Improve your HYROX running Most athletes do not struggle with the stations, they struggle with running between them. The data is clear. Running is over half the race. If your engine is limited, your performance is limited. Improve your running and everything else gets easier. Here is how to build HYROX-specific run fitness: 1. Run more Not harder. More. Aerobic volume drives performance. The mitochondria you build during low to moderate intensity work are what allow you to recover between sleds, burpees, carries and walls. If you are running under 15 miles per week, the fastest improvement you can make is increasing weekly mileage gradually. 2. Tempo runs The event lives near lactate threshold. Training there raises the speed you can sustain without blowing up. Think 20 to 40 minutes at controlled discomfort. You should be able to speak in short sentences but not hold a conversation. This is the exact system that determines late-race fatigue. 3. Compromised running Run under fatig...