Instruction
What is ground force in the golf swing?
There is no doubt about it, the guys and gals on tour have found something in the ground—and that something is power and speed. I’m sure by now you have heard of “ground reaction forces”—and I’m not talking about how you “shift your weight” during the golf swing.
Ground force in the golf swing: Pressure and force are not equal
With respect to ground force in the golf swing, it’s important to understand the difference between pressure and force. Pressure is your perception of how your weight is being balanced by the structure, in this case, the human body. Your body has a center of mass which is located roughly one inch behind the belt buckle for men and about one inch lower in women. When we shift (translate and/or torque) the center of mass, we create a pressure shift as the body has to “rebalance” the mass or body. This pressure shift can help us understand some aspects of the golf swing, but when it comes to producing power, force and torque are where it’s at.
Pressure can only be expressed in relation to the mass or weight of the body. Therefore, if you weigh 150 pounds, you can only create 150 pounds of pressure at one time. However, when we direct that mass at a larger object than our mass, all of a sudden that larger mass directs an opposite and equal reactionary force. So now, when a human being “pushes” their legs against the ground and “feels” 150 pounds of pressure, they now get 150 pounds of force directed back towards them from the ground, creating a total of 300 pounds of force that allows them to jump off the ground in this scenario.
If ground reaction forces don’t have anything to do with the “weight shift,” then what do they affect? Everything!
Most people use the same basic ingredients to make chocolate chip cookies. However, almost everyone has chocolate chip cookies that taste slightly different. Why is that? That is because people are variable and use the ingredients in different amounts and orders. When we create a golf swing, whether we are aware of it or not, we are using the same basic ingredients as everyone else: lateral force, vertical torque, and vertical force. We use these same three forces every time we move in space, and how much and when we use each force changes the outcome quite a bit.
Welcome to the world of 3D!
Understanding how to adjust the sequencing and magnitude of these forces is critical when it comes to truly owning and understand your golf swing. The good news is that most of our adjustments come before the swing and have to do with how we set up to the ball. For example, if an athlete is having a hard time controlling low point due to having too much lateral force in the golf swing (fats and thins), then we narrow up the stance width to reduce the amount of lateral force that can be produced in the swing. If an athlete is late with their vertical force, then we can square up the lead foot to promote the lead leg straightening sooner and causing the vertical force to happen sooner.
While we all will need to use the ground differently to play our best golf, two things need to happen to use the ground effectively. The forces have to exist in the correct kinetic sequence (lateral, vertical torque, vertical force), and the peaks of those forces need to be created within the correct windows (sequencing).
- Lateral force – Peak occurs between top-of-swing and lead arm at 45 degrees
- Vertical torque – Peak occurs between lead arm being 45 degrees and the lead arm being parallel to the ground.
- Vertical force – Peak occurs between lead arm being parallel to the ground the club shaft being parallel to the ground.
While it may seem obvious, it’s important to remember ground reaction forces are invisible and can only be measured using force plates. With that said, their tends to be apprehension about discussing how we use the ground as most people do not have access to 3D dual force plates. However, using the screening process designed by Mike Adams, Terry Rowles, and the BioSwing Dynamics team, we can determine what the primary forces used for power production are and can align the body in a way to where the athlete can access his/her full potential and deliver the club to the ball in the most effective and efficient way based off their predispositions and anatomy.
In addition to gaining speed, we can help athletes create a better motion for their anatomy. As golfers continue to swing faster, it is imperative that they do so in a manner that doesn’t break down their body and cause injury. If the body is moving how it is designed, and the forces acting on the joints of the body are in the correct sequence and magnitude, not only do we know they are getting the most out of their swing, but we know that it will hold up and not cause an unforeseen injury down the road.
I truly believe that force plates and ground reaction forces will be as common as launch monitors in the near future. Essentially, a launch monitor measures the effect and the force plates measure the cause, so I believe we need both for the full picture. The force plate technology is still very expensive, and there is an educational barrier for people seeking to start measuring ground reaction forces and understanding how to change forces, magnitudes, and sequences, but I’m expecting a paradigm shift soon.
Instruction
How to play your best golf when the temperature drops
The LPGA Tour is kicking off its 2026 season this week at Lake Nona Golf and Country Club in Orlando, and the pros are dealing with something most Florida golfers rarely face: freezing temperatures.
“It’s colder here than in the UK at the minute, which is a first,” said England’s Charley Hull during Wednesday’s media day at the Hilton Grand Vacations Tournament of Champions.
Even Lydia Ko, who lives at Lake Nona, seemed surprised by the cold snap. “We’re pretty much getting to below zero in celsius here, which maybe in other parts of the country they would be thankful, but when you’re in Florida it is a little bit of a surprise,” she said.
If the world’s best players are adjusting their games for cold weather, recreational golfers should, too. Here’s how to play smart when the mercury drops.
Understand What Cold Does to Your Game
Before you change anything, you need to know what you’re fighting against. Cold air is denser than warm air, which means your ball won’t fly as far. Period.
Hull noticed this immediately during practice rounds at Lake Nona. She mentioned hitting a gap wedge into the 18th hole during a previous win but needing a 4-iron during Tuesday’s practice round. That’s a difference of four or five clubs for the same shot.
Action item: Expect to lose 5-10 yards on every club in your bag when temperatures dip below 50 degrees. Plan accordingly and don’t be stubborn about club selection.
Layer Up Without Restricting Your Swing
Hull admitted she wore three pairs of pants during practice. While that might be extreme for most of us, staying warm is critical to playing well in cold conditions.
Your muscles need warmth to function properly. When you’re cold, your body tightens up and your swing gets shorter and faster. Neither of those things help you hit good golf shots.
Action item: Wear multiple thin layers instead of one bulky jacket. Look for golf-specific cold weather gear that stretches with your swing. Keep hand warmers in your pockets between shots. And don’t forget a good hat because you lose significant body heat through your head.
Take More Club Than You Think You Need
This is where ego gets in the way of good scores. When it’s cold, the ball doesn’t compress as well off the clubface. Combined with denser air, you’re looking at serious distance loss.
The pros at Lake Nona are dealing with a course that measures 6,642 yards but plays much longer this week. If they’re adjusting, you should too.
Action item: Take at least one extra club on every approach shot. In temperatures below 40 degrees, consider taking two extra clubs. It’s better to fly the ball to the back of the green than to come up short in a bunker.
Adjust Your Expectations on the Greens
Cold weather affects putting in ways most golfers don’t consider. The ball is harder and doesn’t roll as smoothly. Your hands are cold, making it harder to feel the putter. And if there’s any moisture on the greens, they’ll be slower than normal.
Ko mentioned that she still sometimes reads the greens wrong at Lake Nona despite being a member for years. Cold weather makes that challenge even tougher.
Action item: Hit putts more firmly than usual. The ball needs extra speed to hold its line on cold greens. Take a few extra practice strokes to get a feel for the speed before you putt.
Embrace the Mental Challenge
Hull said something interesting about cold weather golf: “I like the mental toughness of it.”
That’s the right attitude. Everyone on the course is dealing with the same conditions. The player who stays patient and doesn’t get frustrated by the extra difficulty will come out ahead.
Action item: Lower your expectations by a few strokes. If you normally shoot 85, accept that 90 might be a good score in 40-degree weather. Focus on solid contact and smart decisions rather than perfect shots.
Warm Up Longer and Smarter
This might be the most important tip of all. Cold muscles are tight muscles, and tight muscles get injured easily.
World No. 1 Jeeno Thitikul revealed she’s been protecting a wrist injury that bothered her late last season. Cold weather makes those kinds of injuries more likely if you don’t prepare properly.
Action item: Spend at least 20 minutes warming up before your round. Start with stretching, then hit easy wedge shots before working up to your driver. Keep moving between shots on the course to maintain body heat and flexibility.
The pros at Lake Nona this week will adapt and compete at the highest level despite the cold. You can do the same at your local course by following these tips and keeping a positive attitude.
PGA Professional Brendon Elliott is an award-winning coach and golf writer. You can check out his writing work and learn more about him by visiting BEAGOLFER.golf and OneMoreRollGolf.com. Also, check out “Playing Through” now on R.org, RG.org’s partner site, each Monday.
Editor’s note: Brendon shares his nearly 30 years of experience in the game with GolfWRX readers through his ongoing tip series. He looks forward to providing valuable insights and advice to help golfers improve their game. Stay tuned for more tips!
Instruction
3 lessons from Brooks Koepka that’ll actually lower your score
Brooks Koepka is back on the PGA Tour, and whether you love him or hate him, the guy knows how to win when it matters. After his LIV Golf stint, the five-time major champion returns this week at the Farmers Insurance Open.
What makes Koepka fascinating? He doesn’t fit the mold. His swing isn’t textbook. He doesn’t obsess over mechanics. Yet he’s won three PGA Championships and two U.S. Opens, regularly making it look easier than guys with prettier swings.
So, what can average golfers learn from someone who treats the game so differently? Quite a bit.
Stop Overthinking Every Shot
Koepka describes his approach as “reactionary” rather than mechanical. While most tour pros grind over swing thoughts, Brooks sees the target and hits it. No mental checklist.
This might be the most valuable lesson for weekend golfers who’ve watched too many YouTube swing videos.
How to actually do this:
On the range, hit five balls where you stare at the target for three seconds prior to addressing the ball. Don’t think about grip or stance. Just burn that target into your brain. You’ll be shocked at how pure you hit it when your brain focuses on where the ball is going instead of how you’re swinging.
Next time you play, give yourself a rule: Once you pull the club, you’ve got 15 seconds to hit. Koepka is one of the fastest players on tour because he doesn’t give his brain time to sabotage him.
If you feel tension in your hands at address, you’re trying to control too much. Koepka’s grip pressure is famously light. Loosen up until the club almost feels like it might slip, then add just enough pressure to hold on. That’s your swing thought: soft hands, see the target.
This approach works better under pressure. When you’re standing over that shot with water left and OB right, the last thing you need is a mental checklist. See it, feel it, hit it.
Play to Your Strengths (Even If They’re Not Pretty)
Koepka uses a strong grip that wouldn’t pass muster in some teaching circles. But he’s built his game around what works for him, elite driving distance and recovery skills. He doesn’t try to be someone he’s not.
Here’s how to build your game like Brooks:
Look at your last five rounds and figure out where you’re actually gaining strokes. Bombing it off the tee, but can’t hit greens? Lean into it. Play courses where distance matters more than precision. On tight holes, grip down on your 3-wood instead of trying to thread a driver through a keyhole you’ll miss seven times out of ten.
Koepka knows he can scramble, so he’s not afraid to miss greens. If you’re deadly from 50 to 75 yards, start leaving yourself those distances on the par 5’s instead of going for them in two every time.
Know when to take your medicine. Koepka in the trees at the PGA? He’s punching out to 100 yards, not trying to bend a 6-iron around three oaks. You’re in the rough with a flyer lie and water short? Hit your 8-iron to the middle and move on. That’s not playing scared, that’s playing smart.
Save Your Best for When It Counts
Here’s a wild stat: Koepka’s putting average in majors is often more than a full stroke better per round than in regular events. He elevates when pressure is highest.
How does an amateur tap into that gear? It’s not about trying harder, it’s about caring differently.
Here’s what actually works:
Decide which rounds matter to you. Club championship? Member-guest? That annual trip with college buddies? Circle those dates and treat them differently. Koepka doesn’t care much about regular tour events, but majors? That’s when he locks in.
Two weeks before your big round, change your practice. Stop beating balls mindlessly. Play nine holes in which every shot has consequences. Miss the fairway? Hit from the rough on the next hole too. Three-putt? Twenty push-ups. Koepka’s practice intensity ramps up before majors because he’s rehearsing pressure, not just swings.
Develop a between-shot routine that resets your brain. Koepka is famous for his blank expression after bad shots. Try this: After any shot, take three deep breaths while walking, then find something specific to notice, a tree, a cloud, someone’s shirt. That’s your reset button. By the time you reach your ball, the last shot is gone.
The Bottom Line
Brooks Koepka’s return reminds us there’s no single path to success in golf. His “substance over style” approach proves that results matter more than looking good.
You don’t need a perfect swing; you need a reliable one that holds up under pressure. You don’t need to hit every shot in the book; you need the shots you can count on. And you don’t need to play great every time; you need to play great when it matters.
Welcome back, Brooks. Thanks for the reminder that golf is ultimately about getting the ball in the hole, not winning style points.
PGA Professional Brendon Elliott is an award-winning coach and golf writer. You can check out his writing work and learn more about him by visiting BEAGOLFER.golf and OneMoreRollGolf.com. Also, check out “Playing Through” now on R.org, RG.org’s partner site, each Monday.
Editor’s note: Brendon shares his nearly 30 years of experience in the game with GolfWRX readers through his ongoing tip series. He looks forward to providing valuable insights and advice to help golfers improve their game. Stay tuned for more tips!
Instruction
What we can learn from Blades Brown’s impressive American Express performance
Blades Brown made a big impression last week in the California desert, and not just because he’s only 18. He put up numbers that would catch any weekend golfer’s attention. Most of us won’t hit 317-yard drives or find 86% of our greens in regulation, but there’s a lot to learn from how Brown managed his game at The American Express.
Here are three practical lessons from his performance that you can use on your own course this weekend.
Step 1: Give Priority to Accuracy Over Distance Off The Tee
Brown’s driving stats are impressive. He averaged almost 318 yards off the tee, ranking 12th in the field. More importantly, he hit 76.79% of his fairways, tying for fourth place in the tournament.
Think about that ratio for a second. Brown could have swung harder, chased more distance and tried to overpower the course. Instead, he played smart golf and kept his ball in play.
Your Action Item: Next time you’re on the tee box, ask yourself a simple question before pulling the driver. Do you need maximum distance here, or do you need to be in the fairway? If there’s trouble lurking or the hole doesn’t demand every yard you can muster, take something off your swing. Grip down an inch. Make a three-quarter swing. Do whatever it takes to find the short grass. Brown’s approach illustrates that fairways lead to greens, and greens lead to birdies. He made 22 of them last week, along with an eagle.
The math is simple. When you’re hitting three out of every four fairways like Brown did, you’re giving yourself legitimate looks at the green with your approach shots. That’s when scoring happens.
Step 2: Commit To Hitting More Greens
This is where Brown really separated himself. He hit 62 of 72 greens in regulation, an 86.11% clip that tied for first in the entire field. Read that again. An 18-year-old kid tied for the lead in one of the most important ball-striking statistics in professional golf.
How did he do it? By keeping his ball in the fairway (see Step 1) and giving himself clean looks with mid-irons and wedges.
Your Action Item: Start tracking your greens in regulation. You don’t need a fancy app or a statistics degree. Just mark down whether you hit the green in the regulation number of strokes. Par 3s in one shot. Par 4s in two shots. Par 5s in three shots.
Once you know your baseline, set a goal to improve it by 10%. If you’re currently hitting five greens per round, aim for six. The beauty of this approach is that it forces you to think strategically about club selection and shot shape. Brown’s strokes gained approach number was positive (0.179), meaning he was better than the field average. You don’t need to be perfect. You just need to be on the dance floor more often.
When you hit more greens, you eliminate the need for heroic short game shots. Brown only had to scramble 10 times all week, and he got up and down 70% of the time. That’s solid, but the real story is that he rarely put himself in scrambling situations to begin with.
Step 3: Minimize Mistakes And Stay Patient
Here’s the stat that jumps off the page: Brown made only three bogeys all week. Three. In four rounds of professional golf against the best players in the world.
He also made just one double bogey. That kind of clean card doesn’t happen by accident. It happens when you play within yourself, avoid the big miss and trust that pars are never bad scores.
Your Action Item: Before your next round, decide that you’re going to play boring golf. No hero shots over water. No driver on tight holes just because you can. No aggressive pins when there’s a safe side of the green.
Brown’s performance shows us that consistency beats flash every single time. He didn’t lead the field in any single strokes gained category, but he was solid across the board. That’s how you post numbers and cash checks.
Give these three steps a try. Your scorecard will thank you.
PGA Professional Brendon Elliott is an award-winning coach and golf writer. You can check out his writing work and learn more about him by visiting BEAGOLFER.golf and OneMoreRollGolf.com. Also, check out “The Starter” now on R.org, RG.org’s partner site, each Monday.
Editor’s note: Brendon shares his nearly 30 years of experience in the game with GolfWRX readers through his ongoing tip series. He looks forward to providing valuable insights and advice to help golfers improve their game. Stay tuned for more tips!
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geohogan
Mar 28, 2021 at 2:44 pm
Clubhead speed comes from momentum created by a pivot and COAM, (conservation of angular momentum)
As Frank stated above, attempting to create speed from the lower body will only result in injury to knees and the spine. Byron Nelson and the other great swingers, used the lower body(flexed knees) to support their pivot and maintain balance, not to create force.
Greg McNeill
Mar 8, 2021 at 1:28 pm
I’ve always found this explanation to be helpful: https://www.youtube.com/watch?v=qQVFhqAKcMg
geohogan
Mar 7, 2021 at 10:52 am
https://en.wikipedia.org/wiki/Ground_reaction_force
Our movements(golf swing) are dependent upon Newtons Laws, always have been.
Head Spinning
Mar 7, 2021 at 7:38 am
Michael, nothing Michael personal. But Michael can you Michael redo your Michael bio and not Michael talk about Michael yourself in Michael the third Michael person?
Robert Johansson
Mar 7, 2021 at 6:37 am
Only one guy understand the golf swing in the world
Soon you will to once my stuff is out there
Frank
Mar 7, 2021 at 11:47 pm
Ground force training AKA back and knee surgery at 40. You think Byron Nelson knees flexing well into his followthrough created much ground force? Probably not but it sure helped him get 68.33 scoring average with a 67.65 final round average, the latter which is still a record today. All this knee straightening that Rory and Justin Thomas do to get more ground force and distance is so bad for the body…
Johnny Rocket
Mar 7, 2021 at 4:19 am
Is this a joke?
Mianni Gagliocco
Mar 7, 2021 at 1:17 am
And here I thought ground force was how high my ball bounced off the concrete in the parking lot on a wayward chip.
Bud
Mar 6, 2021 at 10:06 pm
Huh?
The Dudeness Dude
Mar 6, 2021 at 8:48 pm
Average Person: Golf is so complicated !!!
Michael Dutro: Hold my beer, you ain’t seen NOTHING yet!!!
Ferry Bueller
Mar 6, 2021 at 8:50 pm
The one “like” is from Michael and the two “Legits” must be from friends and family members !!!
Livininparadise
Mar 9, 2021 at 2:25 pm
I hope thar everyone that I play with tries this. I will be buying a bunch of bitcoin by midway through the season. This is not a great explanation and even worse advice.