DRVN Studios

To assess a golfer's downswing potential, we need to understand how well they can separate rotation while staying stable.

That's the purpose of the Split Stance Rotation.

This test isolates one of the most important — and most misunderstood — elements of the golf swing: the ability for the lower body and upper body to be moving in different directions at the same time whilst retaining connection as part of the kinematic sequence. It's the foundation of sequencing, power delivery, and consistent impact.

If a golfer cannot manage this separation in a controlled environment, they won't be able to reproduce it at speed in the swing.

What the Split Stance Rotation Assesses

This assessment looks at four related but distinct qualities.

First, rotational range of motion, tested both internally and externally on each side of the body.

Second, movement control — the ability to rotate without compensating through the hips, spine, or center of gravity.

Third, hip stability, particularly through the lead leg, which must resist movement as rotation occurs above it.

And finally, asymmetry, which often reveals why a golfer feels powerful in one direction and restricted in another.

Together, these factors tell you how well the body can create the separation required for an efficient downswing.

Why This Matters for the Golf Swing

In the downswing, the lower body must lead while the upper body follows.

The hips leverage the lower body to push into the ground.
The torso rotates over a stable base.
Force is transferred upward and into the club.

The split stance rotation allows us to isolate and test that exact relationship — without speed, without timing demands, and without technical noise.

If a golfer loses balance or hip stability here, they will lose it in the swing as well.

Setting Up the Test

The golfer stands in a split stance:

front foot flat and grounded,
back foot on the toes,
stance long enough to feel stable but athletic.

A golf club is held at arm's length in front of the chest. From this position, the golfer rotates the upper body while the lower body remains quiet.

Both sides of the body are tested, and both internal and external rotation are assessed.

What you're watching for is simple:

Can they stay centered?
Can the hips remain stable?
Can rotation occur cleanly around the spine?

Scoring the Split Stance Rotation

Scoring progresses by increasing range of motion while maintaining control and stability.

Score	What You'll See
1	Able to stabilize in split stance on both sides without losing balance
2	Reaches 45° of rotation in two of the four rotational directions
3	Reaches 45° of rotation in all four directions with good control
4	Reaches 90° of rotation in two of the four directions while staying stable
5	Reaches 90° of rotation in all four directions effortlessly and with control

Range alone is not enough. Stability must be present at every level.

Understanding Restrictions and Asymmetries

Many golfers will show clean rotation in one direction and restriction in another. That information matters.

It tells you:

which side struggles to stabilize,
where mobility limits sequencing,
and why certain swing patterns repeat under pressure.

A golfer who can rotate but cannot stabilize will leak power. A golfer who stabilizes but cannot rotate will feel stuck. This test shows you which problem you're dealing with.

Using the Results

The split stance rotation gives you direct insight into:

downswing sequencing potential,
hip stability under rotational demand,
and readiness to generate force without compensation.

Then guide training accordingly:

If rotation is limited, thoracic mobility becomes a priority.
If stability breaks down, lower-body control must be addressed.
If asymmetries appear, unilateral and asymmetrical work becomes essential.

Each adjustment brings the golfer closer to a body that can rotate powerfully and predictably.

Closing Thought

The downswing isn't powered by effort alone. It's powered by separation, stability, and control.

The split stance rotation shows you whether those qualities are present — and whether the body is prepared to deliver force into impact without falling apart.