Potential to reality.


About Underpin

Mental performance coaching for professional golfers

We are working with players across all tours helping them to achieve greater levels of performance. Through our work together players have gained European Tour cards, competed in major championships and are rapidly progressing through the world rankings.
In 2021 we enjoyed two victories with Marcus Armitage at the Porsche European Open and Erik van Rooyen winning the Barracuda Championship on the PGA Tour.

Why Underpin?

Unlock your potential

Duncan McCarthy is a world-class mental performance coach who understands the needs of a player and how to get the best out of them. His role is to support, coach and direct mental performance, ultimately helping a player achieve their goals and set new ones.

The support he gives can be on training away from tournaments, helping to balance the demands of technical work, performance practice and rest/recovery. How a player reacts to good and bad performances is also a key part of Duncan’s role and to support them with the stresses of life on the road and the external issues that are an inevitable part of a professional’s life.

“The key to my work is dealing with emotions and feelings, helping players reach new levels of self-awareness and ultimately allowing players to take responsibility and accountability of their own performances.”

Meet the players

We work with outstanding and highly ambitious golfing talents

Erik van Rooyen – PGA Tour

  • "It's the best I've been mentally. I'm getting better with it every time I go out there."
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Marcus Armitage – European Tour

  • "Since starting work with Dunc again I climbed over 1200 spots in the world in less than 12 months. The work we do has such a big impact on my mental performance and my first European Tour win.”
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Ashleigh Buhai – LPGA Tour

  • "Since starting work with Dunc he has not only helped me with my on course mental approach but he is very aware of what we call the human behind the performance. I’m looking forward to the journey ahead."

Tom Gandy – European & Challenge Tour

  • “It’s a pleasure to work with Dunc. We are continually discussing areas of my mental performance to take my game to new levels. He is always there for direction, guidance and support. The way we work is varied but there are always clear messages for me to take away, implement and work on. I’m looking forward to more improvements."
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Craig Ross – Challenge Tour

  • "I'm really pleased with the work we have started. I am already seeing improvements in my performance & am excited to see the long term impact from working with Dunc."
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Charlotte Heath – England & Florida State University

  • "I’m really excited to continue my work with Greg, I’ve worked with him since June 2022 and noticed a huge difference on and off the golf course."

Conor O’Rourke – Challenge & EuroPro Tour

  • "The work I've done with Greg has been incredible. We have worked very hard around the idea of acceptance. It's really helped me to play golf in a more relaxed free state of mind and in turn has made for improved and consistent performance."
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Phil Geerts – Sunshine Tour

  • "I'm keen to see what our work can do for my performance. I can already see the benefits to the work we have started."
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Ashton Turner – EuroPro Tour

  • "Really enjoyed working with Greg since the start of the year, covered some really key areas that have enabled me to be a lot more positive and relaxed on the course no matter the performance. This has then had a knock on effect on my mind frame off course and being able to be much more in control of my emotions. Looking forward to future work together."
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Chris Maclean – Pro Golf Tour & EuroPro Tour

  • "Big love to Greg and Dunc for their help over the last year. We’re making some amazing strides, which has seen me win a few times this year, and it has helped to make me very excited about the future. Dunc is the best in the business at what he does."
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Enquire about working with us

Underpin Corporate Partnerships

A Corporate Partnership with Underpin delivers a range of benefits to help your business performance, to engage better with existing clients and reach new audiences. We'll work with you to create the perfect package.

Get In Touch

Get in touch to find out more about how a partnership with Underpin can impact your business.

We are Underpin

Greg Robertson

Managing Director

Greg is responsible for coaching players within Underpin, in addition to leading business strategy & growing the Corporate Partner network. He is also CEO of financial planning & wealth advisory firm Robertson Baxter. Greg has over 25 years of experience advising, mentoring & coaching individuals & has a passion & natural skill for helping others grow & develop themselves.

Greg plays off 3 at Huddersfield.

Duncan McCarthy

Performance Director

Duncan began his coaching journey 20 years ago and has been working with professional athletes for over 14 years, He has a remarkable track record of delivering success for his clients in many sports. He has seen those individuals go from youth academies to international appearances, from district to national level and from amateur through to major championships and main tour wins. He now solely works with our players at the highest level of the game.

A former professional and county player, Duncan now plays off +2.

Mark Townsend

Underpin Content

Mark has a long history working in the golf industry as a journalist. He brings his wealth of experience and knowledge to Underpin & the players. His work with leading magazines and players worldwide are highly regarded.

Mark is responsible for social media content for Underpin. He plays off 6 at Moortown.

Danielle Cotter

Business Manager

Danielle has successfully set up and run her own PR business, delivering high-profile events globally for travel and leisure clients. Dani helps organise our Underpin events and supports our team with all things travel, logistics, admin and bookings to allow them to focus on their job, the business and coaching.