You are never required to mark your ball on the green.
If it’s near the hole or near another players line of putt, as a courtesy, you should mark and lift it.
After all have put a ball in play from the teeing ground, the player who is farthest from the hole plays next.
Is there a penalty for not marking your ball on the green?
Marking the ball on the green is addressed in Rule 14-1 (Marking, Lifting and Cleaning Ball) and Rule 14-2 (Replacing Ball on Spot). Failure to mark the ball before lifting it results in a 1-stroke penalty.
Can you mark a ball off the green?
You can mark, lift and clean a ball on the green, but it’s a violation to do so when another ball is in motion, as your ball might influence the outcome of that stroke. But it’s OK to clean a ball when you’re taking relief from an immovable obstruction.
Why do golfers mark their ball on the green?
The marker must be placed behind the ball. It is necessary in golf to mark your ball once it is on the green in order to allow players further away to putt. If players did not mark their golf balls, then other players might hit the ball with their ball when they putt.
When did golf allow marking ball on green?
1789 Gentlemen Golfers introduced this rule: ‘In all time coming, in case in playing over the links any ball shall lye in the way of his opponent’s the distance of six inches upon the hole green, it shall be in the power of the party playing to cause his opponent to move said ball’.