When it comes to scale and precision, artificial intelligence (AI) with ESPN Fantasy Football provides accurate predictions to millions of users around the world. The raw volume of traffic that is many millions of users per day and hundreds of millions of resource retrievals through the IBM Cloud requires a web acceleration tier within the overall system architecture. The ESPN Fantasy Football with Watson system has been a significant undertaking with many components. This article is the first in an eight-part series that takes you behind each component to show you how we used Watson to build a world-class AI solution.