High performance tennis at 40+

Group lesson: Use legs, breath out, ...
Week-end serve sessions: Aim in a window above the net, scorpion kick, ...

Constantly research the mental, fitness, technical and tactical aspects
Watch tennis all levels to identify players playing style and weaknesses to visualize how to defeat them
Go last mile by dedicating half an hour to work the serve once a week
Non-tennis days: Power walk, stationary bike, forearms, core, legs
Listen to your body. If you are tired mentally or physically, just rest

Build your training

Always have a single objective per training in Apple Reminders:

The following single page template in Apple Pages help to track my progress and player identity:

Current-Year objective: X, Y, ...
Hardware setup: Racket, string, overgrip, ...
Training routine: X hours of group lesson tennis per week, bike, ...
Main strengths: Identify one strength per Mental, Fitness, Shot Technique and Tactic category
Weaknesses to improve: Identify one weakness per Mental, Fitness, Shot Technique and Tactic category
Game intentions: Identify intention per situation like between points, when the ball is on opponent side, serve, return of serve, groundstrokes, when inside the court, at the net
Adjustments based on the opponent playing style: Play more short cross, ...
Plan B: Do X on clay, do Y on hard, do Z in windy condition
Private lessons history: Date, location, pro name, what went ok, what can be improved