The Concatenated Case of Emmanuel Clase

In 2023, Emmanuel Clase ran a 3.22 ERA and a 2.91 FIP. His 44 saves were a career high and five more than any other pitcher. Compared to the rest of the league, he was great. Compared to prior versions of Emmanuel Clase, however, he was dreadful. In 2021 and 2022, Clase was an unstoppable force of nature, running a 1.33 ERA and a top-five groundball rate while striking out more than a batter per inning. Then in 2023, Clase fell off a cliff, though admittedly, he landed on another, still pretty lofty cliff; not with a splat, but gently, into some soft, leafy bushes.
What happened to Clase? Everything happened! There were situational factors and mechanical factors. There were changes in consistency and approach. Everything is connected when it comes to pitching, with one factor cascading upon another. The fun is in following the chain. Read the rest of this entry »