When a player enters a state of peak performance where everything clicks. Shots land on the lines, serves are unreturnable, and every decision is the right one. It's a flow state. Players describe it as feeling like the court is bigger and the ball is moving slower. The scary thing for opponents is that when someone is in the zone, there's genuinely nothing you can do except wait for it to pass.
"She's in the zone. Fourteen straight points. Her opponent is just trying to survive."