Part 4/7:
A critical examination of how relief pitchers, particularly Clase, are evaluated reveals fundamental issues with using traditional metrics. Many fans and analysts often rely on ERA and save percentages which, while useful to an extent, do not accurately capture a pitcher’s true performance, particularly in high-pressure situations. Instead, advanced statistics may offer a more reliable picture.
For instance, strikeout minus walk rate—a more direct representation of a pitcher's control—can be a much more effective gauge of reliever performance. Clase’s evolving numbers over the years have demonstrated fluctuation, highlighting his journey as he transitioned from a former starter to a bullpen stalwart.