HYROX, Hybrid Athletes and the Nutrition Mistakes Costing You the Race – With Dr Kelsie Johnson

HYROX, Hybrid Athletes and the Nutrition Mistakes Costing You the Race – With Dr Kelsie Johnson

From Simon Ward, Be Battle Ready - The podcast for strength, resilience, and longevity by Simon Ward

May 20, 2026 · 1h 15m · Episode 474

About this episode

Dr Kelsie Johnson discusses nutrition strategies for hybrid athletes competing in HYROX and triathlon.

Thinking about adding HYROX to your training? Or already racing and wondering why your nutrition isn't translating into performance? Dr Kelsie Johnson is a nutrition and performance coach who works with hybrid athletes: people combining serious strength work with endurance sport. With a PhD in nutrition and muscle mass, experience as an S&C coach at Aston Villa Women's, and a background in triathlon and HYROX herself, Kelsie brings both the science and the real-world application. In this episode we dig into what hybrid training actually looks like in practice, why carbohydrate periodisation is the biggest gap she sees in athletes, how to fuel for a HYROX race depending on your start time, and why doing both triathlon and HYROX in the same block is a recipe for burnout. If you've been guessing with your nutrition and hoping for the best — this one's for you. 5 KEY POINTS Don't run HYROX and triathlon simultaneously — use HYROX as your off-season focus instead. Carbs, not protein, are the missing link — most athletes have protein nailed but aren't periodizing their carbohydrate intake around session demands. HYROX is 60–70% running at high intensity — fuelling during the race…

People in this episode

Host: Simon Ward

Guest: Dr Kelsie Johnson

Topics covered

  • HYROX
  • nutrition
  • hybrid athletes
  • performance coaching
  • carbohydrate periodisation

Keywords

  • HYROX
  • nutrition
  • hybrid athletes
  • carbohydrate periodisation
  • performance coaching

Mentioned in this episode

Organizations: Aston Villa Women's

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