4 Advil before the race? This is a bad idea, from experience. I took 2 Advil before a 10K and felt great, but within an hour after the race, I was in complete pain. My stomach was cramping and I couldn't get up out of bed for at least 45 min. If you Google "Advil" and "running", you will find many articles that warn you about the mixture. I've ran two half-marathons without pain killers, it's definitely the way to go.
