TheStack™ | Golf Swing Speed Trainer |…
At $299, it's a premium investment, but you're paying for a full-year app membership, 60+ instructional videos, and a training system backed by a 55,000-user dataset—not just a weighted club.
What it is
TheStack is a weighted golf trainer that uses adjustable overload and overspeed training to build swing speed—backed by data from 55,000+ users showing an average 10.1 mph gain. It's for golfers who want measurable distance gains, from weekend players to serious competitors.
Why it keeps winding up in carts
64 reviewers rated it 4.5 stars, and the numbers behind it are substantial: analysis of over 35 million swings from more than 55,000 users documents average speed gains of 10.1 mph.
The pro's secret weapon, now in your hands.
★ 4.5 from 64 ratings
We only hang a piece once the rating history is deep enough to mean something. This one clears that bar on volume; the written breakdown below is where the detail sits.
Based on 64 Amazon ratings.
Serious swing training for golfers ready to dial in speed with real data.
TheStack turns swing training into a measurable, coach-guided process—no guesswork, just weighted overload work and an app that tracks every rep.
Golf training aids often promise distance, but TheStack backs its approach with hard numbers: a dataset of 35 million swings and 55,000 users as proof of concept.
What we looked at
- 01Adjustable Overload Training 30 weight options
You get precision tuning rather than a one-size-fits-all stick. The 30 adjustable weight combinations let you dial in overload (heavier) or overspeed (lighter) work based on your swing phase and goals. This specificity is what separates systematic training from casual practice.
- 02App & Coaching 1-year membership included; 60+ expert videos; performance tracking; putting trainer (iOS only)
The hardware is half the story. TheStack App coaches you through timed sessions, logs personal bests, and compares your data to other users. You also get 60+ videos on swing mechanics and speed drills curated by a biomechanics expert. Stack Putting adds short-game work with guided sessions and tendency analysis.
- 03Proof & Endorsement Used by Matt Fitzpatrick (2022 US Open winner); endorsed by Golf Digest instructors Mark Blackburn and Chris Como
TheStack isn't a celebrity gadget—it's a tool trusted by tour pros and the coaches who shape them. The endorsement carries weight because it comes from people paid to find what actually works.
Specification & fit
- Who it is forGolfers committed to measurable improvement who want coaching and data alongside the training aid itself; best suited for those with iOS or Android and the discipline to follow structured sessions.
- Trusted By Top Pros And CoachesUsed by MATT FITZPATRICK to gain the speed necessary to win the 2022 US OPEN and trusted by Golf Digest’s top instructors, MARK BLACKBURN and CHRIS COMO as the top golf swing trainer for gaining distance.
- PROVEN SPEED GAINS VIA SCIENTIFIC RESEARCH: An analysis of over 35 MILLION SWINGS from more than 55,000 USERS shows average speed gains of 10.1 mph. TheStack is an ideal training tool for golfers seeking measurable, lasting results.
- 30 WEIGHT OPTIONS FOR PRECISE TRAINING: TheStack is engineered with 30 adjustable weight combinations, allowing PRECISE OVERLOAD AND OVERSPEED training that targets your specific needs to maximize training efficiency.
- AwardWINNING APP WITH PERFORMANCE TRACKING: TheStack App, available on iOS and Android, COACHES you with timed sessions, TRACKS your personal bests, and COMPARES you to other Stackers. A 1-year membership to the App is included with purchase.
- On the labelSold on Amazon by The Stack System. Price and availability are set by Amazon and change without notice.
