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What do the divots on golf balls do?

Author

James Craig

Published Jan 07, 2026

Dimples on a golf ball create a thin turbulent boundary layer of air that clings to the ball's surface. This allows the smoothly flowing air to follow the ball's surface a little farther around the back side of the ball, thereby decreasing the size of the wake.

Which is better more or less dimples on a golf ball?

The number of golf ball dimples is less important than the shape and depth of the dimples. The number of dimples can affect drag, so it is important to not have too many dimples. Between 330 and 400 dimples is the optimum number. More dimples mean more focussed control over the ball trajectory.

What happens when you remove the dimples from a golf ball?

The small depressions found all over the ball ultimately determine velocity, launch and spin rate after it leaves the clubface. Alter the depth of a dimple by as little as 1,000th of an inch and you could negatively affect the ball's aerodynamics (lift and drag) while it's rocketing through the air.

Do dimples on a golf ball make it fly farther?

In effect it's a positive trade-off: "The ball pays a skin friction penalty, but gains a pressure drag advantage," Maughmer said. The difference is huge in terms of the distance a golf ball can be driven, he adds. Dimpled balls can travel nearly twice as far as smooth ones.

Why do the gold balls have dimples?

The dimples in golf balls create turbulence (that means mixed airflow!) which, if done right, reduces drag, making it go farther. The mixed airflow is of two types: laminar and turbulent.

23 related questions found

Why are golf balls not smooth?

The dimples aid the rapid formation of a turbulent boundary layer around the golf ball in flight, giving more lift. Without them the ball would travel in more of a parabolic trajectory, hitting the ground sooner (and not coming straight down).

Why do golf clubs have grooves?

Golf club grooves have the exact same function as the treads on a tire. They allow water and debris to move away from the ball's point of contact to provide cleaner contact with better control. Striking a ball from the rough can be unpredictable when there is a lot of debris between your club and the ball.

What are the dents in golf balls called?

In most cases, golf ball dimples are simply referred to as dimples. However, there are some instances when they will be called indentations or more thoroughly referred to as the golf ball dimples pattern.

How many dimples are allowed on a golf ball?

The truth is, there is not a single answer to how many dimples are on a golf ball. That's because the number of dimples varies depending on the model and manufacturer. Most often, the number of dimples per golf ball falls between 300 and 500.

How many dents are on a golf ball?

Generally, the number is anywhere between 300 and 500 dimples. American golf balls, more often than not, come with 336 dimples. While how many dimples on a British golf ball, they have 330 dimples. As for the highest number of dimples, that would be Ultra 500 Series Golf Balls (500 dimples).

How far would a golf ball go without dimples?

According to Frank Thomas, Golf Digest's chief technical advisor and former technical director of the USGA, a smooth golf ball with no dimples would travel about 130 yards when hit with a modern driver by a tour-caliber player.

Are there golf balls without dimples?

Caesar Golf Company has introduced a revolutionary new ball that helps golfers consistently hit straight shots. It has no dimples. The smooth surface on the Featherie eliminates hooks and slices.

Why do cars not have dimples in golf balls?

The dimples in a golf ball promote an earlier transition to turbulent flow and thus reduce the pressure drag of the golf ball, so it can fly further. In a car, the size is large enough to develop a turbulent boundary layer early on. Dimples would not help, but increase drag slightly.

How many golf balls are on the moon?

There are two golf balls on the moon. They were taken there by Alan Shepard in 1971, during the Apollo 14 mission. Shepard was the first American into space, and the fifth person to ever walk on the moon… but most impressively, he was the first (and only) person to ever play golf outside of the earth's atmosphere!

What are the effects of dimples?

First, dimples allow air to flow more smoothly around a ball's surface, which decreases the wake and low-pressure area behind the ball, resulting in less drag. Second, the dimples increase lift by causing the air to move faster at the top of the ball, creating lower pressure there.

What do numbers on a golf ball mean?

One-Digit Number on a Golf Ball

The truth is that they do not mean anything. The main purpose is for the identification of the ball and to differentiate it from other players. Even if you and your friend are playing using the same brand of a golf ball, you will start the game with balls of different numbers.

Which ball has 336 dimples?

On American golf balls, there are usually 336 dimples, while there are 330 on a British ball. However these numbers can vary widely. Golf balls have anywhere from 300-500 dimples. Golf ball manufacturers will manipulate the number, shape, size, and even edge angles to optimize ball flight and trajectory.

Why is a golf hole 4.25 inches?

Four-and-a-quarter inches in diameter. R&A ADOPTS 4.25-INCH HOLE SIZE That first hole-cutting implement utilized a cutting tool that was, you guessed it, 4.25 inches in diameter. The folks running the R&A apparently liked that size and so adopted it in their rules for 1891.

Did you know the average golf ball has 336 dimples?

The dimples are usually the same size as one another, but some golf balls have several different sizes of dimple on the same ball. Any number between 300 and 500 dimples is reasonable, and 336 is a common number.

How many dimples are on a Pro V1 golf ball?

The 2014 Titleist Pro V1 is a three-piece solid-core golf ball currently sporting a 352 dimple pattern. The Pro V1X is a four-piece solid core golf ball that currently has 328 dimples.

Who invented the dimples on a golf ball?

Coburn Haskell introduced the one-piece rubber cored golf ball encased in a gutta percha sphere. Then in 1905 William Taylor applied the dimple pattern to a Haskell golf ball, thus giving rise to the modern golf ball as we know it today.

How do you know if you have V shaped or grooves?

The V Groove is essentially the opposite of the U groove as it has a shallow and more rounded edge as opposed to the squared-off edge. The U groove tends to be the one that is questioned more often because of the way that it can help a player get good spin on a ball even out of the rough.

Do golf club grooves wear out?

Now, do grooves get dull? Yes, especially on wedges, where you're hitting out of the sand. So those should be replaced conservatively every three years, more often the more you play. That happens with iron grooves, too, but on a much longer timeline.

Is groove sharpening legal?

The rules of golf state that grooves must be no more than 0.035 inches wide, 0.020 inches deep and 0.075 inches from any adjacent grooves. If you play competitively, using a groove sharpener could make your clubs non-conforming and illegal for competition.

Why do golf balls travel further than baseballs?

With much lower gravity and much less air resistance, the golf ball will stay airborne longer and travel father. downward movement under the force of gravity only. What is acceleration? A force of attraction between objects that is due to their masses.