You will not reach zero unforced errors, and trying to can make you play too passively. A better aim is to remove the errors that repeat: the same stroke, the same miss, in the same situation. You can find those on video and change them in practice.
Forced or unforced: how to tell the difference
An error is forced when your opponent's shot caused the problem. It is unforced when you had a fair chance to play the ball and still missed. Players and apps draw this line in different ways, so choose one test and keep it: you had time to set your feet, and the ball was no harder than a normal rally ball. If you are unsure, leave the error out of your count.
| What happened | Mark it as | Why |
|---|---|---|
| A medium-paced ball to your forehand, feet set, and you hit the net | Unforced | You had time and a comfortable ball. |
| A deep, fast ball jams you and you miss | Forced | You had no time to set your feet. |
| You run wide at full speed and miss the sideline | Forced | Your opponent moved you out of position. |
| A short, slow ball, you go for a winner and it lands long | Unforced | The ball was easy. The question is whether the swing or the choice failed. |
| Your opponent is at the net, you have time, and your pass goes wide | Unforced if your feet were set | The pressure came from their position. Make one decision here and use it every time. |
Do better players really make fewer unforced errors?
Less clearly than you might expect. SwingVision, a tennis app, has published data from its own users showing 7.87 unforced errors per match at NTRP 2.5, about 12.4 at 3.5 and 4.0, and 11.31 at 5.0. SwingVision does not state how the NTRP labels were assigned or how errors were classified, so these numbers do not describe what any level is. They do show that in this data, errors do not simply fall as the level rises. One possible reason is that stronger players play longer rallies and try harder shots, but the data cannot confirm that.
Inside a single match, errors still matter. A small study of 8 men's professional matches on hard courts found that the winners of games hit more winners and made fewer unforced errors. That is professional tennis, so it may not carry over to your level. So do not chase a fixed number. Compare yourself with your own last match and with the player across the net. If you want a measure that allows for rally length, use balls per error, explained in our consistency drills.
How to sort your own errors from video
Use a filmed match or practice set and take a sample of about six games, as in our 20-minute match review. This tally goes one step further than that sheet. Each unforced error gets up to four marks, written by hand.
- Stroke: F for forehand, B for backhand, V for volley, O for anything else.
- Miss: N for net, L for long, W for wide.
- Situation: D if you were defending, R if it was a neutral rally ball, A if you were attacking a short or weak ball, S if it was your first shot after the serve or return.
- Choice: add a star if the shot was a poor choice, even if you had hit it well.
A line on your sheet might read "B N R": a backhand, in the net, on a neutral ball. After six games, group the lines. Three or more of the same kind is a pattern worth your practice time.
| Your largest group | What it often means | First change |
|---|---|---|
| Net, on neutral rally balls | A low target, late contact or a flat swing | Raise your target to about 1 m (3 ft) over the net. See why shots go in the net. |
| Long, when attacking | A harder swing because the ball looks easy, or too little spin | Swing at about 70% and aim about 1.5 m (5 ft) inside the baseline. See why shots go long. |
| Wide, when changing direction | Going down the line from a late or off-balance position | Stay crosscourt until your contact is in front of you and your feet are set. |
| Any miss on the first shot after serve or return | Rushing the start of the point | Choose that shot before the point begins and play it to a large target. |
| Mostly stars | The stroke may be fine and the decision is the problem | Use the three-yes rule below. |
| Evenly spread | Often late preparation or poor spacing | Slow the rally down in practice and watch when your racket starts back. |
How much margin to leave: height, width and depth targets
Margin is the distance between where you aim and where the ball would go out. From a safe target, a small miss still lands in. These are common starting points, not rules. Coaches differ, and the right numbers depend on your spin, your pace and where you stand.
| Margin | Starting target | Why it helps |
|---|---|---|
| Height | About 1 m (3 ft) over the net on neutral balls | A ball that clears the net by a small amount has little room for a low miss, and it often lands short. |
| Width | About 1.5 m (5 ft) inside the sideline | A small miss to the outside still lands in. |
| Depth | Past the service line and about 1.5 m (5 ft) inside the baseline | Deep enough to keep your opponent back, with room for a miss on the long side. |
| Swing | About 70 to 80% of full effort on neutral balls | A swing you can repeat is easier to time. |
| Direction | Crosscourt as your default | The net is lower near the center: 0.914 m (3 ft) against 1.07 m (3.5 ft) at the posts. The diagonal is also longer: about 25.2 m (82.5 ft) corner to corner on a singles court, against 23.77 m (78 ft) along the sideline. |
Shot choice under pressure: the three-yes rule
If your sheet has many stars, look at your choice of ball. As the ball comes, ask three questions.
- Am I balanced, with my feet set?
- Can I make contact in front of my body?
- Is the ball at a comfortable height, about waist height or a little above?
Three yes answers mean you can attack, still to a large target. Any no means you play a neutral ball, deep and crosscourt, and wait for the next chance. If you are stretched wide or far behind the baseline, hit high and crosscourt to give yourself time to recover. This rule is our suggestion. An aggressive player will attack more balls than a patient one, and that is fine if your count shows the attacks win more points than they lose.
At 30-30, deuce and break points, use the same rule and pick the pattern you trust most. Safe does not have to mean slow. A soft, short ball gives your opponent an easy attack, so keep your swing and raise your target instead of slowing your arm.
A drill that makes easy errors expensive
This points game for two players takes about 20 minutes.
- Start each point with a crosscourt rally ball and no serve. Play to 11.
- A point won in the normal way scores 1.
- An unforced error, using the test above, gives your opponent 2. Call your own errors. If you both disagree, play the point again.
- After each error, say the miss out loud ("net", "long" or "wide") and shadow one swing with the fix before the next point.
- Write down each player's unforced errors at the end of each game. Play three games.
As a suggested target, aim for no more than 3 unforced errors in a game, then no more than 2. If your errors fall but your opponent starts attacking you freely, you have gone too safe. Add pace and keep the same target.
How to check that the change worked
After your next match, run the same six-game tally with the same test and compare the group you worked on. If it fell, keep the target for one more week or move to the next group. If it stayed the same, go back to the video and pause at contact on three of those errors, because the cause may be different from your first guess. One match is a small sample, so look at the trend over three.
TennisAI's stroke feedback can help at that pause, for your forehand, backhand and serve. It comments on timing, contact point and footwork and gives an automated estimate as a score, so keep the camera angle the same between sessions. Its listing does not advertise match statistics, so the error count stays on your paper.
Frequently asked questions
What is an unforced error in tennis?
It is an error your opponent's shot did not cause. A practical test is that you had time to set your feet and the ball was no harder than a normal rally ball. Players and apps count them in different ways, so use the same test every time.
What is the difference between a forced and an unforced error?
A forced error comes from pressure in your opponent's shot, such as pace, depth or making you run wide. An unforced error comes on a ball you could reasonably have played.
How many unforced errors per match is normal?
We know of no official benchmark. In data SwingVision published from its own app users, the average was 7.87 at NTRP 2.5 and about 11 to 12 from 3.0 to 5.0, but it does not state how levels were assigned or errors classified. Use your own last match as the benchmark.
Should I hit softer to make fewer errors?
Not necessarily. A small drop in effort on neutral balls can help your control, but a soft, short ball is easy to attack. Try raising your target and aiming further inside the lines first.
Why do I make more unforced errors when I am ahead or under pressure?
A common pattern is to slow your arm or aim closer to the lines when a point feels important. Choose your safest pattern in advance, and check on video whether your errors cluster at 30-30 or later.
See this in your own game
Upload a practice or match video to TennisAI and get feedback on your forehand, backhand and serve.
Sources
This article is general information about tennis training and does not replace a coach or medical advice. Stop and see a professional if something hurts. TennisAI is made by Pace, the publisher of this blog.
