
Bump and run is a golf term used when playing from the green. It’s a type of shot that allows you to keep the ball low to the ground and then roll it towards the hole. This can be helpful if you are trying to avoid any obstacles near the green.
Are golf balls smooth or bumpy?
Originally, golf balls were smooth; but golfers noticed that older balls that were beat up with nicks, bumps and slices in the cover seemed to fly farther. What golf ball dimples do? The dimples on a golf ball are simply a formal, symmetrical way of creating the same turbulence in the boundary layer that nicks and cuts do.
What are the dimples on a golf ball for?
Every aspect of a golf ball has a purpose, and that includes one of the ball’s most recognizable features: the dimples. A golf ball’s dimples allow for a smooth, controllable flight and also give the ball lift by impacting the way the air flows around the ball.
When did the first golf ball have a bump on it?
Golf balls began to be produced with raised bumps on them until the very early 1900s. In 1905 the first patent for a dimpled golf ball was filed, and the rest, as they say, is history.
Why do golf balls have protrusions on them?
For a few decades, golf ball manufacturers started to place protrusions on the ball. They would have been like little bumps on the surface. However, in the early 1900s, manufacturers began creating indentations on the balls and found them to be much more aerodynamically effective than protrusions.

Why are there 336 dimples on a golf ball?
Essentially, golfers would have little hope controlling a smooth golf ball. When dimples are added to a golf ball, it creates a tiny layer of air around the golf ball that significantly cuts down drag. This forces the air to flow over a larger portion of the ball, which results in a much smoother ball flight.
Is it better to have 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.
What are the bumps on 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 on a Titleist Pro V1 golf ball?
388 dimpleNew Spherically-tiled Tetrahedral Dimple Designs– featuring a 388 dimple layout for Pro V1, and 348 for Pro V1x – are optimized to each model to maximize distance and flight consistency. Pro V1 maintains its penetrating trajectory while Pro V1x will fly higher than the prior generation.
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.
What's the hole in golf called?
the cupHole A circular hole in the ground which is also called “the cup”, 4.25 inches in diameter.
Do new golf balls make a difference?
Lab tests, including our own, show little or no loss in yardage compared to new balls, and most golfers report no appreciable difference in play. But most of this research is based on tests of mint-quality used golf balls pulled from water hazards with no understanding of how much time each ball spent underwater.
How far can you hit a golf ball without dimples?
about 130 yardsAccording 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.
Why do some golf balls spin better than others?
Premium multilayer balls with urethane covers generally are superior because they perform well throughout the bag. On wedge shots, for example, they spin more because of the soft urethane cover, and off the tee they have the same distance-producing characteristics as firmer Surlyn balls.
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.
Who invented 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 many dimples are on a golf ball?
Anywhere from 300 to 500.
Why are there dimples on a golf ball?
Originally, golf balls were smooth; but golfers noticed that older balls that were beat up with nicks, bumps and slices in the cover seemed to fly...
What golf ball dimples do?
The dimples on a golf ball are simply a formal, symmetrical way of creating the same turbulence in the boundary layer that nicks and cuts do.
Have golf balls always had dimples?
No, golf balls were originally smooth.
Is it better to have dimples on a golf ball?
Yes. The nicks and cuts were acting as "turbulators" — they induce turbulence in the layer of air next to the ball. In some situations, a turbulent...
What happens when you drive a golf ball?
When you drive a golf ball, dimpled or otherwise; it has backspin. This backspin results in the top of the golf ball moving slower relative to the air around it since they’re both traveling in the same direction. As such, there is less drag on the air that goes over the ball, creating an area of low pressure above it.
Why do golf balls have dimples?
Why Golf Balls Have Dimples. Golf balls have dimples because the turbulent flow of air they create increases Magnus lift, a lifting force which affects rotating objects while traveling through the air. It’s the same force that makes a soccer ball swerve when sliced, or a tennis ball dip during a chip shot.
Why did golfers put dimples on their golf balls?
However, until the 1900s, it was widely believed that the protrusions were the reason behind the improved range and stability.
What is the effect of the Magnus lift on a golf ball?
It is known as an impetus trajectory.
What happens to the air that goes over the ball?
As such, there is less drag on the air that goes over the ball, creating an area of low pressure above it. Air passing over this area stays hugged tight to the ball longer, following the curve of the ball and separating later. The opposite is happening on the underside of the ball.
What does it mean when air is being pushed under a ball?
Air passing over this area separates from the curve of the ball much earlier than the air flowing above the ball. The combination of these different pressure zones and resulting drag means that more air is being pushed under the ball than above it; pushing the ball up. The ball is using drag to its advantage.
What happens when a ball spins?
The opposite is happening on the underside of the ball. The ball is spinning into the oncoming air, meaning it’ s moving faster relative to the air around it resulting in more drag on the air flowing underneath the ball and an area of high pressure below the ball.
Why Do Golf Balls Have Dimples On Them?
Those dimples serve an aerodynamic purpose. The reason why golf balls have dimples is a natural selection story. Originally, the golf balls were smooth; but the golfers noticed that the older balls, which had been beaten with nicks, bumps, and slices in the cover, seemed to fly further.
Why Do Golf Balls Have Dimples On Them: Presentation Of The History Of Golf Balls
A golf ball is central to the golf game. Golf is all about balls. Well, let’s get it into the hole in the ground.
Why Do Golf Balls Have Dimples On Them: The Golf Ball Evolution
Almost everything on the surface of the earth has evolved from its origins to its present form. The golf ball is no exception. Even though there is little information about the history of golf balls, the information available can give us some understanding.
Why Do Golf Balls Have Dimples On Them: Dimple And Fluid Dynamics
Golf ball dimples and their impact on the ball that travels through the air can be described using fluid dynamics. There are two types of dynamic flow: laminar and turbulent. In general, many real-life applications are turbulent. This can generally be obtained from a factor called the number of Reynolds.
Final Words
If you’re playing golf, then you know that being able to hit the ball further away can help you win the game. But no matter how hard you hit a golf ball, the air friction will slow down. It’s also called air drag or air resistance. It is caused by friction between the ball and the air molecules.
Brief History On Golf Ball Design
Golf balls didn’t always have dimples. Modern golf balls are nothing like ones that were used in the mid-1800s. During this time, golf balls were made of molded tree sap and were referred to as “gutties.”
What Are Dimples On A Golf Ball 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.
Golf Ball Aerodynamics
The science behind golf ball aerodynamics is fascinating and crucial to understanding why and how dimples affect a golf ball’s flight.
How Many Dimples On A Golf Ball?
There is no one answer to determine how many dimples are on a golf ball. The general number of dimples on a golf ball sits between 300 and 500. However, it varies significantly between all manufacturers and models.
How Much Do Dimples Help Golf Balls
Dimples help golf balls immensely. Without dimples, a golf ball would fly in a very unpredictable fashion and would not go nearly as far as you want it to.
Why Do Golf Balls Have Different Sized Dimples?
The size, depth, and the number of dimples effect aerodynamics in a massive way. The more dimples on a ball, the lower the trajectory, and the less control a manufacturer has on the golf ball’s eventual flight.
Smooth Golf Ball
As we’ve discussed, smooth golf balls wouldn’t be much use in today’s golf world. Smooth golf balls experience a tremendous amount of drag and very little lift.
How Do Golf Ball Dimples Work?
Any object moving through the air faces the force which the air exerts on it. There are two components to the force an object flying through the air undergoes:
How Do Golf Ball Dimples Improve the Game?
Now that you understand at least a bit of the aerodynamics involved with golf ball dimples, you can look at how exactly this appears in an average round of golf. For the player, golf ball dimples serve two purposes:
Have Golf Balls Always Had Dimples?
Golf has been around for a long time, and for a lot of that time, people played with smooth balls. However, at some point in the 1800s, players noticed that their dented golf balls actually performed better than the perfectly smooth ones.
Are All Golf Ball Dimples the Same?
After learning how vital dimples are to a golf ball’s success, you may be surprised to learn that golf ball dimples are not regulated. They can have different shapes, different depths and appear in varying amounts on balls.
Golf Ball Dimples Are Not Everything
There are other things that go into how smoothly and how far a golf ball flies beside the dimples.
Conclusion
Two key forces affect your golf ball’s flight: drag and lift. Golf ball dimples have a massive impact on both, which is why they are so crucial for effective golf balls. Dimples reduce drag and increase lift.
Take Action – What You Can Do Today to Get Better
What does this mean for you? I believe in the following recipe to get better:
What happens if you don't have dimples on your golf ball?
The one with no dimples at all produced a low-flying knuckeball. “The dimples help to create lift,” Nardacci told Wall. “Once the ball leaves the clubhead, the only thing acting on the golf ball are aerodynamic forces of gravity.
How many dimples does a Titleist Pro V1 have?
For example, the 2017/18 model of the popular Titleist Pro V1 has 352 dimples on it, while Titleist’s other flagship ball from the same year, the Pro V1x, has 328 dimples. For one manufacturer, the answer to how many dimples on a golf ball was a whopping 1,070, which happens to be the record for the most dimples on a golf ball.
How deep is a golf ball dimple?
The size of golf ball dimples are most frequently measured by their depth. The average depth of a golf ball dimple is roughly 0.010 inch. The circumference of dimples also varies from model to model. While most dimples are spherical in shape, they don’t have to be. Callaway’s HX ball has hexagon-shaped dimples, for example.
Why do golf balls travel unpredictably?
There is real science behind their use. A flat or irregular object moves through the air in an inconsistent, fluctuating manner because of how air flows over it. So golf balls without dimples would travel unpredictably through the air. Essentially, golfers would have little hope controlling a smooth golf ball.
What happens when a ball spins backwards?
When a ball spins backwards, the air pressure underneath it is greater than above it, so the ball rises in the air. Dimples magnify this effect, contributing as much as 50% to the total lift.
How much does a golf ball weigh?
Currently, a golf ball is required to have a mass no more than 1.620 ounces, or 45.93 grams.
How big is a golf ball?
But now balls are required to have a consistent size. According to the rules, the diameter of a golf ball must not be less than 1.680 inches, or 42.67 mm.
What Is the Reason Why Golf Balls Bounce?
Although most golf balls can bounce, the extent of bouncing for each can be different depending on several factors like how they are made, golf ball types, level of compression or spin, and more.
FAQs
To give you a better understanding of golf ball bounce and related issues, I’ve gathered and answered a few questions below. Check it out for details!
Conclusion
Above are some main reasons to explain why golf balls bounce. Hope it has cleared all your confusion.

What Is Bump and Run in Golf?
- A bump and run is a golf shot where the ball is hitwith a downward motion and then rolls along the ground. This type of shot is often used when the ball is on an elevated green or when there is trouble near the green. The main reason why you would use this type of shot is that it allows you to keep the ball low to the ground and then roll towards t...
When Would You Use It?
- There are many benefits to using a bump and run. However, as we mentioned before, the main reason to use this type of shot is that it allows you to keep the ball low to the ground. This can be helpful if you are trying to avoid any obstacles near the green. Additionally, this type of shot can help you control your distance better since the ball will not travel as high into the air. A bump an…
How to Execute The Shot Properly
- Executing a bump and run is a fairly simple process but there are a few key things to keep in mind. 1. First, you will want to use a club that has less loft such as a higher iron or even a wood. 2. Second, don’t overdo your swing! A common mistake is to try and hit the ball too hard which with a lower lofted club will cause the ball to go miles! 3. You want to use your club almost like a putt…
The Benefits of Using Bump and Run
- Once you’ve mastered the bump and run, you’ll start to see many benefits to using this type of shot. Not only is it a great way to keep the ball low to the ground, but it can also help you control your distance and avoid trouble around the greens. The bump and run is great for beginners as it’s a simple and easy shot to execute. However, even experienced golfers can benefit from using th…
Bump and Run vs. Chip Shots
- So why would you use a bump and run over a chip shot? Well, the main reason is that it’s much easier to control your distance with a bump and run. With a chip shot, there is a higher chance of the ball going too far or not far enough. A bump and run gives you more predictability and can be helpful when you are trying to avoid any trouble around the green. Chipping also takes a lot mor…
Practice Makes Perfect!
- As with all things in golf, practice makes perfect! The best way to get better at using a bump and run is to head to the driving range and start hitting some balls. Focus on making smooth, controlled swings and try to keep the ball low to the ground. With enough practice, you’ll be able to execute this shot perfectly!
Wrapping Things Up
- Bump and run is a golf term used when playing from the green. It’s a type of shot that allows you to keep the ball low to the ground and then roll it towards the hole. This can be helpful if you are trying to avoid any obstacles near the green. To execute a bump and run, use a club with less loft, such as a higher iron and focus on a slow, controlled swing. With enough practice, you’ll be able …