RefMetrics

MLB Umpire Statistics

Season-by-season MLB umpire coverage from 2015 through 2026.

Track plate assignments, season volume, run environment, game pace, and attendance with the same high-level view used across the basketball pages.

Games
33,493
26,650 completed
Crew Coverage
100.0%
Full four-umpire crews listed
Umpires
143
Unique officials tracked
Seasons
12
2015 to 2026
2026 Games
2,916
1,017 completed this season
Avg Runs
8.9
Combined runs per completed 2026 game
Avg Duration
164 min
Typical game pace this season
Avg Attendance
28,844
Completed-game attendance in 2026

Season Volume and Completed Games

Track every MLB season in the dataset, compare total schedule volume against completed games, and see how much of the calendar is available for umpire analysis.

Average Runs by Season

League scoring trends across the seasons currently tracked in the MLB dataset.

Average Home Runs by Season

How the home run environment has moved season to season across completed MLB games.

Home Plate Workload Leaders

The umpires with the most plate assignments in 2026.

Attendance Leaders by Venue

Current-season venues with the strongest average attendance among parks with at least three completed games.

Runs vs Expected Leaders

Home plate umpires whose games finish furthest above the saved Vegas total, minimum 40 odds-backed plate games.

# Umpire Sample Avg Runs Runs +/- Exp Home Win %
1 Jerry Meals 58 9.1 +1.58 53.5%
2 Mark Wegner 133 9.9 +1.37 51.3%
3 Adrian Johnson 155 9.6 +1.18 53.6%
4 Jeff Nelson 84 9.3 +1.14 54.3%
5 Angel Hernandez 78 9.2 +1.13 47.6%
6 Andy Fletcher 155 9.4 +1.12 51.8%
7 Mike Muchlinski 162 9.2 +1.11 52.6%
8 Tom Hanahan 84 9.4 +1.1 49.4%

Highest Over % Home Plate Umpires

Plate umpires whose games go over the Vegas total most often, minimum 40 totals samples.

# Umpire Sample Over % Avg Runs Runs +/- Exp
1 Adrian Johnson 145 60.0% 9.6 +1.18
2 Tom Hanahan 81 59.25925925925925% 9.4 +1.1
3 Angel Hernandez 75 58.666666666666664% 9.2 +1.13
4 Edwin Moscoso 169 57.98816568047337% 9.5 +0.79
5 Mark Wegner 129 57.36434108527132% 9.9 +1.37
6 Jerry Meals 56 57.14285714285714% 9.1 +1.58
7 Nate Tomlinson 117 56.41025641025641% 9.3 +0.69
8 Dan Bellino 165 56.36363636363636% 9.0 +0.99
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Venue Demand Snapshot

Attendance adds useful context to the MLB environment, especially when comparing venues across the current season.

# Venue Games Avg Attendance
1 UNIQLO Field at Dodger Stadium 34 50,838
2 Petco Park 38 41,290
3 Yankee Stadium 31 40,627
4 Rogers Centre 36 40,380
5 Citizens Bank Park 36 39,177
6 Oracle Park 31 37,328
7 Citi Field 31 36,379
8 Truist Park 33 34,947