"Know how much to drink on race day based on your sweat loss. This is vitally important if you want to race well in the Texas heat. Simply weigh yourself before an hour bike or run then weigh yourself after. If you drink any water during the hour, add that to the final total. Once you weigh yourself after the workout, per pound lost = 16 oz. of water per hour that you should drink on race day."
Tip #17 - Hydrate, hydrate and hydrate.