A reliable second serve depends on spin, not on slowing your arm down. Use a continental grip, keep a full, relaxed swing, brush up and across the ball to create topspin or slice, clear the net with generous margin and aim for large targets such as the returner’s backhand or body rather than the lines. The spin brings the ball down into the service box, so you can swing with confidence even under pressure. Many double faults happen because players decelerate and try to guide the ball in, which removes the spin that keeps it safe. This guide explains the keys to a dependable second serve, the types of second serve, the technique step by step, drills, tactics, how to handle nerves and the mistakes that lead to double faults.
Rulebook note: Under the ITF Rules of Tennis, the server has two attempts to make a good serve, and two faults in a row is a double fault, which loses the point. Some formats and events have different rules on lets or time between serves, so check the current rules for your competition.
Health note: Spin serves involve a strong upward swing that loads the shoulder and back. Warm up, build serve volume gradually and seek advice from a qualified professional if pain persists.
Second serve keys
| Key | Why it matters |
|---|---|
| Full, relaxed swing | Decelerating the arm causes errors |
| Heavy spin | Brings the ball down into the box |
| Net clearance | A meter or more gives margin |
| Big targets | Aim at the backhand or body, not the lines |
| Consistent toss | Makes the motion repeatable |
| Consistent routine | Calms nerves under pressure |
Why spin is the answer
A flat serve travels in a relatively straight line, so to land it in the box it must pass low over the net, which leaves little margin. Topspin makes the ball dip down sooner, allowing you to aim higher over the net and still land in the box. Slice curves the ball sideways, which also adds control. Because spin comes from racquet speed brushing across the ball, you need a full swing, not a slow one. Many players are surprised to find that their second serve becomes more reliable when they swing faster with more spin.
Types of second serve
The most common second serves are the topspin serve, which dips and bounces high; the kick serve, which combines topspin and sidespin and jumps sideways after the bounce; and the slice serve, which curves and stays lower. Many advanced players rely on a kick or topspin second serve because of its margin and high bounce. Beginners and intermediates often find a slice or topspin-slice serve easier to learn at first. The best choice is the one you can hit reliably under pressure.
Technique
Use a continental grip, or one slightly toward an eastern backhand, to allow brushing and pronation. Place the toss slightly more over your head than for a flat serve, so you can swing up and across the ball. Bend your knees and let your shoulders tilt, then drive up with the legs and swing the racquet up and out. Brush the back of the ball from low to high, and across it for slice or kick. Keep the arm relaxed and the swing complete, finishing fully rather than stopping short.
Step-by-step: a reliable second serve
- Use a continental grip.
- Toss slightly over your head and keep it consistent.
- Load the legs in the trophy position.
- Swing up and out, brushing the ball.
- Keep the arm fast and relaxed; do not decelerate.
- Aim high over the net, about a meter or more.
- Target a big area, such as the backhand side of the box.
- Finish the swing fully.
Targets and tactics
Second serves do not need to hit the lines. Aim for large areas, such as the half of the service box toward the returner’s backhand or directly at their body. A deep second serve is harder to attack than a short one, so focus on depth as well as direction. High-bouncing kick serves to the backhand can be especially effective, since many players struggle to return high balls on that side. Vary your second serve occasionally so returners cannot predict it and step in too easily.
Handling pressure
Double faults often happen at tense moments, such as break points or tiebreaks. A consistent routine helps: bounce the ball the same number of times, take a breath, pick your target and commit. Remind yourself to swing fully and trust the spin. Avoid the urge to push the ball in gently. Practicing second serves under pressure in training builds the confidence to use them in matches.
Drills
Ten in a row: Hit ten second serves in a row with spin before moving on. If you miss, start again.
One-serve games: Play practice games where you have only one serve, forcing you to use your second serve on every point.
Half-box target: Serve to a target covering half the service box, then shrink it as you improve.
Rope drill: Place a rope or visual marker above the net and serve over it while still landing in.
Tired serves: Practice second serves at the end of practice or after running, to simulate late-match fatigue.
Track stats: Count double faults and second-serve points won in practice sets.
Adjusting for conditions
Conditions affect second serves. In wind, lower the toss slightly and add more spin for control. Serving into a strong wind may allow a bit more pace, while serving with the wind behind you calls for more spin and net clearance to keep the ball in. In cold weather, balls bounce lower and feel heavier, so a kick serve may not jump as much. At altitude, the ball travels faster, so extra spin helps. Adjust your targets and margins to the conditions rather than keeping exactly the same serve every day.
Building confidence over time
A dependable second serve takes time to build. Include second serves in every practice session, not just first serves. Film your serve to check your toss, swing path and follow-through. Work with a coach if you struggle to create spin. As your second serve becomes more reliable, you can take more risk on your first serve, which improves your overall serving.
Second serves in doubles
In doubles, a reliable second serve is especially important because returners often attack weak second serves, putting the server’s partner at the net under pressure. Aim deep and to the returner’s weaker side, and communicate with your partner about where you will serve so they can position themselves. A high-bouncing second serve can also give you time to move forward if you serve and volley.
Common mistakes
- Slowing the arm to guide the ball in.
- Hitting flat on second serves.
- Aiming too close to the lines.
- Low net clearance.
- An inconsistent toss.
- Practicing only first serves.
- Rushing the routine under pressure.
Frequently asked questions
Why do I double fault under pressure?
Most double faults come from slowing the arm and guiding the ball. Swing fully and trust the spin to bring the ball down.
What type of second serve is best?
Kick and topspin serves are popular because of their margin and high bounce, but the best one is the serve you can hit reliably under pressure.
How high should my second serve clear the net?
Many players aim to clear the net by about a meter or more, relying on spin to bring the ball down into the box.
