SAN DIEGO — The official name of the facility is the Barnes Tennis Center, but once through the front doors, it quickly becomes apparent that it might want to consider expanding its branding.

From cliffside clay courts in the Swiss Alps, to the salsa capital in Cali, Colombia, photographer Nick Pachelli highlights the world’s unique courts.

The battle for court space has arrived—and tennis is losing ground fast. Today, the USTA says, at least 10% of tennis courts in America have been taken over and repurposed for pickleball ...

On the courts at Cole Park, tennis and pickleball players get along. ... Pickle, as some younger folks refer to it, is played with a wiffle ball on a smaller court than tennis.

Data show a third of Boston's tennis courts now have pickleball courts drawn over them, provoking beef between tennis and pickleball players who must compete for court space.