
The Precision Shot That Changed Golf Forever
In a shooting range hut by the sea, a teenage champion took aim at more than just a target. He aimed at a moment that would echo through six decades and revolutionize how golfers approach the most crucial shot in the game.
This is the story of how one perfect shot led to the creation of the Putter Key, a breakthrough golf training aid that's helping players around the world finally master the art of accurate putting.
The Moment That Started It All
David Englefield stood on a thin rubber mat, rifle pressed against his shoulder, legs splayed flat against the ground. The weight of his school's target shooting team rested on his final shot in the All-England competition. One bulls-eye would secure victory.
"Take a deep breath, hold it, relax the shoulders," he told himself. "Fix eyes directly on the black center of the bulls-eye. LOCK ON, black on black, fixed, the way a fighter pilot locks on the enemy."
The shot rang out. Dead center.
Glory. Victory.
But more importantly, a lesson in precision that would reshape golf putting forever.
When Lightning Strikes Twice
Fast-forward six decades. David found himself wondering for the hundredth time why even the world's greatest golfers still missed seemingly easy straight putts. Then, like lightning striking twice, the answer appeared from the mists of time.
"I understood in a flash that unless a putter initially went backwards in a dead straight line, in preparation for the forward motion, the chances of an accurate forward action would be greatly diminished," David recalls.
The shooting range lesson had returned with crystal clarity: perfect alignment creates perfect results.
Innovation Born from Lockdown
COVID-19 had the UK in lockdown, but David's mind was racing. His wife, ever the practical planner, had stockpiled months of cereal packets—perfect cardboard thickness for prototyping. For three months, David cut, shaped, and experimented with over a hundred design iterations.
Each cardboard cutout brought him closer to solving golf's most persistent problem: how to help golfers aim with the same precision he'd achieved on that shooting range decades earlier.
When lockdown lifted, David's first journey was to the post office. His prototype was heading to Alex Cardinal in the South of France, a golf coach whose credentials spoke volumes.
The Expert Who Changed Everything
Alex Cardinal wasn't just any golf instructor. With 35 years of international coaching experience, Alex had guided seven French multiple award-winning players and tutored junior world champions. His academies in France had become legendary training grounds for golf excellence.
When Alex's call finally came after two weeks of silence, David's heart sank at the words: "We have a problem."
But then came the twist: "It works."
The problem wasn't failure, it was success. Alex understood immediately that they had stumbled upon something revolutionary. "Lines on a putter don't show how to start the backswing," Alex explained simply. The Putter Key filled that crucial gap.
The Science Behind the Success
What followed was years of meticulous refinement. David's study became so cluttered with experimental prototypes that his wife gently suggested finding a larger workshop. Packages flew back and forth between England and France as the two perfectionists refined every component.
They tested base metals, aluminum, and countless attachment methods. True scientific research was commissioned to understand exactly why the Putter Key worked so effectively. The results validated what David and Alex already knew, they had created something that could transform putting accuracy.
A Star Is Born
The name came from David's wife, whose clear thinking had guided the project from the beginning: "You should call it PUTTERKEY." Simple. Perfect. The Key to putting and aiming accurately.
But a great product needs great execution, and that's where the story takes another remarkable turn.
The Dream Team Assembles
The Visionaries
David's son Marcus Englefield, co-founder of industry-leading VFX company Venture 3D, immediately recognized the Putter Key's potential. Working alongside his business partner George Lee, a USC graduate who had earned the prestigious Dari Award for Korean Businessman of the Year, Marcus understood that reaching millions of golfers worldwide required exceptional business acumen.
Their combined experience with brands like Nike, Red Bull, and major film studios brought world-class marketing expertise to the golf training aid.
The Business Mastermind
Lawrence Alioto stepped in as CEO, bringing seasoned business leadership to Putter Key LLC. But Lawrence's credentials extend far beyond the boardroom—he won the prestigious San Francisco City Junior Championship before being recruited to USC, where he graduated with a degree in economics. His return to competitive golf included playing in the U.S. Amateur and regional professional events. Lawrence understood both the business of golf and the passion that drives players to constantly improve their game.
The Golf Authority
No golf product is complete without authentic PGA expertise, and John Abendroth brought that in spades. As a former PGA Tour player and PGA Member, John co-founded Celtic Golf Management in San Francisco and spent 12 years as a full-time instructor.
His media presence was equally impressive—26 years co-hosting "Hooked on Golf" on KNBR 680 AM and the TV version on Fox Sports Bay Area. As an NCAA All-American at Weber State University and Athletic Hall of Fame inductee, John's credibility was unquestionable.
At the Olympic Club, where he holds the course record of 62, John served as vice chairperson of the 2012 U.S. Open. When John endorsed the Putter Key's effectiveness, the golf world listened.
The Champion's Perspective
Sara Sanders joined as Director of Sales/Operations, bringing both LPGA Tour experience and business acumen. A Stanford University graduate and All-American field hockey player, Sara transitioned to professional golf before moving into commercial real estate as First Vice President at The Staubach Company.
Her creation of Birdie Steps, a platform empowering women golfers, demonstrated her understanding of what golfers truly need to improve their game.
The Result: Revolutionary Putting Accuracy
With this powerhouse team behind it, the Putter Key has delivered results that speak for themselves. Golfers report consistently improving their putting scores by several strokes. The messages of joy and affirmation pour in from players who've discovered what David learned on that shooting range decades ago: perfect alignment creates perfect results.
Your Putting Revolution Awaits
The journey from a teenage rifle shooting champion to a revolutionary golf training aid proves that the best innovations often come from unexpected places. The Putter Key represents more than just another golf gadget, it embodies decades of expertise, scientific research, and unwavering commitment to helping golfers achieve the accuracy they've always sought.
Every putt you make carries the potential for that same moment of perfect precision David experienced on the shooting range. The difference is now you have the key to unlock it.
The team behind the Putter Key didn't just create a product, they solved a problem that has plagued golfers for generations. With their combined expertise in professional golf, business strategy, marketing innovation, and scientific research, they've delivered a training aid that transforms how players approach the most crucial shot in golf.
Welcome to the future of putting. Welcome to precision. Welcome to the Putter Key.
Ready to experience the breakthrough that's helping golfers around the world putt with championship-level accuracy? The key to your putting success is waiting.

Our Story (EXTENDED)
The vision and the team that created the Putter Key

The Precision Shot That Changed Golf Forever
Years ago, teenage marksman David Englefield lay on a shooting range mat, the weight of his team’s victory on his shoulders. One perfect shot—dead center—taught him a lesson that would echo for decades: precision changes everything.
Fast-forward to lockdown, and David found himself asking why even the best golfers miss straight putts. The answer hit him like lightning: alignment. Without perfect alignment, even the best stroke falters. Armed with cereal boxes and determination, David spent months crafting a solution.
A Revolutionary Idea Takes Shape
After countless prototypes, David sent his creation to Alex Cardinal, a world-class golf coach. The response? “It works.” Together, they refined the Putter Key, turning it into a tool that transforms putting forever.
A Team with Heart
Behind the Putter Key is a team of dreamers and doers—golf pros, business leaders, and innovators—united by a passion for the game. From PGA Tour players to marketing experts, each brought their unique expertise to make this vision a reality.
Unlock Your Potential
The Putter Key isn’t just a training aid; it’s a key to confidence, precision, and lower scores. Decades of passion and innovation have come together to help golfers like you master the greens.

