{"product_id":"thestack-speed-trainer-award-winning-app","title":"TheStack | Speed Trainer | Award Winning App","description":"\u003cp\u003eThe number-one speed training system in golf. Raise your speed ceiling and lower your scores with personalized training programs, guided workouts, and effortless data entry powered by TheStack App. Start training smarter to make more birdies, have more fun, and play your best golf.\u003c\/p\u003e\n\n\u003ch3\u003eTheStack Hardware\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5 CNC-milled Stack weights enabling 30 weight combinations between 0g and 300g\u003c\/li\u003e\n\u003cli\u003eDual-purpose weight case that doubles as a phone stand during training\u003c\/li\u003e\n\u003cli\u003ePrecisely engineered training club: Adult (41.5\") or Junior (38.5\") version selected at purchase\u003c\/li\u003e\n\u003cli\u003eSpeed radar required for training (Stack Radar recommended, sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTheStack App\u003c\/h3\u003e\n\u003cp\u003eRated 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 technology for non-integrated devices.\u003c\/p\u003e\n\n\u003cp\u003eMembership includes bundled access to Stack Putting (iOS), Stack Wedging (iOS), and the Learning Library. Train and track up to 20 local users under one login with Family Sharing. Connect with other Stackers using Share Codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe data behind it\u003c\/h3\u003e\n\u003cp\u003eThe 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 in 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, inventor on 125-plus patents).\u003c\/p\u003e\n\n\u003cp\u003eMatt Fitzpatrick (2022 U.S. Open Champion): \"I'll be honest. TheStack has worked wonders.\"\u003c\/p\u003e\n\n\u003ch3\u003ePlatform availability\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eiOS:\u003c\/strong\u003e Full features (Speed, Wedging, Putting, Learning Library). Requires iOS 15.0 or newer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAndroid (Beta):\u003c\/strong\u003e Speed + Learning Library available now; Wedging + Putting coming in a future update.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome Web (Beta):\u003c\/strong\u003e Speed + Learning Library available now; Wedging + Putting coming in a future update.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAre you a coach? A Coaches License is available separately for instructors.\u003c\/p\u003e","brand":"The Stack System","offers":[{"title":"Adult Version","offer_id":57260006965579,"sku":"TS1024A-1","price":299.0,"currency_code":"USD","in_stock":true},{"title":"Junior Version","offer_id":57260006998347,"sku":"TS1024A-2","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/0905\/6587\/files\/TheStack_Main_Image_No_Text.webp?v=1778788579","url":"https:\/\/elevationgolflab.com\/products\/thestack-speed-trainer-award-winning-app","provider":"Elevation Golf Lab","version":"1.0","type":"link"}