Padel, explained: tennis scoring on a glass-walled court

In one line: The sport of 30 million players in 140+ countries: how the walls work, why it is doubles-only, and the tennis scoring system it quietly kept.

Padel is the racket sport most people meet second-hand: a friend books a court, mentions glass walls, and the details of what makes it a different game never arrive. Three features define it — the walls, the doubles-only rule, and borrowed tennis scoring.

The court and the walls

A padel court is roughly a third of the size of a tennis court, enclosed by glass at the back and mesh at the sides, with a tennis-style net across the middle. The defining rule: after the ball bounces on your side, it may strike the glass and still be in play — you can hit it off your own wall to keep the rally alive, and players at elite level even run out through the door to retrieve balls heading past the court. The walls turn defence into a playable position; a shot that would be a winner on a tennis court frequently comes back off the glass.

Doubles only, underhand serves

Padel is played almost exclusively as doubles, and the serve is underhand, struck below waist height after a bounce, diagonally into the service box. Two serve attempts, tennis-style. The doubles-only design is not an oversight: the court's compact size means four players create the angles and wall interactions that make the game work, and the social format is a large part of why club waiting lists have formed from Madrid to Miami. The sport's global growth — the International Padel Federation counts play in more than 140 countries — is documented on Wikipedia's padel entry.

Scoring it already knows

If you have ever watched tennis, you can keep padel score: 15, 30, 40, game, with deuce and advantage at 40–40, sets of six games and tiebreaks at six-all. Padel deliberately kept the tennis scoring system rather than inventing its own, which removes the last barrier for converts — the unfamiliar part is the court, not the scoreboard. The logic of love-15-30-40 itself is unpacked in tennis scoring explained.

Where it fits in the racket boom

Padel's rise has run in parallel with pickleball's, and the two are often confused by outsiders despite different courts, balls and scoring. The American game's rules are in pickleball, explained, and the full comparison — walls versus kitchen, tennis scoring versus side-out scoring — is in padel versus pickleball.

Sources

All explainers All of BRYME Sport