My Opponent Placed A Coin Down Ahead Of His Ball To Help With His Aim And Line. Is That Allowed?

Can you put a marker down on the green to give you an idea of your target line? Is that against the Rules and, if so, what’s the penalty for doing it?

Can you put a marker down to help with your aim?
Can you put a marker down to help with your aim?
(Image credit: Getty Images)

Putting is difficult. A combination of reading the perplexing undulations on the greens and maintaining a smooth and consistent stroke is a tough combination to consistently produce.

As such, we all look for ways to make putting a little easier. We might invest in a zero-torque mallet putter. We might draw a straight line on our ball, we might even go so far as to try the AimPoint method of aligning oneself on the greens.

All those things are legal, so long as you don’t take too long to do them. In top-level competition you might fall foul of pace of play policy if your pre-shot-putting routine is too lengthy.

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But there are some things one cannot do on the putting green to make things easier. You can’t leave the flagstick lying on the ground behind the hole to act as a backstop. You can’t have a practice putt on another bit of the green before you play to get an idea of the pace. And…

You can’t put a marker down ahead of your ball to indicate the intended line of your putt and help you aim.

In fact, they’re breaking Rule 10.2b. Section 3 of that Rule says that you must not set an object down to help with aiming.

A coin placed ahead of the ball is an object set down to help with aiming – You cannot avoid a penalty if you have done this – even if you remove it before making a stroke.

Your opponent had broken Rule 10.2b(3) and should have faced the general penalty of two strokes in stroke play, or in this case, in match play – it would be loss of hole.

If a leaf has blown onto the green and it’s a good target, you can aim at that. But you can’t go and place a leaf on your target line. Rule 8.1a(2) states that you cannot move a loose impediment into a position to improve the line of play.

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Fergus Bisset
Contributing Editor

Fergus is Golf Monthly's resident expert on the history of the game and has written extensively on that subject. He has also worked with Golf Monthly to produce a podcast series. Called 18 Majors: The Golf History Show it offers new and in-depth perspectives on some of the most important moments in golf's long history. You can find all the details about it here.

Fergus is also a level-three qualified Rules official and referee.

He is a golf obsessive and 1-handicapper. Growing up in the North East of Scotland, golf runs through his veins.

Fergus once shanked a ball from just over Granny Clark's Wynd on the 18th of the Old Course that struck the St Andrews Golf Club and rebounded into the Valley of Sin, from where he saved par. Who says there's no golfing god?

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