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How to Analyze Your Tennis Swing

Professional tennis players review match and practice footage constantly. They look at racket preparation, contact point, body rotation, and recovery. You can do the same thing with nothing more than a phone and a tripod. Here's how to film, what to look for, and how to turn video into actionable improvement.

How to Film Your Tennis for Analysis

Bad footage leads to bad analysis. Get this right and everything else becomes easier.

• Camera height: Waist to chest height (3-4 feet). Too high and you lose footwork detail. Too low and the body overlaps.
• Distance: 3-5 meters away from the player. Close enough to see joint angles, far enough to capture the full swing arc.
• Angle: Side view (perpendicular to the baseline) is the most informative for stroke analysis. Behind-the-baseline works for serve and ball trajectory but you lose body rotation detail.
• Frame rate: 60fps if your phone supports it. Slow-motion is invaluable for seeing contact point and racket face angle. Regular 30fps works too.
• Full body visible: Make sure your feet, racket, and head are all in frame throughout the entire swing. Cropped feet or a cut-off racket makes analysis incomplete.

What to Look For: The 6 Checkpoints

When reviewing your footage, pause at these six moments in every stroke:

1. Ready Position

Before the ball is hit to you. Are your knees bent? Weight on the balls of your feet? Racket in front? Most recreational players stand too upright between shots, which delays their reaction time by 200-300ms.

2. Unit Turn (Preparation)

The moment you recognize the ball is coming. Your shoulders and hips should rotate together as a single unit. The racket goes back because your body turns, not because your arm pulls it back. If your arm moves independently of your torso, that's an arm-only swing — the most common source of inconsistency and shoulder strain.

3. Loading (Weight Transfer)

Just before you start the forward swing. Weight should be loaded on your back foot (or back hip in open stance). Look at your knees — is the back knee bent? Is your body coiled? The more you load, the more energy you can transfer into the ball.

4. Contact Point

The moment the ball meets the strings. This is the most important frame. Check: Is the ball in front of your lead hip? Is your arm slightly bent (not locked straight, not too bent)? Is the racket face roughly perpendicular to the court for a flat/topspin shot? Late contact (ball beside or behind you) is the #1 cause of mis-hits.

5. Extension Through the Ball

Just after contact. Your arm should extend toward your target. The racket should continue moving forward, not immediately wrapping around your body. Short extension = deceleration at contact = less power and control.

6. Recovery

After the follow-through. Are you balanced? Are you already moving back toward the center of the court? Or are you falling sideways, stuck watching your shot? Recovery is what separates players who can maintain quality through a long rally from those who fall apart after 4-5 shots.

Common Mistakes You'll Spot on Video

• Late preparation: Racket still going back when the ball bounces. You'll never have enough time to swing properly.
• Arm-only swing: Shoulders don't rotate, all the work is done by the arm. Low power, high injury risk.
• Falling backward on contact: Weight moving away from the ball. You lose 30-40% of potential pace.
• Wristy contact: Wrist flipping at contact instead of a firm wrist through the hitting zone. Inconsistent direction.
• No split step: Flat-footed when the opponent hits. Delayed reaction to every ball.

Slow Motion vs. Real-Time

Watch in both. Real-time shows you rhythm, timing, and recovery speed — things that look fine in slow motion but are actually rushed or late. Slow motion shows you racket face angle, contact point precision, and joint positions that happen too fast to see in real-time.

If you only have time for one, watch real-time first. It's closer to what matters in a match.