Mental Performance & Mindset Coach

Train the mind behind the performance.

One-to-one coaching for high performers and athletes who want to master the mental side of their sport or business. Grounded in psychotherapy, not pep talks.

BA (Hons) Social Care · Grad Dip Psychotherapy (AUT, NZ) · MSc Pluralistic Counselling & Psychotherapy (IICP)

Owen Costello, mental performance and mindset coach
Owen Costello Mindset Coach

Most plateaus aren't physical. They're the doubt, the overthinking and the noise that shows up the moment it matters most. That's the part we train.

01 Who it's for

Built for people who perform under pressure.

i

Athletes & competitors

Quiet the mind, manage the pressure, and perform when it matters most.

ii

Founders & leaders

Your business grows to the level of your leadership. Think like the leader your future requires.

iii

Driven professionals

Break self-doubt and step into decisive action. Build the inner advantage.

02 The approach

The work goes deeper.

Owen is a qualified psychotherapist and counsellor as well as a mindset coach. The work doesn't stop at motivation — it gets to what's actually driving how you show up.

01

Awareness

Notice the thoughts, patterns and reactions driving your behaviour.

02

Understanding

Discover why they exist and how they're shaping your decisions.

03

Choice

Respond intentionally instead of reacting automatically.

03 The programme

The Mental Performance & Mindset Programme.

How it works

  • Two one-to-one sessions a month — slower-paced, focused, no fluff.
  • Optional homework between sessions to keep the work moving forward.
  • Fully online, fitted around training, work and life.

What you'll work on

  • The beliefs and patterns underneath the performance.
  • Overthinking and the noise in your mind.
  • Topics specific to you and your performance.

You leave making decisions from a place of strength, not fear.

Owen Costello mid-race on a street course in Ireland

“A genius for seeing what's hidden beneath the surface — and helping you untangle it with compassion and clarity.”

Paul · Coach · London
Owen Costello looking out over a harbour
04 About Owen

Real psychology, applied to performance.

Owen Costello is a mental performance and mindset coach with a Master's in Pluralistic Counselling and Psychotherapy from the Irish Institute of Counselling and Psychotherapy. He works with athletes, founders and ambitious professionals on the mental side of performance — confidence, pressure, focus, and the beliefs sitting underneath them.

His approach is to help you discover your own solutions, through techniques grounded in psychotherapy and counselling rather than motivation for its own sake. The aim isn't a temporary lift or relief. It's lasting change in how you think, perform and handle the difficult moments.

  • BA (Hons) Applied Social Studies in Social Care — AIT
  • Graduate Diploma in Psychotherapy — AUT, New Zealand
  • MSc Pluralistic Counselling & Psychotherapy — IICP
  • One-to-one, online, worldwide
05 Worldwide

The work travels.

Every session is one-to-one and fully online. Owen has worked with clients across eight countries — fitted around seasons, schedules and time zones.

06 In their words

The work, from the people who did it.

“Owen was picking up on small things I was saying, or not saying, and getting me to look at things in a different way. I raced at the Hyrox World Championships and used the mindset tools he gave me to prepare. It stood massively to me on race day. When the negative thoughts came, I was more than prepared, and I got myself back into a positive state of mind.”
Conor Hyrox World Record Holder · Ireland
Conor and his doubles partner on the top step of the Hyrox Birmingham podium Conor and his doubles partner holding Ireland shirts at the Hyrox World Championships in Stockholm
“I had tried to go under 3 hours in the marathon on multiple occasions and realised I had hit a mental wall. Owen helped me explore the connection between my mental wellbeing and endurance performance. Since then I have done sub 3 hours, pushed myself to 120km in a backyard ultramarathon and run a 70km trail event in Patagonia with 4,000m of elevation gain. I could not have done this alone.”
Pete Builder · Auckland, NZ
Pete crossing a footbridge during a trail ultramarathon in a New Zealand gorge Pete running through the finish of a muddy marathon
“As a competitive triathlete I'd struggled with self-doubt, race-day nerves and pressure. Owen helped me build a stronger mindset and a healthier relationship with competition — approaching races with confidence and clarity rather than anxiety and overthinking. During our time working together I've reached some of the highest performances of my career, including qualifying for the Half Ironman World Championships, where I'll have the honour of representing Ireland.”
Ed Competitive Triathlete · Ireland
Ed finishing an Ironman 70.3 with the Irish flag raised Ed celebrating on the Ironman 70.3 finish straight, Irish flag in hand
“I trained for and ran a marathon — not just the physical challenge, but proving to myself I'd built the mental strength to keep going when things get tough. Around the same time I got the biggest promotion of my career. Real proof I'm showing up differently now, with more confidence and clarity.”
Andy Sales Manager · Belfast
“I expected I'd have to force daily practices into an already busy life. I was wrong. Twice a month I get to reflect, debrief and hold space for myself. My emotional intelligence has levelled up.”
Enda
“Where I am now is almost unrecognisable. I make decisions from a place of strength rather than fear. The shift has been genuinely life-changing.”
Michael
“I was stuck, low and full of regret. Now I have a clearer mindset — slowing things down, staying present, managing my own patterns in a practical way. It's made a real difference to my confidence.”
Patrick
“Owen helped me get my mindset right while starting a new business — a balanced, educated approach to decisions and motivation. I couldn't recommend him highly enough.”
Gareth
“A safe space to open up without judgement, and realistic tools for anxiety and stress in everyday life. A significant improvement in my wellbeing.”
John
“One of the best investments I've ever made in myself.”
Andy
07 Get started

Ready to train the mental side?

Book a free intro call. No pressure and no pitch — just a conversation about where you're stuck and whether this is the right fit.

Book a free intro call

Prefer email? owen@owencostellomindset.com