I work internationally with world-class high-stakes poker players and WSOP finalists. The gains that last aren't just in EV, they're in refined decision-making, composure under real risk, and routines that protect your mental health and your bankroll.
Book a Free Discovery CallI know the nosebleed poker world from the inside. My son, Daniel Merrilees, is one of the world's most feared high-stakes online cash-game players, who rose from $50 buy-ins to the highest online stakes in three years. He's a WPT Korea High Roller Champion and a former Elite Team Upswing coach.
I've seen the realities of high-stakes poker up close for years, the swings, the mental grind and everything it asks of a player away from the felt. So when a nosebleed player sits down with me, I already speak their language. I understand variance, tilt and EV, not from a textbook, but from lived experience.
I also work with Jason McConnon, one of the UK's most respected high-stakes cash-game specialists. Known as JASON.MAC100 online, he's the 2018 WSOP $10K Heads-Up Championship runner-up and an Upswing Poker coach. You can read his words on working with me below.
“After just 8 sessions, I've already had two major ‘aha’ moments that have directly impacted my mindset both on and off the tables. From a poker perspective, I've noticed clear improvements in my EV, decision-making clarity, and overall mental game. It's like the tilt filter has been upgraded — fewer leaks, sharper focus. But what really sets you apart is the holistic approach. It's not just about the cards or the strategy — it's about improving the whole player. I've seen positive ripple effects beyond poker: better emotional regulation, smoother relationships, and even my day-to-day life feels more balanced and less reactive. There's a sense of flow, both on the felt and in life. For any serious poker player looking to elevate their game and their lifestyle, working with you is +EV in every sense. Thanks again — grateful for the work we've done so far!”
“I work with Marnie to improve my performance as a professional poker player. My journey has taken me from improving performance to lifelong lifestyle changes. Performance improvements come from techniques including, but not limited to, breathwork, self-talk and visualisation. Marnie is highly intelligent, empathetic and speaks truth. Drawing from experiences in her own life, Marnie creates a comfortable environment to grow. I can't recommend Marnie enough.”
“I was originally recommended Marnie to improve my poker mental game, but she has proved to offer so much more. Marnie is very friendly and understanding and has helped improve my mental health, my focus, and most of all made me really grow as a person and mature. I have found our sessions very valuable at keeping me accountable, and she has really helped me optimise my life. Marnie is very flexible and has a wide range of expertise that can help in many areas of life. I look forward to continuing our sessions and growing with her.”
“I am a professional poker player who worked with Marnie to improve my mental game and psychology. I didn't really know what to expect, having had her recommended by a colleague of mine. She was easy to work with and I felt comfortable sharing and opening up. Working with her was incredibly beneficial for me, not only for my job but overall in life. The main work we did together was actually helping me to transition into becoming a parent and balancing that with my working life, as well as learning to take my physical health more seriously, which in turn allowed me to grow mentally and be so much happier as a person. Highly recommended!”
Apply for a free 15-minute discovery call. No pressure, no obligation, just a conversation about your game and whether we're a fit.