The purpose of this simulator is to answer a question that had been on my mind for some time: given that every lineup is a mixture of players that bat for varying degrees of average and power, what’s the ideal order a lineup should have?  Should the players with the highest average indeed bat earliest, which is what is customary?  Where should the power hitters bat?  I built this simulator to help analyze those questions and more.  Using actual rosters from 2022 and 2023, the user can modify lineups and play games in bulk to see the resulting scoring output.