Park Factors

Major League Baseball has analyzed Statcast data from 2021 to 2025 to rank 29 ballparks based on how difficult they are for outfielders to catch fly balls, using Outs Above Average metrics. Parks with roofs and consistent weather top the list as the friendliest, while wind, sun, and unique dimensions make others the hardest. The study highlights a small home-field advantage of about +3 OAA per team per year.