Marshes Instructors
JON STEVENSON
GOLF DIRECTOR
Jon is recognized not just as a skilled instructor, but as a true coach. Someone who builds lasting relationships with his students while delivering impactful, technology-driven instruction.
Specializing in Face-to-Path relationships and ball flight laws, Jon simplifies complex data into clear, actionable insights. His ability to turn numbers into real performance gains has made him a trusted resource for golfers of all levels.
Jon offers fully customized one-on-one lessons and precision club fitting sessions, designed to match each golfer’s unique swing, goals, and equipment needs. Every session is tailored to help you improve, gain confidence, and play your best.
In addition, fun and engaging clinic-style lessons are available
Whether you're looking for personalized coaching or a group learning experience, Jon delivers a comprehensive approach that helps every golfer succeed.
David McBain
HEAD TEACHING PROFESSIONAL
PGA of Canada Class “A” Member and 2025 PGA Ottawa Zone Junior Leader of the Year, Dave offers personalized golf instruction and coaching for both juniors and adults.
Philosophically, Dave focuses on movement of a golfer’s body and is very much attuned to physical capability and how to account for that during instruction. Known for a patient, encouraging teaching style, Dave emphasizes fundamentals, physical and mental readiness, smart practice, and on-course skills that help golfers improve faster and enjoy the game more.
DON RIOUX
TEACHING PROFESSIONAL
Don has been teaching golf since the opening of The Marshes Golf Club in 2002. He is a true educator and accomplished player, playing on the original Canadian Pro Tour. Don harnesses the power of communication, experience, and technology to help tap into the dormant talent in his students. He is one of the best-known instructors in the Ottawa area because he is so passionate about making a positive difference in each client he teaches.
Don teaches and coaches all skill levels with coaching programs available on request.
Fergus Barron
ASSISTANT GOLF PROFESSIONAL
After graduating through the PGA of Great Britain & Ireland, Fergus relocated to Canada in 2023, where he is now a proud member of the PGA of Canada.
Since turning professional in 2019, Fergus has developed a deep passion for both coaching and custom fitting. He combines technical expertise with a player-focused approach, aiming to deliver a comprehensive and personalized experience for every golfer.
Fergus is proficient with Trackman technology and is Quintic Ball Roll Level 2 certified—providing advanced insight into putting mechanics and ball performance. Whether working with beginners or experienced players, he is committed to helping golfers of all levels improve their game with clear instruction, data-driven feedback, and a holistic coaching philosophy.
Reggie Harmer
ASSISTANT TEACHING PROFESSIONAL
Reggie is a PGA of Canada Apprentice Professional specializing in competitive player development and swing performance for junior athletes and committed amateur golfers.
Currently completing Class “A” certification with a coaching specialization, Reggie focuses on helping each golfer develop a repeatable swing, a stronger competitive mindset, and a genuine enjoyment of the improvement process—on and off the course. With TPI Level 2 Golf and Level 2 Fitness certifications, Reggie connects swing mechanics with body movement to improve efficiency, power, and consistency.
As a TrackMan Level 2 certified coach, data-driven feedback is used to simplify concepts and accelerate progress in a clear and encouraging learning environment.
Troy Walker
ASSISTANT GOLF PROFESSIONAL
Troy, a new member of the PGA of Canada in 2024, moved to Ottawa from the Greater Toronto Area to pursue a career in golf. He is currently working toward achieving his Class A certification with a specialization in teaching.
Troy demonstrates a strong foundation in both the technical and mental aspects of the game, with a focus on delivering clear, personalized instruction that leads to lasting results.
His teaching philosophy is built around simplicity, consistency, and confidence. Troy takes pride in creating a welcoming and professional environment where improvement is intentional and progress is measurable. He works closely with each student to develop a clear plan, helping golfers of all levels build skills they can trust on the course.
Whether you’re new to the game or looking to refine your performance, Troy is committed to helping you reach your goals and enjoy the process along the way.