Your first HYROX doesn’t usually go wrong because you’re not fit enough. It goes wrong because you make stupid little mistakes that become very big mistakes after 60 minutes of racing. Here are the big ones. 1. Going Out Like a Lunatic The music’s banging, everyone’s flying and suddenly your 5K pace feels “comfortable”. It isn’t. Start controlled. You can always speed up. You can’t un-fuck a blown engine. 2. Not Running Enough HYROX has 8 × 1km runs. Yet somehow people still spend 80% of their training practising sleds and wall balls. It’s a running race with some horrible P.E in between. Train accordingly. 3. Using the Runs to Recover This is one of the biggest mistakes. Destroy yourself on a station → jog the next kilometre trying to recover → repeat. Control the stations so you can actually RUN the runs. 4. Underestimating the Sleds That sled in your nice quiet gym might feel lovely. Race-day carpet may have other ideas. Get strong enough that the sled isn’t a near-death experience. 5. Ignoring Wall Balls Leaving wall balls until the final few weeks is brave. You’ve got 100 of them waiting for you at the end. Practise them. 6. Making Burpees Harder Than They Need to Be Nobody gets bonus points for beautiful burpees. Meet the movement standards, find a rhythm and keep moving. Efficient beats impressive. 7. Having Bag SkiErg Technique If your arms are doing everything, congratulations. You’ve turned 1,000m into significantly more work than necessary. Learn enough technique to stop wasting energy. 8. Obsessing Over Technique Yes, technique matters. No, you don't need a PhD in sled pushing. Once you can perform the movements efficiently and meet the standards, getting fitter will probably help you more than another 400 technique drills. 9. Wearing New Kit on Race Day New trainers. New shorts. New socks. New gels. What could possibly go wrong? Nothing new on race day. 10. Eating Like It’s Your Last Supper You don’t need to consume 4,000 calories because you're racing tomorrow.