Why Tennis is 90% Mental (And What to Do About It)

Why Tennis is 90% Mental (And What to Do About It)

The first time someone told me tennis was "90% mental," I nodded along like I understood. After all, I'd heard this saying countless times from coaches, commentary analysts, and that friend who always seemed to know about sports. What I didn't realize was how completely wrong that framing was—not because it's inaccurate, but because it massively understates the truth.

Let me ask you something. When you first learned to play tennis, where did you focus your attention? If you're like most beginners, you probably concentrated on the ball, watched your racket, worried about your footwork, and wondered if you were swinging correctly. Maybe you thought about where to place your shots. These are all physical concerns, and they matter—but they're only part of the story. Way, way smaller than most people realize.

The truth is, tennis isn't 90% mental. It might not even be 99% mental. But before we get into the numbers game, let me share a story that illustrates why I'm making such a seemingly outrageous claim.

The Match That Changed Everything

A few years ago, I was coaching a teenager named Marcus who had been playing tennis for about six months. He was athletic, quick, and had natural hand-eye coordination that made other coaches envious. When we first started working together, Marcus could hit a decent forehand and had a love for the game that was genuinely infectious. His problem? He couldn't win a match to save his life.

This might sound familiar to some of you. You've been playing for a while, you can rally comfortably with friends, you even look good doing it sometimes. But the moment competition enters the picture—the moment there's actually something on the line—you turn into a different player. Your hands get tight. Your mind races. Suddenly that easy forehand you've hit a thousand times in practice goes long by a mile, or into the net, or anywhere but where you intended.

Marcus experienced this exact phenomenon. In practice, he could hit with anyone at our club. In matches, he lost to players who could barely keep the ball in play during warm-ups. It was frustrating to watch, both for me and for him.

One afternoon, we decided to do something different. Instead of practicing strokes, I asked Marcus to just play a set—but with one condition. He had to say out loud, in real time, every thought that crossed his mind during the match. Not the technical thoughts like "follow through" or "step into the ball." The *other* thoughts. The mental chatter. The stuff that happens between your ears.

What emerged was absolutely fascinating.

As soon as the match started, Marcus began narrating: "Okay, don't double fault. God, I hope I don't double fault. Man, if I lose this first game, this guy's going to think I'm terrible. Wait, why did I serve there? That was stupid. He's going to hit winner there. See? Told you. Great. Now I'm down love-40. This is going to be embarrassing. Maybe I should just moonball him. No, that's weak. What would coach say? Focus. FOCUS. Why can't I focus? Okay, big point, don't mess this up."

And on it went. For an entire set, Marcus verbalized his internal monologue, and what we heard painted a picture of a player locked in a constant battle with himself—second-guessing decisions, catastrophizing mistakes before they happened, and creating pressure where none existed.

After the match, we watched the recording together. Marcus's expression changed dramatically when he heard his own thoughts. "Is that really what I'm thinking out there?" he asked, genuinely shocked. "I sound... I sound crazy."

He wasn't crazy. He was experiencing something that every tennis player—from complete beginners to Grand Slam champions—deals with constantly. The difference is that elite players have learned to manage this mental noise, while beginners often don't even realize it's happening.

What We Mean by "Mental Game"

When coaches and commentators talk about the "mental game" in tennis, they're referring to a collection of psychological skills and processes that influence how you play. This includes:

Emotional control — the ability to stay calm under pressure, to manage frustration after unforced errors, and to celebrate points without getting overexcited. Emotions are powerful, and in tennis, they can either fuel your performance or derail it completely.

Concentration and focus — the capacity to maintain attention on the present moment rather than dwelling on past mistakes or worrying about future outcomes. Tennis is unique in that it's essentially a series of individual moments, each lasting just a few seconds, and you need to be fully present for each one.

Confidence and self-belief — the trust in your abilities that allows you to play freely and take risks. Confidence doesn't mean arrogance; it means believing that you've prepared well and that you're capable of executing your skills when it matters most.

Decision-making under pressure — the mental process of choosing shot selection, strategy, and tactics when the stakes feel high. The same decision that seems obvious in practice can feel impossibly complex during a match.

Visualization and mental rehearsal — the ability to create vivid mental images of successful performance, which actually helps train your brain and nervous system for real-world execution.

Resilience and bounce-back ability — the mental toughness to recover from bad breaks, unfavorable calls, or simply terrible points without letting them affect subsequent points.

Most beginners, when they hear "mental game," assume this is something that only matters at elite levels of competition. They think, "I'm just playing for fun," or "I'll worry about that stuff when I get better." But here's the critical insight that will shape everything you learn in this book: the mental game doesn't become important at higher levels of tennis. It IS tennis.

Every single point you play involves mental processes. Every serve, every return, every decision about where to hit the ball—all of these require psychological input. When you're practicing alone, the mental game is still there, shaping your focus, your motivation, your willingness to push through frustration. When you're playing recreationally with friends, the mental game influences whether you're having fun or getting angry at yourself. When you're competing in a league or tournament, the mental game determines whether you play up to your ability or collapse under pressure.

The mental game isn't a separate component that you add to your tennis as you improve. It's the foundation upon which everything else is built.

The Invisible Point

Let me introduce you to a concept that will recur throughout this book: the invisible point.

What exactly is an invisible point? It's a moment during a tennis match where the outcome is determined more by mental factors than by physical or technical execution. These points are "invisible" because on the surface, they look like ordinary points. You see two players hitting a ball back and forth, and everything appears to be about technique, footwork, and shot-making. But if you could look beneath the surface—into the players' minds—you'd see an entirely different game being played.

Here's a simple example. Imagine a beginner playing their first match against an opponent of similar ability. The score is 5-4 in the first set, with our player serving for the set. They step up to the baseline, bounce the ball a few times, and prepare to serve.

From a technical standpoint, nothing has changed. They have the same serve they've been practicing for months. Their footwork is the same. Their racket path is the same. But something feels different. The scoreboard says this is a big moment, and their nervous system has registered this fact.

They toss the ball, swing, and—block! The serve goes into the net. They try again. This time it lands in, but it's a weak seco