Marshes Instructors
JON STEVENSON
GOLF DIRECTOR
Jon is widely recognized not only as a skilled instructor but as a true coach—one who builds lasting connections with his students and delivers impactful, technology-driven instruction. Leader in TrackMan launch monitor data and an advanced understanding of club fitting dynamics, Jon offers an elite-level coaching experience that bridges feel with fact.
A leader in interpreting Face-to-Path relationships and ball flight laws, Jon empowers golfers by breaking down complex metrics into clear, actionable insights. His ability to translate numbers into performance gains has made him a go-to expert for players seeking measurable improvement. From beginners to aspiring professionals, Jon tailors his coaching programs to suit all ages and skill levels. Whether refining swing mechanics or optimizing equipment through precise fitting, his comprehensive approach ensures every student leaves more informed, more confident, and better equipped to reach their goals.
Customized coaching and club fitting sessions are available upon request.
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 GOLF 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.