Bet of luck for your race.You will have to jut bemore focused and alway think of winning thee race.Never ever think in your mind that it will be tough to win.One night previous take light dinner and a good 8-9 hour sleep.In morning just concentrate in your mind and dont get distracted.Think about the glory and happiness you and your family member will achieve once you win this race.Mysself i a homoeopathic doctor and we obey thi theory that WELLNESS OF MIND IS THE WELLNESS OF THE BODY , mean that forget you have less stamina,forget about the end result,but jut keep one thing in mind 1 minute before starting race that you will give your 110% effort and that is all because with a strong and determined mind we can achieve great heights.