Quick answer: The Selkirk Boomstik ST is the follow-up to the original Boomstik power paddle. It went on sale November 10, 2026 for $350, in elongated and widebody shapes, and adds a new grit, a grooved perimeter and adjustable edge weights to the same 16mm foam core.
The 30-second version
- Price: $350 on Selkirk’s own store, $17 above the original Boomstik’s $333 list price in our catalog.
- What’s new: InfiniGrit Ultra surface, a Sharktooth perimeter groove (the “ST”) and an adjustable MOI weight system.
- What’s the same: 16mm PureFoam core with an EVA ring, about 8.0 to 8.2 oz, two shapes.
- The catch: every performance number so far comes from Selkirk. No independent lab has published ST measurements yet.
What is the Selkirk Boomstik ST?
The Selkirk Boomstik ST is Selkirk’s second-generation Boomstik, a full-foam power paddle. The Dink’s October 30 first look says the “ST” stands for Sharktooth Groove Technology and that the original Boomstik launched in August 2025, about 14 months before this one.
Selkirk’s page lists five colorways (Black Red, Blue, Gray and two limited options) and a Limited Lifetime Warranty in the U.S.
What changed from the original Boomstik?
Three things changed, and the core stayed the same. Here is what Selkirk says each one does:
- InfiniGrit Ultra: a new surface that Selkirk says is USAP-approved and has “4x more friction for spin” than the original InfiniGrit. The page gives the second figure two ways: “50x the texture additive” in the description and “50x the texture hardness” in the feature list.
- Sharktooth Groove: a perimeter groove that Selkirk says lets the face “bite the ball” for more dwell, sharper dips and better resets.
- Adjustable MOI Tuning: the red edge weights from the original are now adjustable by hand. Selkirk says they won’t shift during play.
- Unchanged: the 16mm PureFoam BoomCore with an EVA Power Ring, which Selkirk says has “no core crush, no break-in period.”
Selkirk Boomstik ST specs: elongated vs widebody
The two Boomstik ST shapes weigh the same but swing very differently. The table compares Selkirk’s published “as sold” numbers for the ST with Pickleball Studio’s lab numbers for the original Boomstik, which we already carry in our paddle database.
| Spec | ST Elongated | Original Elongated | ST Widebody | Original Widebody |
|---|---|---|---|---|
| Swing weight | 115 ± 2 | 118 | 110 ± 2 | 113 |
| Twist weight | 7.0 ± 0.2 | 6.91 | 7.6 ± 0.2 | 8.21 |
| Weight (oz) | 8.0 to 8.2 | 8.27 | 8.0 to 8.2 | 8.49 |
| Length / width | 16.5 x 7.45 in | 16.5 in | 15.95 x 8 in | 16 in |
| Handle | 5.8 in | 5.8 in | 5.6 in | 5.5 in |
| Core | 16mm | 16mm | 16mm | 16mm |
How to read it: the sources measure differently, so small gaps are noise. The widebody’s twist weight is the one gap that clears Selkirk’s own ±0.2 tolerance: 7.6 against 8.21. My read is that the ST widebody ships a little less forgiving on off-center hits than the original measured, unless you move the weights. Our twist weight guide and swing weight guide explain what those numbers mean on court.
Which Boomstik ST shape should you buy?
Pick the shape for how you play, not for the grit. The elongated ST suits singles players and baseline drivers who want reach and the heavier swing weight (115). The widebody ST suits doubles players at the kitchen: it swings quicker (110) and is more stable on mishits (7.6 twist weight).
Our elongated vs widebody guide, the Paddle Finder and our Selkirk widebody story can help.
Is the Boomstik ST legal for tournaments?
Selkirk says the InfiniGrit Ultra surface is USAP-approved. Before a sanctioned event, check the exact model on the USA Pickleball approved paddle list. Our 2026 paddle rules guide explains the difference between USAP and UPA-A approval.
Is the Boomstik ST worth $350 for a New England player?
Only if you already like heavy, powerful full-foam paddles. At $350 it sits at the top of the market. Our guide to expensive paddles covers what that money does and doesn’t buy, and the foam-core roundup lists cheaper options.
One point in its favor up here: when we read 12 brands’ warranties for our paddle warranty guide, three of them excluded play below 40°F, and Selkirk’s lifetime warranty wasn’t one of them. Boston has about 48 days a year with a high below 40°F. My read: until independent lab numbers come in, the original is the safer buy for most rec players. Selkirk’s store now lists the LABS Project Boomstik from $250.
FAQ: Selkirk Boomstik ST
When did the Selkirk Boomstik ST come out?
It went on sale November 10, 2026, about 14 months after the original Boomstik launched in August 2025.
How much does the Boomstik ST cost?
$350 on Selkirk’s own store, in either shape.
What does ST stand for on the Boomstik ST?
Sharktooth Groove Technology, a groove around the face’s perimeter that Selkirk says increases dwell and spin.
How much does the Boomstik ST weigh?
Selkirk lists an average of 8.0 to 8.2 ounces for both shapes, with a 16mm PureFoam core.
Is the Boomstik ST better than the original Boomstik?
It has a newer grit, a perimeter groove and adjustable weights. No independent lab has published ST measurements yet, so the size of the improvement is still Selkirk’s claim.
