Tetlow Golf Performance Lab

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🇸🇬 Singapore
🇬🇧 Advanced PGA Professional
🤝 Team OnOff Global
📱 Online Coaching/In-Person Coaching

Specialise: Elite Performance Training, Biomechanics, Fitness & Hitting bombs! 💣🚀

05/08/2026

NEW EQUIPMENT = NEW YARDAGES 🏌🏽‍♂️

ONOFF XCBT series blends Japanese craftsmanship, premium materials and customisable performance. In other words no short cuts or gimmicks. ⚔️

Time to give these weapons a try on the golf course ⛳️

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PGAPro

01/08/2026

UNDER-PLANE w/ LATE ARM LIFT ☠️

A late arm lift in the backswing means the body (pelvis and thorax) rotates significantly before the arms elevate. The hands stay low and behind the body for too long, forcing the arms to “catch up” later in the backswing ❌

Here’s why biomechanically:

🚫 1. Poor Width and Radius

When the arms remain low for too long, the lead arm often gets pulled across the chest rather than elevating.

This:

* Reduces swing radius.
* Narrows the arc.
* Lowers clubhead speed potential.
* Makes centre-face contact less consistent.

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🚫 2. Arms Become “Stuck”

If the torso keeps rotating while the arms lag behind, the trail elbow and hands become trapped behind the rib cage.

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🚫 3. Disrupts Proper Kinematic Sequence

Elite golfers create separation between the thorax and arms.

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🚫 4. Forces a Rushed Transition

If the arms haven’t reached their ideal position at the top, they must elevate rapidly during the transition.

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🚫 5. Increases Shoulder Stress

A delayed lift often requires excessive:

* Trail shoulder internal rotation.
* Horizontal adduction.
* Scapular protraction.

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🚫 6. Reduces Vertical Force Production

When the arms arrive late, golfers often struggle to create enough space for the downswing.

⸻ ⸻ ⸻

✅ What Should Happen Instead?

Ideally:

* The thorax rotation and arm lift occur together.
* The lead arm elevates progressively as the chest turns.
* A checkpoint can be - are your arms going through your trail shoulder or behind??

This allows:

* Better width.
* More efficient sequencing.
* More consistent low point.
* Higher clubhead speed.
* Fewer compensations in transition.

⸻ ⸻ ⸻

PGAPro

Really excited and genuinely proud to be brand ambassador for OnOFF Golf Global.⛳️Having spent many years in golf, I’ve ...
29/07/2026

Really excited and genuinely proud to be brand ambassador for OnOFF Golf Global.⛳️

Having spent many years in golf, I’ve always believed in working with brands that share my passion for performance, precision and quality.

I’m really looking forward to this next chapter with OnOFF and representing the brand both on and off the course.

Thank you to the team for the opportunity — I’m excited to test these weapons out! 🙏🏽🏌🏽‍♂️

05/07/2026

RETRACT THE SCAPS 💪🏽

Retracting your shoulder blades helps create a stronger, more athletic posture by opening up the chest and giving your upper body a stable foundation.

Poor Scapula Structure leads to:
🚫 Reduced thoracic rotation – Rounded shoulders often limit your ability to rotate your upper body, reducing backswing depth and separation between the upper and lower body.
🚫 Poor shoulder mobility – If the shoulder blades don’t move and stabilise properly, the arms struggle to move efficiently, often leading to flying elbow and chicken wing
🚫 Loss of posture – A collapsed upper back makes it harder to maintain posture throughout the swing
🚫 Poor arm structure – The arms tend to work too independently from the torso, reducing swing width and consistency.
🚫 Reduced force transfer – The scapulae act as the link between the torso and the arms. If they’re unstable, energy is lost before it reaches the club, costing clubhead speed.
🚫 Increased injury risk – Poor scapular mechanics can increase stress on the neck, rotator cuff, shoulder joint, elbows, and even the lower back as other areas compensate.

Using the band, learning to stabilise and control the scapular can help:
✅ Improve upper-body rotation.
✅ Make it easier to keep your posture throughout the swing.
✅ Allow your arms and shoulders to move more efficiently.
✅ Transfer energy more effectively from your body into the club.

A stronger scapula structure can lead to a more efficient swing with less risk of injuries—and more speed. ⚡️

———


29/06/2026

IS YOUR DRIVER SWING IS COOKED 🍳 BEFORE YOU EVEN START!? 🚫

One of the most common faults I see is the lead hip sitting LOWER than the trail hip at address.

It might seem harmless… but it can cost you distance, consistency, and even increase your injury risk. 👇

🚫 1️⃣ Encourages a Poor Spine Position

A low lead hip often tilts the pelvis towards the target, making it harder to create the proper spine tilt away from the target.

This can lead to:
❌ Restricted shoulder turn
❌ Poor trail-side loading
❌ Early upper-body movement in transition

➡️ The result? Over-the-top swings, steeper attack angles and less clubhead speed.

⸻

⚡ 2️⃣ Reduces Ground Force Production

Power starts from the ground up.

When the lead hip starts too low, it’s harder to:
❌ Shift pressure efficiently
❌ Create rotational torque
❌ Push vertically through the lead leg

➡️ Less force = Less speed = Less distance.

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🦴 3️⃣ Increases Lower Back Stress

Starting with an uneven pelvis places the lower back in an awkward position before the swing even begins.

As you rotate at high speed, this can increase stress on:
• Lumbar discs
• Facet joints
• QL muscles
• Erector spinae

➡️ Over time, this may contribute to lower back pain.

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🦵 4️⃣ Places More Stress on the Lead Hip

A dropped lead hip can increase compression inside the lead hip during the downswing.

This places more load on:
• Hip labrum
• Glute muscles
• Hip flexors

Golfers with limited hip mobility often compensate by rotating excessively through the lower back instead.

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🦶 5️⃣ Makes It Harder to “Post Up”

Powerful drivers extend into a strong lead leg through impact.

Starting with a low lead hip makes it harder to:
❌ Straighten the lead leg
❌ Raise the lead side
❌ Fully clear the pelvis

➡️ You stay stuck in flexion, lose rotation and place more stress on the knees and lower back.

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✅ A Better Driver Setup

For most golfers:
✔️ Trail hip slightly LOWER than the lead hip
✔️ Trail shoulder lower than the lead shoulder
✔️ Spine tilted slightly away from the target
✔️ Slight pressure favouring the trail foot

This helps you:
✅ Load more efficiently
✅ Create better horizontal, rotational and vertical ground forces
✅ Protect your back and hips
✅ Deliver a more powerful, upward strike with the driver.

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25/06/2026

Great cue for a golfer to combine the correct ground reaction forces and hip mechanics rather than the generic “open your hips”!

Here’s the biomechanical reasons why:

1️⃣ Creates External Rotation of the Lead Hip

Pushing the lead foot towards 11 o’clock creates a rotational force (torque) between the foot and the ground.

Because the foot stays planted through friction with the ground, the force travels up the kinetic chain, causing the femur to externally rotate within the hip socket. This allows the lead hip to rotate back and away from the ball.

Instead of spinning the pelvis with the upper body, you’re using the ground to rotate it.

2️⃣ Generates Rotational Ground Reaction Force

On force plates (such as those from Swing Catalyst), this movement increases rotational (torque) force.

The golfer isn’t literally sliding the foot toward 11 o’clock. They’re applying force in that direction against the ground.

According to Newton’s Third Law:

* You push the ground toward 11 o’clock.
* The ground pushes back with an equal and opposite force.
* That reaction helps rotate the pelvis open.

3️⃣ Improves Force Transfer

The downswing follows a kinetic sequence:

1. Horizontal force (pressure shift).
2. Rotational force (pelvic torque).
3. Vertical force (lead leg extension).

The 11 o’clock push primarily enhances the rotational phase. Once the pelvis accelerates, it then decelerates, allowing energy to transfer efficiently into the thorax, arms, and finally the club.

This is why elite players don’t just spin continuously—the pelvis accelerates, then brakes, helping the club accelerate even more.

4️⃣ Protects the Lower Back

When the lead hip rotates freely around a stable lead leg:

* Hip internal and external rotation absorb much of the rotational demand.
* The lumbar spine doesn’t have to twist excessively.
* Forces are distributed through the glutes and hip musculature rather than the lower back.

Golfers who “hold” the lead hip closed often compensate by rotating excessively through the lumbar spine, which can increase stress over time.

A Simple Analogy

Imagine standing on a towel on a slippery floor. If you try to twist your hips without using your feet, you won’t generate much rotation. But if you grip the floor and try to “screw” your lead foot toward 11 o’clock, the ground pushes back, your femur rotates, and your pelvis clears naturally.

———


20/06/2026

WHAT NOT TO DO W/ DRIVER 🚫

For all the banana 🍌 slicers out there….

Why is the Trail Shoulder movement important?

1️⃣ Helps Deliver the Club from the Inside

When the trail shoulder moves down, it allows the hands and club to shallow naturally.

If the shoulder moves outwards (towards the golf ball), the club tends to get thrown over the plane, leading to:

* Over-the-top swings
* Pulls
* Slices
* Heel strikes

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2️⃣ Maintains Forward Bend

Moving the trail shoulder downward helps preserve your spine inclination.

When it moves outward:

* The chest stands up early (early extension).
* The pelvis often moves toward the ball.
* The handle gets forced upward.
* Contact becomes inconsistent.

Keeping the shoulder moving down lets you stay in posture for longer.

⸻

3️⃣ Improves Angle of Attack

Many golfers think hitting up on the driver means lifting the shoulders.

In reality:

* The lead shoulder works up and back.
* The trail shoulder works down and through.

This combination tilts the spine away from the target while allowing the club to still approach on an upward angle.

If both shoulders move out towards the ball, you’ll often:

* Hit down on the driver.
* Increase spin.
* Lose distance.

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Trail Shoulder Goes Down:
✅ Shallows the club
✅ Inside delivery
✅ Maintains posture
✅ Better rotation
✅ Higher ball speed
✅ Consistent strike

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14/06/2026

HOW THE TRAIL ARM IS REALLY SUPPOSED TO MOVE…..💪🏽

Trail shoulder flexion is the movement of the trail arm (right arm for a right-handed golfer) lifting in front of the body during the backswing.

✅ Benefits of proper trail shoulder flexion:

* Helps keep the arms connected to the torso.
* Promotes a more efficient swing plane.
* Allows the club to set naturally without excessive hand manipulation.
* Improves shoulder turn and backswing depth.
* Creates a better position to sequence the downswing.

❌ Too little flexion:

* Arms can get trapped behind the body.
* Club may become too flat or stuck.
* Often leads to compensations in transition.

❌ Too much flexion:

* Arms can lift excessively.
* Club becomes too steep.
* May reduce rotational depth and consistency.

Simple feel:
“As your chest turns away from the target, let your trail arm fold and lift naturally in front of your ribcage rather than behind you.”


09/06/2026

SPEED DRILL – STICK IT IN REVERSE ⚙️

Most golfers focus on creating speed… but the real secret is learning how to decelerate and slam on the brakes.

Generating speed is only half the equation. If your body can’t slow down efficiently, you’ll lose potential clubhead speed and place more stress on your body, increasing injury risk. 🤕

Think of it this way:

🏎️ A McLaren W1 with Ford Fiesta brakes.

It might have incredible power, but without the ability to stop efficiently, that power can’t be fully used.

The golf swing relies on proximal-to-distal sequencing (the kinematic sequence). Larger body segments accelerate first, then rapidly decelerate, transferring energy to the next segment in the chain.

Legs ➡️ Pelvis ➡️ Torso ➡️ Arms ➡️ Club

Why Is Deceleration So Important?

🚀 1. More Clubhead Speed

Think of cracking a whip.

Each segment slows down so the next segment can speed up. The better the braking, the more energy gets passed down the chain, resulting in higher clubhead speed.

🤕 2. Reduced Stress & Injury Risk

Many golfers try to hit it farther by simply rotating harder and harder.

Efficient players create speed through:

✅ Force Production
✅ Force Transfer
✅ Deceleration

When energy transfers properly, there’s less need to “muscle” the club through impact, reducing unnecessary stress on the body.

What We Typically See on Swing Catalyst Force Plates

1️⃣ Horizontal Force (Glide) → Pressure shifts toward the target.
2️⃣ Rotational Force (Torque) → Pelvis accelerates open.
3️⃣ Vertical Force (Launch) → Lead leg pushes upward.
4️⃣ Lead-Side Braking → Pelvis rapidly decelerates.
5️⃣ Energy Transfer → Torso ➡️ Arms ➡️ Club.

The biggest mistake?

Many golfers focus on the first three forces but completely overlook the braking phase.

Without efficient deceleration, it’s difficult to fully convert force into speed. 🔥🏌🏽‍♂️


06/06/2026

BASICS FORCES IF YOU WANT TO HIT THE BALL LONGER! 🚀

A poor Kinetic Force Sequence can easily lead to:
- Severe Power Loss
- Poor Contact
- Injuries

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HERE IS A BREAKDOWN OF EACH ⬇️

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1️⃣ Horizontal Force (Glide)

This is the 1st force that appears in transition. This creates a horizontal shear force between the feet and the ground

The purpose is not to slide excessively, but to:
* Shift pressure into the lead side
* Move the centre of mass forward
* Create momentum that can later be converted into rotation

Good players typically begin generating horizontal force before the club has completed the backswing (re-centre).

What happens if horizontal force is missing?
* Hanging back
* Early extension
* Poor low-point control
* Loss of speed potential

What happens if there’s too much?
* Excessive lateral slide
* Difficulty rotating
* Blocks and hooks
* Inconsistent strike

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2️⃣ Rotational Force (Torque)

Once pressure is established in the lead side, the golfer begins converting the linear motion into rotation.

This is where the body starts “opening.”

This is the foundation of the kinematic sequence.

Why torque matters?

The best players don’t actively spin their hips.

Instead:
* They push against the ground
* Ground reaction forces create torque
* Torque rotates the pelvis

This is much more powerful and repeatable than consciously turning the hips.

Common faults

Too little torque

* Arms dominate downswing
* Over-the-top patterns
* Loss of speed

Too much too early

* Pelvis outruns upper body
* Club gets stuck behind
* Timing issues

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3️⃣ Vertical Force (Launch)

Once horizontal force has shifted pressure and torque has accelerated rotation, the golfer begins pushing vertically into the ground.

This is the final force in the sequence.

For a right-handed golfer:
* Lead leg extends
* Trail leg extends
* Pelvis rises and rotates

On Swing Catalyst this appears as:

Force – Vertical

Often called the “launch” phase.

Purpose of vertical force

Vertical force:
* Increases angular velocity
* Helps maintain posture
* Creates space for the arms
* Maximizes clubhead speed

This is why long hitters often look like they’re “jumping” through impact.

They’re not jumping for the sake of jumping.

They’re pushing hard into the ground to create an upward reaction force.

Common faults

Insufficient vertical force:
* Flat rotation
* Limited speed
* Stalled hips

Vertical force too early:
* Early extension
* Loss of posture
* Thin and topped shots

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This is why many elite players show a force-plate sequence that peaks roughly:

Horizontal → Torque → Vertical

while their body segments peak:

Pelvis → Torso → Arms → Club

The force sequence is essentially the engine that drives the kinematic sequence. Without efficient ground-force sequencing, it’s very difficult to achieve a powerful and repeatable downswing.

⸻


Address

MST @ City Square Mall
Singapore
208539

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