Overview
Early extension is when your hips push toward the ball and your body stands up too soon on the way down. It steals the space your arms need, so you have to make last-second adjustments to find the ball.
Go deeper — the advanced explanation
Early extension is a loss of the setup hip hinge in transition — the pelvis thrusts toward the target line and the spine extends early. It crowds the arms, pushes the hands up and out, and commonly produces blocks, hooks, and thin/heavy strike from a moving low point.
Why it matters
It is one of the most common amateur faults and a direct cause of an inconsistent low point and a two-way miss. Holding posture frees the arms and steadies contact.
How SwingVantage detects this
SwingVantage compares your hip/torso position at setup and in the downswing from a down-the-line view and flags the hips moving toward the ball and the torso standing up. This maps to the fault ontology entry "early_extension."
Confidence: Estimated from video
Read from a 2D down-the-line clip, so it is estimated. The right camera angle (true down the line, hip height) is essential for an honest read.
What good looks like — and what doesn't
Good pattern
Hips holding their hinge and rotating (not thrusting toward the ball), keeping space for the arms to drop and deliver on plane.
Common poor patterns
- Hips thrusting toward the ball in transition
- Torso standing up before impact
- Hands getting "stuck" behind the body, forcing a flip
- Belt line moving closer to the ball through the downswing
Causes, what you feel, and the result
Common causes
- Pushing off the ground vertically instead of rotating
- Limited hip mobility or weak rotational pattern
- Starting the downswing with the upper body
- Setup too close to the ball
What you may feel
- You feel "stuck" with no room for your arms
- You flip the hands to save contact
- Lower-back tiredness after sessions
What the result may look like
- Blocks to the right and big hooks (two-way miss)
- Thin and heavy strikes from a moving low point
Check it yourself
Wall test
Set up with your hips lightly touching a wall behind you; make slow downswings keeping your hips back against the wall. If your hips leave the wall early, that is early extension.
Belt-line video
Down the line, watch your belt line — it should not move toward the ball during the downswing.
Video upload tips for an accurate read
- Film true down the line, behind the hands, at hip height.
- Keep the lower body in frame for the whole swing.
Drills
Wall-Behind Hips
intermediateGoal: Hold the hinge in transition
How: Hips lightly against a wall, make slow swings keeping contact with the wall well into the downswing.
Feel: Hips staying back and rotating, not thrusting
Rotate-Don’t-Thrust
advancedGoal: Replace a vertical push with rotation
How: Make swings focusing on turning your lead hip back and around behind you instead of pushing your belt toward the ball.
Feel: Lead hip clearing behind you
Your practice plan
- 1.Day 1–3: Wall-Behind Hips slow swings.
- 2.Day 4–6: Rotate-Don’t-Thrust into soft shots.
- 3.Day 7: Retest down the line and compare hip movement and contact.
Progression ladder (beginner → advanced)
- 1.Feel hips staying back on slow swings
- 2.Keep posture at half speed
- 3.Hold it at full speed
- 4.Own it in play
FAQs
What causes early extension?
Usually pushing off the ground vertically instead of rotating, limited hip mobility, or starting the downswing with the upper body. The hips thrust toward the ball and the torso stands up too soon.
How do I fix early extension fast?
The wall drill is the quickest feedback: keep your hips touching a wall behind you well into the downswing so you learn to rotate instead of thrust. Pair it with posture and rotation work.
Keep going
Related concepts
Related data points
Related swing faults
Explained for these coaching styles
Pick your coaching style in Settings to tailor your reports and drills.
SwingVantage explanations are educational, not medical advice. Video-based reads are labeled by confidence; treat estimated and inferred findings as starting points, not measurements. Last reviewed 2026-06-08.