESC sets a maximum number that a player can post on any hole depending on the player's Course Handicap.
What that says essentially is that it is a system designed to prevent "blow up holes" and save "disaster rounds" from happening.
ESC is used only when a player's actual or most likely score exceeds the player's maximum number based on the table below.
|Course Handicap||Maximum per Hole Score|
|9 or less||Double Bogey|
|10 to 19||7|
|20 to 29||8|
|30 to 39||9|
|40 or more||10|
This is all taken care of for you in your dashboard or on courses you may potentially play in the future in the course search and display section of the site.