The Heavy Ball
Physics of the heavy ball — why pro balls feel different and how it changes the game.
Articles
| Article | Focus |
|---|---|
| Ball Speed in Pro Tennis | Pro ball-speed study from high-speed video: how fast do pros actually hit, and what happens between racquet and opponent. |
| Ball Spin in Pro Tennis — Part 1 | First-ever study of actual spin rates in pro tennis, the methodology, and what the results showed. |
| Ball Spin in Pro Tennis — Part 2 | Continuing the spin analysis: how spin interacts with speed, what makes a shot feel 'heavy', and what pro data reveals. |
| Groundstroke Velocities Soar in Pro Tennis | Why pro groundstrokes are now hitting speeds that were once the exclusive domain of serves. |
| Mysteries of the Heavy Ball — Introduction | What does the term 'heavy ball' really mean? The introduction to the Heavy Ball research project. |
| Speed and Spin | The inverse relationship between ball speed and spin, and how pros manipulate both to create unreturnable shots. |
| Spin Rates and Axis of Rotation in Elite Serving | How pro servers manipulate spin axis to hit effective slice, kick, and flat serves at the highest level. |
| The Heavy Ball — Table of Contents | Table of contents for the Heavy Ball research series — overview and reading order. |
| The Heavy Serve — Practical Implications | What the heavy serve research means for actual returners: positioning, timing, and tactics against the biggest serves. |
Source: tennisplayer.net — John Yandell teaching archive (2002-2022).