Lag King

LagKing is a golf practice brand focused on improving putting distance control and making practice more engaging. Its main product is the LagKing gate, a hand-built, individually tested training device priced at $199.99. Used with a golfer’s own ball, it measures ball speed with approximately 0.1% measurement precision and provides feedback on each putt’s start line. The accompanying phone and tablet app, included without a subscription, converts the measured speed into the estimated distance the ball would roll on a real green, based on a selected green speed. It also grades start-line accuracy and identifies the side of a miss.

LagKing can be used on carpet, putting mats, or putting greens, with no special mat required. The brand positions the gate as a compact alternative to unmeasured practice aids and larger camera-based simulators, helping golfers rehearse longer lag putts in limited space. The app supports practice modes, virtual putting courses, leaderboards, and friendly competition.