Logan Gilbert had a phenomenal first two years, putting up 5.4 fWAR over 305 innings. But as good as he’s been, there’s been an exhaust pipe in his Death Star. Even as he’s racked up strikeouts and avoided walks, two pieces of ace-dom’s holy trinity, his contact management has left a lot to be desired. Check out the Statcast sliders for what happened when hitters got their bats on the ball.
Thus, when you zoom out from FanGraphs’ FIP-based WAR to Baseball Reference’s runs-allowed-based WAR, he drops from 5.