Carlos Alcaraz's racquet and string setup, decoded

The racquet Carlos Alcaraz actually plays with isn't the one in the Babolat shop window. It's a Pure Aero VS pro-stock — a tighter, denser-feeling cousin of the retail Pure Aero — wearing a paint job that makes it look like the frame your local pro is trying to sell you.

That gap between what's painted on the throat and what's underneath is the whole reason this piece exists.

The setup, at a glance

A short history of how we think we know this

It's worth tracing the chain, because the belief is firmer than the evidence underneath it.

The original public anchor is mundane: retailer listings ( being the cleanest example) selling "Carlos Alcaraz pro player" bundles built around the Pure Aero frame, RPM Blast 16, and a tension band in the mid-50s. That's a vendor describing a sponsor-aligned kit, not a stringer's logbook.

Layered on top, you get racquet-bag photos from broadcasts — the stencils on his strings are unambiguous Babolat RPM Blast — plus the occasional Babolat marketing line and the odd quote from his team. None of those, on their own, would tell you the frame is a VS rather than the retail Pure Aero. What pushes the consensus there is a separate cottage industry: pro-stock spotters comparing bumper guards, throat shapes, and grommet patterns on close-up TV shots, and matching them against the Pure Aero VS mold that Babolat keeps largely off retail shelves. That work is good, but it's done by enthusiasts, not by Babolat.

So when we say "Alcaraz plays a Pure Aero VS," we mean: the retailer-listed spec gives us the family, broadcast photos confirm the cosmetic, and pro-stock forums make the VS-vs-retail call. Each link is reasonable. None is an official spec sheet, because Babolat doesn't publish one. We'd guess the belief is right. We'd also note that the belief is one well-sourced rumour and a lot of repetition.

Specific numbers — the lead tape weight, the exact balance point, the grip build-up — are not publicly known. Anyone quoting them to three significant figures is filling in blanks.

The frame

The Pure Aero VS, in the pro-stock layout most associated with Alcaraz, is a 98 sq in / 16x20 frame — denser pattern, smaller head, and a flatter beam than the 100 sq in retail Pure Aero most club players know. The retail Pure Aero is a spin-forgiveness racquet built around an open 16x19 pattern; the VS is closer to a control frame that happens to come from the Aero family. They share a name and a paint job. They don't share a feel.

Customisations on top are where pro racquets always diverge from anything you can buy. The listing and the wider pro-stock community agree Alcaraz adds lead tape at 3 and 9 o'clock for plough-through and stability, runs a leather grip rather than a synthetic, and finishes with an overgrip. The exact gram counts aren't disclosed, but the direction of travel is clear: he's making a 98-inch frame swing heavier and more polarised than it does out of the bag, which is consistent with how he hits — heavy through contact, with the racquet doing some of the work on second-serve returns when he's leaning back.

What he is not doing, on the evidence we've seen, is playing a frame that resembles the retail Pure Aero. The branding suggests one thing. The mold underneath suggests another.

The string

A full bed of Babolat RPM Blast 16 (1.30 mm), mains and crosses, at roughly 24–25 kg. That's the spec the retailer listing carries and the spec consistent with broadcast stencils.

A few things worth flagging. First, this isn't a hybrid. Plenty of Alcaraz's peers — Tsitsipas, Zverev at points — run a poly/gut or poly/multi hybrid for arm comfort and a little extra pocketing. Alcaraz, on what we can see, runs full poly. That's a choice you make when you want the string bed to behave the same way on every shot and you're not worried about your elbow telling you about it later.

Second, the tension band is moderate by tour standards. Mid-50s in pounds is well above the low-40s some clay-court grinders favour, and below the high-50s you'll see from flatter hitters chasing precision. It fits a player who wants the ball to come off with shape but doesn't want a trampoline. We've heard the common claim that his tension drops a kilo or two on clay versus hard courts; we'd treat that as plausible and unconfirmed in any specific number.

Re-string frequency isn't published. Tour norm for a top-ten poly user is every match, often every set on the serving side; assume something in that range.

What this tells you

The setup matches the game more than the marketing does. Alcaraz hits with enormous racquet-head speed and a lot of vertical brushing, but he also flattens out for winners and serves into corners that require a frame that holds its line. A 98 / 16x20 with lead at the sides and a full bed of stiff poly is a control-biased platform that rewards a player who can generate his own spin. The retail Pure Aero is the opposite trade — more forgiveness, less precision.

For a club reader, the honest read is: this is not a kit you'd want to copy directly. A full bed of RPM Blast 16 at 24 kg in a heavy, head-light 98 is famously hard on the arm and famously unforgiving on off-centre contact. It works for him because he swings fast enough to make the poly bite, and because he's customising weight onto a frame Babolat tuned for that customisation.

One small thing to try this week

If you currently play a retail Pure Aero (or any 100 sq in spin racquet) and you've been curious about the Alcaraz idea, don't change frames. Drop your usual tension by 1 kg / 2 lb on your next restring, and ask your stringer to put RPM Blast — or any shaped co-poly in 1.25 mm — in the mains only, with whatever you normally use in the crosses. You'll get a sliver of the bite Alcaraz is chasing, without committing your elbow to a full-bed poly experiment you can't easily reverse.