Top HYROX race day supplements Before we talk supplements, let’s be clear about something. Training and nutrition matter far more than any supplement. If your running, fueling, and pacing are not dialed in, supplements won’t save your race. And one more rule that experienced racers live by: Nothing new on race day. Everything you take should be tested multiple times in training so you know exactly how your body responds. With that in mind, here are three supplements that can help on race day. 1. Caffeine Caffeine is one of the most studied performance enhancers. It can improve power output and reduce perceived effort, which is huge in a race that lasts 60 to 90 minutes. A common dose is about 2 to 3 mg per kg of bodyweight taken 30 to 45 minutes before the start. 2. Beet Root Powder Beet root increases nitric oxide production, which can improve oxygen delivery and endurance performance. Many athletes take it 2 to 3 hours before racing. 3. Sodium Bicarbonate Sodium bicarb help...