Rules · Faults

Unforced error in tennis: understand it, prevent it, fix it

An unforced error in tennis is a miss on a playable ball, with no particular pressure from the opponent: into the net or out. It usually comes from badly chosen risk, poor positioning or a lapse in concentration, and you reduce it by playing with more margin.

Player in the ready position on a clay court at the Mouratoglou Academy

Key takeaways

  • Definition: an unforced error is a miss on a ball you should have put back in play.
  • Not to be confused with a forced error, drawn out by the quality of your opponent’s shot.
  • Causes: excessive risk, sloppy positioning or footwork, poor tactical choices, concentration, fatigue.
  • Remedy: aim higher and further from the lines, get set early, save attacks for the right balls.
  • Measure it: count your unforced errors by shot and by situation to know what to work on.

What is an unforced error in tennis?

An unforced error is a miss on a ball that posed no particular difficulty: you had the time, balance and position to play it, yet it ended in the net or out. It is one of the statistics tracked in every professional match.

It is the opposite of a forced error, where the pace, depth or angle of your opponent’s shot forces you into the miss. The line can be subjective: in official statistics, a match statistician decides whether the ball was “playable”.

The double fault is a separate case: it has its own line in the statistics and its own guide, the double fault in tennis.

Why are unforced errors so costly?

Every unforced error is a free point: your opponent wins it without hitting a decisive shot. Piled up, they break your momentum and reassure an opponent who only has to keep the ball in play to watch you crack.

At club level, most points end with an error rather than a winner. Cutting your unforced errors is therefore often the fastest way to win more matches, even before improving your attacking shots. To place unforced errors among the other faults, see our guide to tennis faults.

Coach crouching to talk to a seated player during a changeover
Reviewing your errors with a coach shows you what really needs to change.

What causes unforced errors?

CauseWhat happensFix
Excessive riskAiming for the lines or going for a winner off a difficult ballAim a metre inside the lines, attack only short balls
Late positioningHitting late, too close to or too far from the ballSmall adjustment steps, earlier preparation
Not enough net clearanceLow balls ending in the netClear the net higher, with topspin
Lapse in concentrationMisses on easy balls, often in clustersA routine between points, one simple goal per rally
FatigueHeavy feet, shortened swingFitness work, managing effort during the match

Footwork is often underrated: many “arm” errors are really foot errors. Our article on baseline footwork explains how to get set properly.

How can you make fewer unforced errors?

  1. Play with margin: aim for an area about a metre inside the lines and clear the net comfortably. Topspin lets you hit high without the ball sailing long.
  2. Sort the balls: on a difficult ball, reset high and deep; on a neutral ball, build the point; attack only the short, easy ball.
  3. Prepare early: shoulders turned and racquet ready as soon as you know which side the ball is coming to.
  4. Set one simple goal per point: “deep cross-court”, for example, rather than deciding at the last moment.
  5. Measure: during a practice set, have someone log your unforced errors by shot (forehand, backhand, volley) and by situation.
Patrick Mouratoglou giving instructions to a player on a hard court
One simple instruction per point helps you keep margin in tight moments.

Cutting unforced errors also comes down to better choices: our guide to tennis tactics helps you know when to attack and when to build. The Mouratoglou Method always links an error to its source, positioning, shot selection or emotion, rather than fixing the stroke blindly. At the Mouratoglou Academy on the French Riviera (Biot, near Nice), coaches use match statistics to target this work.

How do you stop unforced errors from snowballing?

One unforced error often leads to another: frustrated, you try to make up for it by hitting harder. After a miss, go back to your routine (breathing, looking at your strings, an intention for the next point) and play the next point with more margin, not less. The keys to staying clear-headed are covered in our guide to the mental side of tennis.

No more unforced errors: add spin for margin (0:54)

This is exactly what we work on at our camps: consistency, shot selection and handling errors, with 4 players per coach. For adults, the Performance Camp Adult combines technique and match play.

Performance Camp AdultAdultsFull daysAll levelsPerformance Camp AdultA week of intensive tennis, 4 players per coach: technique, match play, physical and mental training.DISCOVER

Frequently asked questions

What is the difference between an unforced error and a forced error?

An unforced error happens on a playable ball, under no real pressure: it is down to you. A forced error is drawn out by the quality of your opponent’s shot (pace, depth, angle): it mainly reflects your opponent’s merit.

Is a double fault an unforced error?

In match statistics, double faults are counted separately. But the logic is the same: an error made without your opponent doing anything to force it.

What is the difference between an unforced error and a foot fault?

A foot fault breaks the service rules: your foot touches the baseline or the court before contact. An unforced error is a playing error: the ball goes into the net or out although it was playable.

Which drills help reduce unforced errors?

Cross-court consistency sets with a target number of balls, rallies where you may only attack short balls, and wide targets a metre inside the lines. Count your errors by shot to know where to focus your training.

How many unforced errors is normal in a match?

There is no ideal number: an attacking player takes more risks and naturally makes more errors than a defender. The useful indicator is the ratio between winners and unforced errors, and above all when those errors happen. To analyse it with a coach, the Performance Camp Adult at the Mouratoglou Academy on the French Riviera includes match situations.

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Margin, positioning and shot selection: our coaches help you make fewer unforced errors without losing your aggression.

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