Boost ST — the string pinsetter for league and open play.

Name: Boost ST — USBC-Certified String Pinsetter
Brand: Brunswick Bowling

The USBC-certified, PBA-approved dual-purpose string pinsetter. Precise string-length optimization lets it switch seamlessly between league and open play — with far lower operating and labour costs than free-fall, and full Sync integration.

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USBC-certified PBA-approved Full Sync integration Lower cost than freefall

Boost ST in action

See the Boost ST run a full cycle on the lanes. Notice how quietly and quickly it clears and resets the pins, keeping both open play and league frames moving. It's the pinsetter most of our newest centers are now built around.

How the string pinsetter works

A look under the hood at the string mechanism that makes Boost ST so dependable. Far fewer moving parts than free-fall means less downtime, lower energy use and string that lasts 100,000+ frames. Your own staff can service it without voiding the warranty.

360 Controller

The Brunswick 360 Controller puts every lane at your fingertips. Staff handle modes, diagnostics and resets from a single screen, and switch between league and open play in seconds — so a small team keeps a busy center running smoothly.

Why centers choose it

The economics of string, the credibility of certification

Certified

USBC & PBA

USBC-certified and PBA-approved — competition-grade credibility for league play.

Dual-purpose

League + open

String-length optimization switches modes seamlessly for any session.

Lower cost

Less labour & energy

Simpler mechanics mean lower operating and staffing costs than free-fall.

Connected

Sync-integrated

Runs with the Sync platform and Brunswick Cloud for connected operations.

The detail that sets it apart

Engineered to earn, built to last

USBC- and PBA-approved — competition-grade, not just "entertainment".
Switchable string length 54"↔46" — set league or open play from the machine, independent of scoring.
Field-repairable electronics — your staff swap components without voiding warranty.
Diagnostics mobile app — error codes with resolution videos and instructions.
String lasts 100,000+ frames (5 mm) — low consumable cost.
One 3-phase motor, runs only when needed — lower energy use.
Non-chain ball accelerator + locking ball door — faster, fewer jams.
Optional event-reactive pin-deck LEDs — colour changes on strikes & spares.
Black pit hides the strings — an authentic bowling look.
Fits the existing pinsetter footprint — straightforward replacement.

The tech behind both

360 Controller & Pronto

360° Controller

One controller, easier service

A 7″ LCD touchscreen used on Boost ST and GS NXT — and available as an upgrade for the GS-X series.

Pronto · operations app

Maintenance in your pocket

App

Pronto

Real-time pinsetter alerts and step-by-step troubleshooting on any phone — for Boost ST, GS NXT and Duckpin Social, tracked in Brunswick Cloud.

Learn more →

A smart retrofit

Boost GS — string technology on your existing GS foundation

Boost GS places the new string-pinsetter technology directly onto the foundation of your existing Brunswick GS machines — reusing your current kickbacks, ball accelerator and ball cushion. It's the most accessible way into string bowling: far less to replace and an outstanding price-to-technology ratio, with the same low-maintenance, low-consumable benefits Boost is known for.

One small note: in this configuration the machine is not USBC-approved.

Boost GS — string pinsetter technology on an existing GS foundation

Reuses your GS kickbacks, accelerator & ball cushionLower cost of entryGreat price-to-technology ratio

A segment of its own

Duckpin Social — social gaming, not league bowling

Duckpin Social is its own category — compact, fast, social bowling for bars, eatertainment and boutique venues, powered by StringPin. A different experience entirely.

Explore Duckpin Social →

Pairs with third-party scoringNo vendor lock-inUpgrade at your pace

Open by design

Our pinsetter, your scoring — no problem.

Boost ST doesn't force a full switch. Keep your existing scoring system and add our pinsetters, or run Boost ST under Sync — the choice is yours. We create the best possible ecosystem, but never lock you in.

Prefer free-fall?

There's also the GS NXT

Prefer the classic free-fall bowling experience? The GS NXT is Brunswick's free-fall alternative — more compact and more energy-efficient than its predecessor, with a 2-year warranty.

Explore GS NXT →Compare both →