You're probably opening new cans too late. A can of padel balls lasts about one set if you play at an advanced level, one match if you're intermediate, and beginners can keep reusing it. It's the pressure that goes first, not the yellow felt. Pull the tab and the gas inside each ball starts leaking out through the rubber, whether you play or not, so last Tuesday's can is slower than it looks.
Here is the rule we give players:
Our take (Padel USA team): "Advanced players: open one can of balls per set, not even per match. After one set, the balls are dead, so you cannot know if a smash will go out por cuatro or come back into your court. Intermediate players: one can of balls per match is fine. Beginners: you can reuse balls."
(Por cuatro: the smash that bounces out of the court through the side door.) Once a can is past its set or its match, it goes in the drill basket.
New or sandy turf is the exception. There the felt goes first: it picks up grit, fluffs up and turns the ball heavy and slow within one session.
The back-glass test: when to replace padel balls
Hit an old ball firmly into the back wall and watch where it comes out. If it dies in the corner instead of coming back toward the service line, the can is done for match play.
The International Padel Federation uses a drop test. Dropped from 2.54 m (about 8 ft 4 in) onto a hard floor, a legal ball has to bounce back 135 to 145 cm, about chest height on most adults. You don't need a tape measure at the club: drop an old ball and a fresh one together from the same height, and if the old one comes up clearly short, it's done.
Flat balls wreck your defense
Most defense in padel happens after the back glass: you let the ball pass, it comes off the wall, and you play it from there. A flat ball doesn't come off. It drops in the corner, you dig it out late, and the lob you wanted to hit to the back fence lands around the service line, which is a gift to the pair at the net.
Then on Saturday someone opens a fresh can, and for the first few games every ball comes off the glass earlier than you expect.
How long do padel balls last in heat, cold and at altitude?
Altitude makes balls fly. Denver sits at about 1,600 m and Salt Lake City at about 1,300 m, and at that height a fresh can is fast and hard to keep in the court. The answer there is a slower ball, not an old one; we've had players at altitude write in asking exactly this.
The can tells you which ball is which. Wilson, for example, sells the Premier for heat, humidity, fast courts and altitude above about 600 m, and the Premier Speed for cold weather and slow courts.
Cold works the other way. Outdoors in a Northeast winter, even a new can feels flat from the first game, and an opened one goes dead fast.
Keep opened balls out of a hot car and a freezing garage. Pressurizer tubes slow the leak, according to the companies that make them, if you want a second session out of a can.
What a season of fresh balls costs
A can of Head Padel Pro+ or Pro S+ costs $7.49 on padelusa.com this November, and a box of 24 is $164.95, about $6.87 a can. Babolat's Court ball is within a cent of that.
Take a group of four that plays twice a week. On the intermediate rule, a new can every match, a box of 24 lasts about three months and the year costs roughly $715, or about $180 each. On the advanced rule it's two or three cans a match, so two to three times that.
Beginners who reuse balls spend a fraction of it. Regular groups and clubs ask us for case pricing for this reason.
The mistake we see most: tennis balls
The most common ball mistake among US players is a can of tennis balls. Tennis balls are a little bigger (6.54 to 6.86 cm across under ITF rules, against 6.35 to 6.77 cm for padel) and carry more internal pressure. They bounce too high off the glass, and every rally turns into a guess about where the ball will come out.
We also warn players about the racket itself. That higher pressure puts more stress on a padel racket's frame with every hit, and a tennis ball can crack the frame far more easily than a padel ball.
A new can per set, per match, or reuse
If you play advanced or competitive matches, open a new can every set. If you're intermediate, open one every match. If you're a beginner, reuse your balls, but retire one early if it stops coming off the back glass.
The reasons behind that ladder are in why open a new can of padel balls for every match. If you play at altitude or in the heat, buy a slower ball instead of keeping flat ones around to slow the game down.
Sources: FIP ball rules, padelusa.com prices (November 2026), and coaching notes from Xan Tafernaberry, Padel USA's padel pro.
