The ATP will trial more frequent ball changes at the Lexington Challenger next month: main draw singles get the first change after 5 games, then every 7 down from the standard 7, then 9.
Backed by the Player Advisory Council, it follows player feedback on hard-court ball wear.
Ive often wondered in the harder hitting times we are in whether the old 7/9 rule was appropriate, so good to see this.