How tennis data is rewriting the script of modern matches

Tennis once lived almost entirely in the moment. A rally unfolded, the crowd reacted, the umpire called the score, and then it was gone, preserved only in memory and a few grainy statistics on a scoreboard.

Today, every serve, spin and split step leaves a digital footprint. From Grand Slam show courts to lower-tier tournaments, the sport is being quietly reshaped by a new protagonist: data.