To execute an effective kick serve, two technical keys are essential:
✅ Upper back extension (thoracic spine):
You need to arch your upper back so you can strike the ball above — or even slightly behind — your head. That’s what gives the ball that signature “kick” spin that drives opponents crazy.
✅ Proper racquet drop:
A smooth and powerful racquet drop requires good external shoulder rotation. This creates the space you need for a fast, upward whip.
🚫 But be careful!
Many players — especially juniors — compensate the wrong way: instead of extending the upper back, they over-arch the lower back.
❗️Result?
Back pain, overload, and avoidable injuries.
For young athletes in particular, protecting the lumbar spine is crucial.
🎯 The secret?
Train thoracic mobility, focus on posture, and learn to separate proper upper extension from harmful lower back hyperextension.
👉 “Power is nothing without control.”
— And yes, that applies to the kick serve too!
If you’d like, I can send you a specific training guide with thoracic mobility drills to help improve your serve and protect your spine. Just let me know!
by Federico Coppini
https://coppinitennisacademy.com/
