You early extend when your hips push toward the ball in the downswing and you stand up before impact. To fix early extension, keep your forward bend from address through the strike: in our test clips, the tour pros kept theirs within 5 degrees, while an 18 handicap lost 9.
You have plenty of company. TPI reports early extension in 67% of the more than 90,000 golfers it has screened, and says 99% of the 100-plus PGA, European and LPGA Tour players it tested don't have it (TPI on early extension).
It matters because early extension pulls your arms out of their lane. Your hips fill the space your hands need, your arms jam behind you, and you save the shot with your hands: a block right on one swing, a hook left on the next.
See early extension from down the line
Set your phone behind the ball on your target line, looking toward the target. The filming guide shows the exact setup. At address, picture a vertical line touching your seat, and note how far your chest tilts over the ball.
In a good swing, your seat stays on that line through impact and your chest stays tilted over the ball. When you early extend, three things change:
- Your belt buckle moves toward the ball and your seat leaves the line.
- Your forward bend shrinks, so your head and chest rise.
- Your arms run out of room and feel stuck behind you.
TPI defines early extension as any thrust of your lower body toward the ball in the downswing. It says the move traps your arms and the club behind your body and forces your torso up through the hitting zone (TPI's early extension page). That's the stuck, trapped feeling you know from your worst range sessions.
Know how much forward bend you can lose
Forward bend is the tilt of your spine toward the ball. You measure it in degrees at address, then check how much of it you give back by the top and by impact.
| Down the line | Fault line | What it means |
|---|---|---|
| Top of the backswing | You lose more than 8 degrees | You stand up |
| Impact | You lose more than 7 degrees | You early extend |
| Impact | Your seat moves more than 2.5 in toward the ball and you lose 3 degrees or more | You early extend |
Here's how real swings compare in our test clips:
| Golfer | Forward bend they lost through impact |
|---|---|
| Tour pros and a skilled amateur | 5 degrees or less |
| 18 handicap | 9 degrees |
| Night range amateur | 16.5 degrees |
The seat rule catches a quiet version of the fault. You can keep your chest down, lose only 3 or 4 degrees, and still slide your hips 3 inches toward the ball. Your arms lose the same room either way.
Hold your angle the same way on every swing. A 2023 study filmed 27 golfers of all levels with one camera behind the ball on the target line. The average tilt angle showed no link with skill, while the better scorers held their tilt steadier within each swing and repeated it from swing to swing (Yamamoto and colleagues, 2023).
Trace your thin, fat and blocked shots to your hips
When your hips move toward the ball, the damage shows up in four misses. For a right-handed golfer:
- Thin: you stand up, the bottom of your swing rises with you, and the leading edge meets the middle of the ball.
- Fat: you sense the club coming in high and throw it at the ground with your hands, so it reaches the turf first. The fat shots guide covers that miss on its own.
- Block: your hips fill the space your arms need, your arms jam behind you, your body stops turning, and the face stays open. The ball starts right.
- Hook: you rescue the block with your hands, flip the face shut, and the ball curves hard left.
TPI names the block right and the hook left as the two typical early extension misses, and a miss on each side leaves you nowhere safe to aim. TPI adds fat and thin shots in your short game, and even the shank.
In Scratchmaxx, early extension sits at the top of the fault list, level with hanging back and flipping your hands. When your clip shows several faults, you start with the one fix that costs you the most, with a drill for it.
Test your body before you blame your swing
Early extension often starts in your body. TPI links it to four limits: a deep squat or full hip bend you can't complete, hips that can't rotate around your lead leg, a trunk that can't turn apart from your pelvis, and weak glutes and abs that let your pelvis thrust toward the ball.
Research backs part of that. A 2014 study screened 36 golfers with an average handicap of 14.2 and filmed four 5-iron shots from each. A failed toe touch went with early hip extension, and golfers who couldn't do the overhead deep squat or balance on the left leg were 2 to 3 times more likely to show early hip extension, a loss of posture or a slide (Gulgin and colleagues, 2014).
Run TPI's overhead deep squat test at home:
- Stand with your feet shoulder width apart and your toes pointing straight ahead.
- Hold a club with your hands about shoulder width apart and press it straight overhead, in line with your head.
- Squat as deep as you can while you keep the club high above your head.
- Stop if you feel pain, your heels lift, the club tips forward or you lose your balance.
If you can't reach a full squat with your heels down, TPI says you'll find it almost impossible to hold your posture in the downswing, and it usually traces that to tight calves or a weak core. If you reach a full squat with your arms crossed on your chest but not with the club overhead, your mid back and shoulders hold you back (TPI's squat test). If any of it hurts, stop and see a physio or a TPI certified expert.
Groove your posture with three drills
Work through these in order. The first gives you the feel without a club, the second adds a ball, and the third sets your hinge at address.
Drill 1: Keep your seat on the wall
- Stand a shoe length from a wall, facing away from it, and push your hips back into your golf posture until your seat touches the wall.
- Cross your arms on your chest and turn to the top. Keep your trail glute on the wall.
- Turn through to where impact would be, and move your lead glute back to the wall as your hips open.
- Make 10 slow turns, then 10 at speed. If your seat leaves the wall on the way down, you just felt early extension.
Drill 2: Hit with a chair behind you
- Set a chair or your golf bag behind you so it touches your seat at address.
- Hit half shots with a 9 iron. Keep your seat on the chair until the ball has left.
- If you push off the chair, stop and rehearse two slow swings with your seat on it, then hit again.
- Hit 10 half shots, then 10 three-quarter shots.
Drill 3: Rehearse your hinge
- Hold a club along your spine so it touches the back of your head, the middle of your back and your tailbone.
- Push your hips back and tilt forward from your hip joints until your chest sits over the ball. Keep all three contact points and soften your knees.
- Turn to the top and back through to impact, and keep the club on all three points.
- Set the club down, hit one ball with the same tilt, and repeat the pair five times.
Track your bend down the line
Record five swings down the line before you start the drills, with your phone in the same spot each time. For each one, note the degrees of forward bend you lose at the top and at impact, and how far your seat moves toward the ball.
Your first targets: lose no more than 8 degrees by the top and no more than 7 by impact, and keep your seat travel under 2.5 inches. Then chase the tour range of 5 degrees or less.
Watch the spread as well. If one swing loses 4 degrees and the next loses 12, keep drilling until your five swings sit close together. That steadiness marked the better scorers in the 2023 study.
After a week of drills, record five more and compare. Then check face on for the two other big hip faults: a sway in your backswing and hanging back at impact.
In Scratchmaxx, you record or import the clip and see the degrees of forward bend you kept at the top and at impact, plus your seat travel in inches. Your height sets the scale for those inches. Keep one swing per clip, so your numbers come from the swing you meant to check.
