What Is A Mud Ball... And Why Do Golfers Hate Them?

Mud balls are a highly-debated issues at the PGA Championship this week, with many of the world's top players offering an opinion... but what is a mud ball?

A golf ball in the middle of the fairway with a large mass of mud on the top of it, with an inset image of Justin Thomas and his caddie analysing his golf ball in the fairway to determine if there is any mud on it
What is a mud ball? and why is it upsetting so many players at the PGA Championship?
(Image credit: Getty Images)

Mud balls have been a hot topic of conversation at the PGA Championship so far this week, with many of the world's top players sharing their frustrations.

In fact, Xander Schauffele and Scottie Scheffler both discussed controversial PGA Championship mud balls in the post-round interviews.

When hitting the fairway is it really fair that something as innocuous as mud on the ball could disadvantage a player? or does it simply come down to the fact that, like landing in a divot, golf is full of these types of breaks and you just have to roll with it?

Before we get ahead of ourselves, you might be thinking – what is a mud ball? Well, we explain all in this handy guide...

What Is A Mud Ball... And Why Do Golfers Hate Them?

Mud balls have existed since golfers first took to the fairways, when a mass of mud clings on to the golf ball like a jockey on a horse. This often occurs following a period of heavy or prolonged rain in the lead up to a tournament or round of golf.

But perhaps no duo has done more to publicise the mud ball’s undesirability than the now-defunct partnership of Tiger Woods and Steve Williams.

Many’s the time that Tiger Woods was heard to utter, “Goddamn mud ball, Stevie!” as his ball flew erratically offline, some way from its intended target.

Why Does A Mud Ball Present Such A Problem For Golfers?

Basically, when there’s mud on the ball it can have an effect on flight trajectory, shape and distance.

While it’s true that the ball will often move in the opposite direction to the side the mud is on, that’s not always the case.

And if the mud is on top, it may spin the ball too much and balloon up in the air, costing the player distance as well as accuracy.

Justin Thomas and his caddie analysing his golf ball in the fairway to determine if there is any mud on it, with the caddie on the floor and Justin Thomas leaning down low to the ground

Players and caddies are taking time to assess the golf ball for mud before determining a plan for their next shot at the PGA Championship due to the prevalence of mud balls

(Image credit: Getty Images)

Far From A Precise Science

But note the use of the word ‘may’ in that last sentence.

The problem with the mud ball is that it is unpredictable with a huge number of variables at play.

The resulting ball flight can depend on many things.

Where the mud is located; how much there is; whether or not it stays on the ball throughout its flight and more.

Hideki Matsuyama looking at the back of his golf ball from a crouched position in the fairway to determine if there is any mud on the ball

The location of the mud can make a difference to the ball flight and trajectory, so players often take time to assess before hitting

(Image credit: Getty Images)

Any Rules Assistance?

So, do the rules of golf come to the rescue at all?

Well, no, not really unless a Local Rule permitting preferred lies is in force. Both the PGA Tour and DP World Tour sometimes use such a Local Rule in soggy conditions.

In the UK, we typically play preferred lies on the fairways through the winter months (as part of winter rules in golf). This allows us to lift, clean and place the ball within a specified distance – typically six inches or a club-length.

Generally, there will be no preferred lies in the rough.

But committees can, in exceptional circumstances, permit lift, clean and replace in the general area (i.e. the rough too) in areas of the course where it is needed.

Jeremy Ellwood
Contributing Editor

Jeremy Ellwood has worked in the golf industry since 1993 and for Golf Monthly since 2002 when he started out as equipment editor. He is now a freelance journalist writing mainly for Golf Monthly. He is an expert on the Rules of Golf having qualified through an R&A course to become a golf referee. He is a senior panelist for Golf Monthly's Top 100 UK & Ireland Course Rankings and has played all of the Top 100 plus 91 of the Next 100, making him well-qualified when it comes to assessing and comparing our premier golf courses. He has now played 1,000 golf courses worldwide in 35 countries, from the humblest of nine-holers in the Scottish Highlands to the very grandest of international golf resorts. He reached the 1,000 mark on his 60th birthday in October 2023 on Vale do Lobo's Ocean course. Put him on a links course anywhere and he will be blissfully content.

Jezz can be contacted via Twitter - @JezzEllwoodGolf

Jeremy is currently playing...

Driver: Ping G425 LST 10.5˚ (draw setting), Mitsubishi Tensei AV Orange 55 S shaft

3 wood: Srixon ZX, EvenFlow Riptide 6.0 S 50g shaft

Hybrid: Ping G425 17˚, Mitsubishi Tensei CK Pro Orange 80 S shaft

Irons 3- to 8-iron: Ping i525, True Temper Dynamic Gold 105 R300 shafts

Irons 9-iron and PW: Honma TWorld TW747Vx, Nippon NS Pro regular shaft

Wedges: Ping Glide 4.0 50˚ and 54˚, 12˚ bounce, True Temper Dynamic Gold 105 R300 shafts

Putter: Kramski HPP 325

Ball: Any premium ball I can find in a charity shop or similar (or out on the course!)

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