One thing I highly recommend you taking approx 1hr prior to your race is the excellent workout/racing supplement Cardiostack (
www.Cardiostackracing.com). This supplement does a whole host of great things for you such as, improving oxygen utilization, delays the onset of fatigue, and allows your body to tap into those all important fat stores as mentioned previously. The great thing with Cardiostack is that it is all natural and contains no artificial stimulants that can cause jitters and shakes which other products are renowned for!