Joshy, for me, I don't like eating any closer to competition or practice than 2-3 hours otherwise I feel sick. I'd prefer to know my stomach is empty. I've tried eating some carbs 5-6 hours before competition/practice and I seem to be alright, other teammates are able to eat as they walk out to the field to put their boots on. Just experiment with what works for you. It will take a little time.