TheStack + Stack Radar Bundle
The complete Stack System: weighted training club, 5 CNC-milled stack weights (30 weight combinations from 0g to 300g), Stack Radar doppler launch monitor, and a 1-year membership to TheStack App with speed training, Stack Wedging, Stack Putting, and the Learning Library. Save 1…
| Hardware | Adult 41.5" training club + 5 CNC-milled weights |
| Weight Range | 0g to 300g (30 combinations) |
| Weight Case | Dual-purpose (weight case + phone stand) |
| Radar | Stack Radar included (Bluetooth, K-band 24 GHz doppler) |
| Speed Trigger | 25, 35, 45, or 55 mph (configurable) |
| App Membership | 1 Year (iOS full, Android Beta, Web Beta) |
| App Includes | Speed training, Stack Wedging, Stack Putting, Learning Library |
| Family Sharing | Up to 20 local users per login |
| App Rating | 4.9 stars, 5,500+ App Store reviews |
| Designer Credits | Dr. Sasho MacKenzie (PhD Biomechanics), Marty Jertson (former PING lead engineer) |
| Bundle Savings | 15%+ vs buying separately |
| Average User Gain | 10.1 mph clubhead speed (across 50,000+ Stackers) |
| Distance Potential Gain | 27.1 yards driver carry (average) |
Everything you need.
Ready out of the box. No extra accessories required.
- 1× TheStack training club (Adult 41.5")
- 5× CNC-milled Stack weights (30 weight combinations: 0g to 300g)
- 1× Dual-purpose weight case / phone stand
- 1× Stack Radar unit
- 1× Stylized Stack Radar carry case
- 1-Year Membership to TheStack App
- Bundled access to Stack Putting (iOS), Stack Wedging (iOS), and the Learning Library
Save 15% or more when you combine TheStack and Stack Radar for the complete game-improvement system. Hit it longer with personalized speed training, dial in your wedges with Stack Wedging, and make more putts with Stack Putting. Every part of The Stack System is built on science, backed by data, and designed to help you get the most from your practice.
TheStack Hardware
- 5 CNC-milled Stack weights enable 30 weight combinations between 0g and 300g
- Dual-purpose weight case that doubles as a phone stand during training
- Precisely engineered Adult 41.5" training club
- Speed device requirement: Stack Radar included in this bundle (Bluetooth connectivity, no-ball-contact swing speed capture)
TheStack App
Rated 4.9 stars with 5,500-plus App Store reviews. Adaptive speed training programs formulated by Dr. Sasho MacKenzie, golf's leading speed researcher. Guided workout timer for reps, sets, and rest intervals. Custom speed metrics to track your gains. Bluetooth connectivity to integration devices, plus hands-free voice entry for non-integrated devices. Connect with other Stackers via Share Codes.
Stack Radar
- Doppler radar measurement of swing speed (with or without ball)
- Ball speed, carry distance (estimated), and smash factor on struck shots
- Powers Stack Wedging gamified practice (iOS)
- Configurable speed trigger (25, 35, 45, or 55 mph)
- Temperature and altitude adjustment via the app
The data behind it
The Stack System represents the largest study into variable inertia weight training in golf. 75,000-plus dedicated users, 45 million swings recorded, and an average gain of 10.1 mph clubhead speed (equating to 27.1 yards of driver distance potential). Designed by Dr. Sasho MacKenzie (PhD Biomechanics) and Marty Jertson (lead engineer at PING for 20-plus years, six-time Major Championship competitor).
Matt Fitzpatrick (2022 U.S. Open Champion): "I'll be honest. TheStack has worked wonders."
