Private Golf Lessons & Coaches in Duarte, CA

David Byrne is an internationally experienced PGA Professional and Golf Performance Coach, bringing over 25 years of elite coaching expertise across the United States and Europe. Originally from Ireland, David is a dual member of both the PGA of America and the European/UK PGA, a distinction that reflects his global perspective and deep-rooted knowledge of the game. Known as “The Golf Whisperer,” David has built a reputation for transforming players of all levels—from complete beginners to elite amateurs and touring professionals—by simplifying the golf swing and delivering measurable, lasting results. David holds a Master’s degree in Sports Psychology, giving him a unique edge in performance coaching. He integrates mental conditioning, focus training, and competitive mindset development into every lesson, helping players not only improve technically but also perform under pressure. His coaching philosophy blends athletic movement, body-driven mechanics, and efficient ball striking, moving away from overly technical instruction and toward a more natural, repeatable swing. In addition to his coaching career, David is a published author and co-creator of the golf book “The Swing,” where he shares his insights into simplifying the game and unlocking peak performance. His background also includes experience as a college-level coach, further strengthening his ability to develop players in structured, high-performance environments. A firm believer in combining tradition with innovation, David utilizes advanced technology such as TrackMan, GCQuad, and high-speed video analysis to provide precise feedback and accelerate improvement. He also incorporates golf-specific fitness and mobility training, ensuring his players develop strength, flexibility, and durability to support a powerful, efficient swing. David’s coaching covers all aspects of the game, including: Full Swing (Driver & Irons) Short Game & Scoring Course Management & Strategy Mental Performance & Golf Psychology Competitive Player Development Golf Fitness & Movement Training A former Irish Sports Writers Pro-Am Champion (2016) with a sub-par winning performance, David combines competitive playing experience with world-class coaching knowledge. Now based in Santa Monica, California, David works with dedicated golfers seeking to elevate their game, lower their scores, and play with clarity, confidence, and consistency.

"I was only fortunate enough to know and work with David Byrne for a little over a month before he relocated to California, but that short time made a lasting impact on my game. I truly enjoyed his passion for golf and his genuine desire to help players get better. David often went out of his way to coach me between lessons whenever he wasn’t already busy teaching others—something I greatly appreciated. At 67 years old, I’m not looking to completely rebuild my golf swing, and David understood that from day one. His approach focuses on helping you find a swing thought that works for your swing, rather than forcing a onesizefitsall method. He helped me understand my swing plane and path, and how to consistently get into the right position before impact. After that, his favorite encouragement was always: ‘Turn the corner!’ And it worked. David is a talented instructor, an insightful coach, and an allaround good person. And watch out for his son—just a wee lad with a fabulous golf swing already! David’s passion clearly runs in the family.

Welcome to Golf Lessons by coach Kollar, where passion meets precision. Mile Square Golf Club in Fountain Valley is my home course, where I’ll often be found, sharpening & working on my game. As a trained golf instructor, I specialize in offering a personalized swing and short game lesson in golf. Whether you're a beginner, eager to learn the basics and fundamentals of the game, or intermediate player aiming to refine your overall golfing ability, the lessons I implement are designed to enhance your overall golf game, while most importantly helping you to enjoy the time you spend practicing. As a graduate of Golf Academy of America, Carlsbad, California (unfortunately no longer in business), I studied the golf swing, psychology of golf, and complex teaching methods as well as golf game management. I also learned how to build and assemble golf clubs, as well as expanding my knowledge on the vast and complex rules of golf. During my 2 years at GAA, beyond my studies, I competed at a collegiate level, making the competitive Golf Team each semester I attended. I came to understand that there are no two identical golf swings. My job is to influence you to find the mechanically correct way to improve your swing and develop your short game, to help you enjoy golf more than you ever have!

"That lesson sparked a fresh grip change and clear goals, plus I can feel the swing staying steadier. A few head-still, weight-shift drills will really lock it in, and I’m excited to continue.

Ever wonder what separates a good shot from a great one? With two decades of experience, including time as a Tour Pro, I've honed the skills and techniques to elevate your game. Let's work together to unlock your potential and make you the golfer you always dreamed of being.

"The lesson was quite helpful, especially as John was straightforward and engaged throughout, which I appreciated. Still, I think there's room to explore more drills next time to really refine my putting.

20+ years golfing. 7 HCP. I love using technology to improve in golf. Let's work on the fundamentals.

"John was amazing! Very easy going, and his knowledge and instruction were top notch. I would recommend and have done to many of my friends about his services. Thank you again John I cant wait to put my new skills to the test on the course!

I transform swings into reliable performance with a patient, analytical approach. I have taught golf for many years, blending biomechanics, course strategy, and positive coaching to elevate players of all levels, while keeping lessons engaging and enjoyable.

PGA Class B Callaway Master Club Fitter Certified Taylor Made Kingdom Fitter Titleist TPI Level 1 10 plus Years retail club fitting. Smooth teaching style. Will travel Success and growth is my goal for all my students.

"I've been taking lessons from Christian for a couple of years. I was able to make varsity and I will be getting a playing scholarship from a D1 school because of his attention to detail of my game and my goals.

With over 25 years of playing experience, I teach golfers of all skill levels with a strong focus on fundamentals. My coaching journey began with the PGA Junior League and Nike Golf Camps, helping junior golfers build confidence and proper technique. Whether you’re a beginner or an experienced player, my goal is to teach the game the right way and help you improve with confidence and consistency. Most importantly, HAVE FUN!

"“I’ve been playing golf for over 10 years, and as an intermediate player, I was looking for a coach who could take my game to the next level. For the past three years, I’ve worked with Steven every week, either by traveling from Arizona for in-person lessons or through online coaching. His attention to detail, ability to identify small swing changes, and personalized approach have helped me continue improving year after year. No matter how I train with him, every lesson is productive and gives me something I can immediately take to the course. Steven is an outstanding coach, and I’d highly recommend him to golfers of any skill level.”

Driven by a lifelong love of the game, I offer 20 years of golf instruction. As a Pro golfer, I bring high-level expertise to help students unlock their potential. My approach blends technique with tailored strategies for lasting improvement.

"I am Cody. I play golf with my dad and my dad wanted me to play in high school so Coach Mario has helped me become a varsity golfer as a freshman.

Unlock your golfing potential with personalized guidance. As a fmini-tour competitor with 10 years of teaching experience, I tailor my approach to help you achieve your goals. Expect a focused and fun learning environment.

"Cory was very knowledgeable! He broke down the basics of my swing and how to improve. I appreciated the data and comparison videos from each lesson!

Hi I’m Ronald! I am an incoming college freshman who is trying to uplift and help any golfers who are not yet confident with their game. I just came off of 4 years of Varsity high school golf experience and 3 years straight of division 1 high school competition experience. This past year my team was ranked in the top 10 in CIF-SS playing the best of the best teams in California. My handicap is a 1.4 overall on USGA. However, this past season of high school golf I had a handicap of +1.085 on CIF-SS through ~30 matches. I was also within the top 150 out of 3,670 listed CIF-SS high school golfers. I have experience coaching peers new to the game and assisting fellow teammates who already understand the game. I provide valuable feedback and knowledge of your swing, short game, and putting. Not only that, but we will dissect course management and mental skills in order to shave off some strokes. Let’s get to work!