For an episode of the Rox Lyfe podcast, we sat down with Kat Parnell in June 2026 to discuss her past season where she made multiple Elite 15 appearances this season and qualified for the 2026 HYROX World Championships in doubles alongside long-time friend Jade Skillen.
While Kat’s results have put her among the sport’s top athletes, much of our conversation focused on something deeper than race times. From overcoming an eating disorder and years of overtraining to redefining her relationship with performance and self-worth, Kat shared an honest look at the mindset changes that have shaped both her life and her racing…
From Football to Endurance Sport
Kat’s sporting background began long before HYROX. A self-confessed tomboy growing up in Suffolk, she played football at a high level, representing Ipswich Town before later playing for Colchester United and facing Arsenal in the FA Cup.
However, an eating disorder during her teenage years gradually pulled her away from team sports and into the world of endurance racing.
Over time, running became a major part of her life. She has now completed ten London Marathons and achieved a marathon personal best of 3:02, narrowly missing her goal of breaking three hours.
Becoming an Elite 15 Athlete
Kat’s rise in HYROX has happened quickly. This season she finished 6th in Melbourne, 7th in London and 10th in Warsaw in Elite 15 singles competition, while also qualifying for the World Championships in doubles alongside Jade Skillen.
What makes those performances even more remarkable is that, until recently, Kat had coached herself throughout her HYROX journey. That changed after the London EMEA Regionals when she began working with coach Lauren Calvert.
Realising She Was Overtraining and Under-Fuelling
One of the biggest themes from our conversation was Kat’s admission that she had spent years doing far more training than necessary. For a long time, her mindset was simple: “How much can I do today?”
She described weeks that could reach 25 hours of training, often with no complete rest day and very little focus on recovery. Looking back, she now believes much of that work was unnecessary. Lauren Calvert helped her recognise that she was doing a lot of “junk” training while neglecting recovery, nutrition and life outside sport.
The result has been a significant shift in approach. Kat now trains fewer hours, prioritises recovery more seriously and spends more time building relationships outside sport.
The Power of the Kat and Jade Partnership
Kat spoke fondly about her friendship with Jade Skillen. The pair have known each other since their football days and now compete together at the highest level of HYROX doubles racing.
According to Kat, that long-standing friendship creates a huge advantage in competition.
Doubles racing requires trust, intuition and an understanding of how your partner responds under pressure. Because they know each other so well, communication becomes almost automatic.
Clean Fuel vs Dirty Fuel
A memorable part of the conversation centred around a concept Kat described as “clean fuel” versus “dirty fuel.”
For years, she felt driven by what she now calls dirty fuel. This is the belief that success, performance or achievement must come first before you can deserve happiness, acceptance or self-worth.
She realised much of her sporting life had been built around chasing validation.
Clean fuel, by contrast, comes from a genuine love of the sport.
It means showing up because you enjoy the process rather than because you’re trying to prove something.
“Dirty fuel is driven through this kind of if I don’t achieve X, then I don’t deserve Y.”
The shift has changed the way Kat approaches racing. Rather than feeling pressure to prove herself, she now focuses on enjoying the opportunity to compete and seeing where that takes her.
Finding Self-Worth Outside Performance
One of the most powerful moments of the episode came when Kat reflected on the connection between identity, self-worth and athletic performance.
She spoke openly about growing up feeling different, struggling to find her place and searching for validation through achievement.
Over time she has learned that race results cannot provide lasting self-worth.
That understanding has helped her become both a healthier person and a better athlete.
“You can just do it because you love it, regardless of the result. Because you are enough.”
To check out the full interview, watch below or listen on the Rox Lyfe podcast.
