First Serve Percentage

First serve percentage is calculated by dividing first serves made by total service points played. It is one of the oldest and most cited tennis statistics because it captures a trade-off every server must manage: hit a bigger, riskier first serve for more free points, or a safer one that lands more often but gives the returner an easier look. Tour pros typically land between 55% and 70% of first serves, with serve-and-volley and big-serving players often sitting toward the lower end because they accept more misses in exchange for more unreturnable serves.

The number only tells half the story on its own — it has to be read alongside points won behind the first serve. A player landing 75% of first serves but winning few of those points is likely serving too passively, while a player at 55% who wins the large majority of first-serve points may be correctly trading volume for aggression. Coaches use first serve percentage trends within a match to spot fatigue, toss breakdown, or nerves creeping into the motion, since the number typically drops when the toss or rhythm gets inconsistent under pressure.