Open Skills vs Closed Skills: Why Tennis Is Mostly Perception, Not Technique

A common belief among amateur tennis players is that getting better means hitting the ball more cleanly. Better forehand technique. Better backhand technique. Better serve mechanics. The path forward is in the strokes.

This belief is half-right. Technique matters. But it captures only one side of the sport. The other side — the side that distinguishes good players from great ones — is perception. The ability to read the ball, read the opponent, read the court. The ability to make decisions under time pressure that put the player in the right place to execute the right shot. Without perception, even perfect technique fails.

This article is about the distinction between closed skills and open skills, why most of tennis falls into the open-skill category, and what that means for how you should be training.

The Closed vs Open Skill Distinction

In motor learning, skills are classified along a continuum:

Closed skills are executed in a stable, predictable environment. The performer controls when to begin. The same action can be repeated under identical conditions. Examples: a free throw in basketball, a golf swing from a stationary ball, a serve in tennis.

Open skills are executed in a changing environment. The timing is controlled by external events. Adaptation is constant. Examples: defending in soccer, returning serve in tennis, hitting a ground stroke during a rally.

Tennis has one closed skill — the serve — and many open skills — every other shot. The math means tennis is fundamentally an open-skill sport. Most of what you do during a match is responding to an unpredictable environment.

Why This Matters

The implications are significant for how training should be structured.

Implication 1: Decision-making is the bottleneck, not stroke execution. A player with technically perfect strokes who reads the ball poorly will be slow, late, and frequently in the wrong position. A player with technically average strokes who reads the ball well will be early, balanced, and in the right place. The second player wins more matches.

Implication 2: Practice that doesn’t include reading is incomplete. Drilling forehands fed by a coach for an hour develops the stroke but doesn’t develop the read. The coach’s feeds are too predictable. The player learns to hit, but doesn’t learn to react. Match-realistic practice has to include the reading component.

Implication 3: Perception is trainable. Many amateur players think they “have” their level of court awareness and can’t improve it. The research on perceptual-motor skills shows otherwise. Like physical skills, perception responds to deliberate practice — when the practice is structured to develop it.

What Perceptual Skill in Tennis Actually Looks Like

Watching elite players, you can identify several perceptual capacities that separate them from amateurs:

Capacity 1: Cue recognition before contact. Elite players read the opponent’s body before the ball is even struck. The toss location, the shoulder angle, the racquet path — these telegraph the serve. Elite returners commit to their movement direction before the ball leaves the strings.

Capacity 2: Trajectory prediction. Once the ball is struck, elite players predict its bounce point and post-bounce path within milliseconds. They can do this for a wider range of shot types than amateurs because they have seen more of them.

Capacity 3: Court geometry awareness. Elite players know — at any moment — where they are, where their opponent is, where the ball is, and where the available targets are. This awareness updates continuously during the rally.

Capacity 4: Pattern recognition. Across multiple points, elite players recognize their opponent’s tendencies. The recognition allows them to anticipate, not just react. Anticipation is faster than reaction.

Capacity 5: Decision speed. All of the above must happen in less than a second per shot. Elite players don’t think faster than amateurs; they think more efficiently. The relevant information is prioritized; irrelevant information is filtered.

These five capacities are all perceptual, not technical. They are trained differently than strokes. Most amateur tennis programs don’t train them at all.

What Trains Open Skills

Research on motor learning in open-skill sports suggests several training principles:

Principle 1: Variability. Practice in conditions that vary from rep to rep is more effective for open skills than repetitive identical conditions. A coach feeding the same ball to the same spot 100 times trains stroke execution but underutilizes perceptual learning. A coach varying pace, spin, depth, and direction across feeds develops both stroke and perception simultaneously.

Principle 2: Contextual interference. Mixing different skills in a practice block (forehand, backhand, volley alternating randomly) is harder in the short term but produces better long-term learning than blocked practice (all forehands, then all backhands). The “interference” forces the player to make decisions, which is what open skills require.

Principle 3: Game-like conditions. Practice that simulates match conditions — with consequences, scorekeeping, opponents who can vary their play — develops open skills better than isolated drilling. This is why “match play” and competitive practice produce different gains than feeding drills.

Principle 4: Quiet eye and attention training. Specific techniques to direct attention to the most relevant cues — the opponent’s racquet at contact, the ball at bounce — improve perceptual reading. Some elite training programs use explicit attention drills.

Principle 5: Video study. Watching matches with deliberate attention to what experienced players are reading — toss patterns, body cues, recovery positioning — develops the perceptual framework even without on-court work.

What Most Amateur Practice Misses

In coaching practice, three common gaps:

Gap 1: Too much closed-skill-style practice. Hitting buckets of forehands fed by a coach to the same spot. This develops the stroke but does not develop the read.

Gap 2: Drilling without consequences. Practice points that aren’t scored, that don’t matter, with no opponent variability. Players go through the motions without the cognitive engagement that produces perceptual learning.

Gap 3: No video study. Almost no amateur players review video of their own matches or study professionals systematically. The perceptual lessons of watching tennis at a high level go untapped.

The fix for all three is conceptual: treat perception as a trainable skill, design practice to include it, and supplement court time with video work.

How to Build Perceptual Skill

A practical week’s training that develops open-skill perception alongside technique:

Sunday: Video study (30 minutes). Watch a single professional match. Don’t watch the points. Watch the players between points — how they read situations, where their eyes go, what they do with their 25 seconds. Note three things you see that you don’t do.

Monday: Variable feeding (60 minutes). Drilling that mixes pace, spin, depth, and direction unpredictably. The coach (or partner) calls out the shot type after each ball lands. The player practices identifying what they just hit and what they should have done differently.

Wednesday: Pattern-specific practice (60 minutes). Drill the serve+1, return-deep-neutral, cross-court battle patterns. Practice both as the executing player and as the defending player. The defensive role develops the read more than the offensive role.

Friday: Practice match with attention focus (90 minutes). Play a practice match where the focus is reading rather than winning. After each point, the player articulates what they read about the opponent’s shot in advance. The articulation forces conscious attention to the perceptual cues.

This structure produces measurable perceptual gains over 6-12 weeks. The technical strokes don’t suffer — variability practice develops them too — but the perceptual capacity grows alongside.

The Closed-Skill Exception

A reminder: the serve is the closed-skill exception. It does not benefit from variability the same way other shots do. Serve practice should be repetitive and high-volume, focused on grooving the motor program (see the serve-as-closed-skill article in this series).

Mixing the principles is the right approach. The serve is trained as a closed skill. Everything else is trained as an open skill. The same player benefits from both kinds of practice, applied to the appropriate situations.

What This Implies About “Naturals”

Coaches and players sometimes use the word “natural” to describe a player who seems to read the ball effortlessly. The implication is that natural talent is what produces good court awareness.

The research suggests a more useful framing. Some players do come into tennis with stronger perceptual baselines — better visual processing, better attention control, more pattern-recognition ability. These differences are real. But they are not destiny. Players who train perception deliberately can develop court awareness that exceeds “natural” levels.

The mistake is treating perception as fixed. It isn’t. It is one of the most trainable aspects of tennis once a coach knows how to train it.

What Pros Look Like Through This Lens

Watching a top-ten player with the open-skill lens is illuminating. Their strokes are good but not always perfect — sometimes the swing is rushed, sometimes the contact is slightly off-center. What is consistently elite is their reading: they are in the right place for almost every ball. They anticipate. They move with intent. They appear to play tennis at a slower pace than amateurs because their perception has bought them time.

Amateurs trying to imitate professional strokes miss this. The strokes are downstream of the perception. The perception is what allows the strokes to function in a real match. Without the underlying read, perfect strokes are still slow.

One Thing to Do on Court Tomorrow

For ten minutes of your next session, play out points but with an unusual rule: before each shot, you must say out loud what you expect the opponent to do next. “Cross-court forehand.” “Slice to the backhand.” “Drop shot.” Even if you’re wrong, you have to commit to a prediction.

Most players, doing this for the first time, are surprised at two things. First, they have been not predicting at all — they have been purely reacting. Second, when they start predicting, they catch themselves moving toward the ball earlier, even when their prediction is wrong. The act of predicting trains the perceptual system whether the prediction is correct or not.

Open-skill sports reward the perceiver, not just the executor. Train both, but if you have to choose what to train more of, train the perceiver. It is the side of the sport most players never develop, and the side that wins points at every level above beginner.

About the author: Emre Köse is a tennis coach at Beykoz Tenis Kulübü in Istanbul, with 12+ years on court. He holds a BSc in Coaching Education from Marmara University, Faculty of Sport Sciences.

Related in this series: The serve is tennis’s only fully closed skill · The perception–decision–execution cycle · Reading patterns

Selected reading:

• Schmidt, R. A., & Wrisberg, C. A. (2008). Motor Learning and Performance. Human Kinetics.
• Williams, A. M., & Ford, P. R. (2013). Game intelligence: anticipation and decision making. In Science and Soccer: Developing Elite Performers. Routledge.
• Vickers, J. N. (2007). Perception, Cognition, and Decision Training: The Quiet Eye in Action. Human Kinetics.