What is court speed?
How much the court helps the server, judged from aces and serve points won and adjusted for who played. 100 is the average ATP tournament court that season.
Challenger and ITF courts usually read lower: partly the venues, partly the balls and conditions at those levels.
How court speed works0.9 vs last year
Everything that shapes this match: each player’s run-in and travel, records side by side, and results against similar opponents and in similar conditions. Better information, better-informed decisions.