RELIEVERS: The White Sox and ERA, xERA and pxERA

This week, we start with a look at how actual ERA and expected ERA (xERA) interact at the halfway point in the season, along with where projected expected ERA (pxERA) fits in. One interesting place to do this is the Chicago White Sox pen:

                    IP    ERA  xERA  pxERA
==============     ====  ====  ====  =====
Belisario          37.0  5.35  3.26  3.47
Guerra             13.7  2.63  3.58  4.56
Putnam             29.0  2.17  3.24  4.01
Petricka           42.7  2.11  3.75  4.24
D.Webb             35.3  3.31  4.97  4.30

The White Sox are having a hard time with their pen, and the focus is all on Ronald Belisario (RHP, CHW) who is the miscast, groundballing, not-enough-strikeouts deposed closer. Belisario has a 5.35 actual ERA,...

Almost!

You’re just a few clicks away from accessing this feature and hundreds more throughout the year that have a singular goal in mind: Winning your league. Subscribe to BaseballHQ.com here!

Already a subscriber? Sign in here

More From Relief Pitchers

This article will touch a little on every team and point out one skill set per team that you need to follow going into 2025.
Sep 14 2024 3:09am
An early look at how free agent relievers could change the makeup of several pens.
Sep 10 2024 3:02am
Filtering by holds over the past 30 days gives us plenty of names to examine.
Sep 1 2024 3:09am
Filter out saves and check out the BPIs for relievers with an xERA under 2.50 across the past 30 days.
Aug 25 2024 3:10am
The best skill sets give you the best chance at a strong finish. Here are some relievers who can help.
Aug 18 2024 3:09am

Tools