Welcome to the DFS MLB Optimal Lineups for Tuesday, May 15!

First and foremost, keep your eyes on the weather. We've got a number of games where we could run into delays which, obviously, changes which starting pitchers you should be using. It's a little easier with hitters, especially if you believe the game will eventually play out. You do need to see which games could be potentially shortened, but usually you can get away with the hitters in a rainy game.