Diadem Sports

Diadem Sports For the love of the sport, for the thrill of the match
🔹🔷🔹 Star Core Technology is constructed with a patent pending hexagram cross section.

This technology uses a six-pointed geometric cross section that equally distributes contact between strings, thereby minimizing friction significantly to allow for explosive snap back. At the same time the star shape provides a larger surface area creating more bite on the ball at impact to achieve maximum spin potential.

No compromises. Just a frame built around the way Bublik plays the game.
09/04/2026

No compromises. Just a frame built around the way Bublik plays the game.

09/01/2026

New York, from his side of the net.

Step inside Bublik’s POV as he practices at the US Open with Project Bublik.

Where tennis takes center stage, Diadem is there.
08/30/2026

Where tennis takes center stage, Diadem is there.

Wishing Elina Svitolina a strong start as she steps onto the courts in New York. Tune in tonight!
08/30/2026

Wishing Elina Svitolina a strong start as she steps onto the courts in New York.

Tune in tonight!

08/28/2026

Bublik’s game. Bublik’s frame. 💫

Going into Project Bublik, we knew the racket had to feel like Alex before anything else. He's played a blacked out fram...
08/26/2026

Going into Project Bublik, we knew the racket had to feel like Alex before anything else. He's played a blacked out frame for years, so we went back and forth on switching it up. The more we talked, the more we agreed black is what makes it feel like Bublik, even while we do something totally new with it.

Gold was the fun part. We don't use it anywhere else in our lineup, so the second you see gold, you know whose it is. That was the point, we wanted his racket to stand out the same way he does.

Then there's the line inside the throat, "sometimes I hit the yellow ball." If you follow Alex on Instagram you've seen it as his bio for years, so writing it on the racket felt more personal than a font.

The sleek design is intentional. It's a look into where the final racket is headed, and what it means to develop a frame curated for a pro.

08/24/2026

Every racket starts somewhere. Project Bublik started with Alexander at headquarters, meeting with our team way before there was a racket to show.

Designed and developed together.
This is Project Bublik.

08/21/2026

A moment years in the making. Alexander Bublik on his signature racket.

08/19/2026

It’s all in the details.⁠
⁠
Developed with Alexander Bublik. Built by Diadem. This is Project Bublik.

Address

200 Park Central Boulevard S/Ste 1a
Pompano Beach, FL
33064

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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