Tennis transformed my fitness — specific results after 17 months

I track everything, so here are actual results after 17 months of Tennis: significantly improved cardiovascular fitness, noticeable strength gains, and a flexibility improvement I didn't expect. None of that came from a gym program — it came from learning slice backhand and understanding serve placement patterns.

first club competition was the qualitative thing I didn't expect to measure but felt clearly. The racket cost was about what I expected. serve coordination taking months is real — I had to adjust my schedule around it. For pure fitness return on time investment, Tennis is hard to beat.