MLB Umpire Assignments – Accuracy & Rankings for Today’s Games

This page lists the home-plate umpire scheduled to call balls and strikes for each MLB game, every day of the season, including playoffs.

In essence, this page is a daily scouting card designed to show you how the game’s plate umpire may influence the strike zone and, in turn, on-base percentage, strikeout rates, and scoring.

Umpire Assignments for Today’s MLB Games

Whether you are previewing a matchup before first pitch or following the action as it unfolds, the MLB Umpire Tracker helps you quickly understand the factors shaping the strike zone. See who is behind the plate, review the umpire’s recent accuracy, compare each team’s ABS challenge performance and monitor live-game calling — all from one bespoke scouting widget.

Do MLB Umpire Assignments Matter in ABS Challenge Era?

Yes, who is umpiring each game can still have an outsized effect on each individual plate appearance.

For every game on today’s slate, the widget brings the most-relevant umpire and challenge information into one clear, easy-to-read view. Start with the basics: see the matchup, game status and score, whether the game is scheduled, live or final, and the plate umpire assigned to call balls and strikes.

Umpire Rankings & Accuracy

The tracker provides a snapshot of the umpire’s recent strike-zone accuracy. This figure is based on called balls and called strikes from the umpire’s recent MLB plate assignments. That gives you a useful view of recent performance and helps put each assignment into context. Alongside the accuracy percentage, the widget displays the size of the sample — for example, “3 games” — so you can see how much recent data supports the figure.

Challenge Success by Team

Team performance is another important part of the picture. The MLB Umpire Tracker shows how often each team has successfully challenged ball and strike calls through the Automated Ball-Strike system, or ABS. This makes it easier to compare how effectively teams are using their challenge opportunities and understand which clubs have been most successful at overturning calls.

Live Umpire Accuracy for Each Game

When a game is live, the widget becomes even more valuable. It can show the accuracy of called pitches in the game so far, giving you a real-time view of how the strike zone is being handled. If missed calls appear to benefit one team more than the other, the tracker highlights that missed-call lean in clear, plain language.