Tennis First Serve % Calculator
Calculate first serve percentage from serves in and attempts.
Frequently Asked Questions
What is first serve percentage?
First Serve % = (first serves in) ÷ (first serve attempts) × 100. Shows consistency on first serve. Higher % = more aggressive, fewer second serves needed.
What is a good first serve percentage?
<50%: Below average. 50–60%: Average. 60–65%: Good. 65–70%: Very good. >70%: Elite. Pro men average 55–65%, women 50–60%.
How do I calculate first serve percentage?
(First serves made ÷ first serve attempts) × 100. Example: 65 out of 100 first serves in = 65%.
Why does first serve percentage matter?
High % allows aggressive play. Low % forces more second serves (weaker). Directly affects match strategy and points won.
How does first serve percentage affect win percentage?
Strong correlation. Players with 60%+ first serve % win more matches. Each 5% increase in first serve % ≈ 5% improvement in win rate.
What is the relationship between first serve % and first serve win %?
Different metrics. First Serve % = consistency. First Serve Win % = points won on first serve (efficiency). Both matter.
Can first serve percentage be too high?
Yes. Overly cautious serves (lower speeds) might enter more but lose more points. Elite players balance % with speed/power.
How does surface affect first serve percentage?
Grass: requires accuracy, harder to be aggressive (lower %). Hard court: more speed possible, higher %. Clay: defensive, lower %.
What is a good baseline first serve percentage?
Pro: 55–65%. Collegiate: 45–55%. High school: 40–50%. Amateur: <40%. Varies by level and coaching.
Is first serve percentage predictive?
Moderate. Shows consistency but not power/speed. A low-speed 75% might lose more points than high-speed 55%.