Question: how much water should you drink the day before a long run?
Answer: Tip #3: Drink water before, during, and after a run Aim for 16 ounces (2 cups) of water at about two hours before you run. Pair this with a snack or meal. About 15 minutes before a run, drink six to eight ounces of water. During a run longer than one hour, drink water at regular intervals.