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
27,659 completed
Crew Coverage
100.0%
Full four-umpire crews listed
Umpires
143
Unique officials tracked
Seasons
12
2015 to 2026
2026 Games
2,916
2,026 completed this season
Avg Runs
8.9
Combined runs per completed 2026 game
Avg Duration
164 min
Typical game pace this season
Avg Attendance
29,567
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.

Venue Attendance Leaders

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

Top 10 Runs vs Expected Leaders

Home plate umpires whose games finish furthest above the closing total, minimum 40 qualifying plate games.

# Umpire Sample Avg Runs Runs +/- Exp Home Win %
1 Mark Wegner 157 9.8 +1.47 50.6%
2 Willie Traynor 43 10.0 +1.38 46.5%
3 Jeff Nelson 95 9.3 +1.29 54.3%
4 Jerry Meals 73 9.1 +1.17 53.5%
5 Angel Hernandez 92 9.2 +1.16 47.6%
6 Brian Walsh 102 9.5 +1.11 53.4%
7 James Jean 51 9.8 +1.11 62.7%
8 Andy Fletcher 178 9.5 +1.1 52.4%
9 Adrian Johnson 182 9.6 +1.08 53.8%
10 Greg Gibson 40 9.0 +1.06 51.7%

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Top 10 Highest Over % Home Plate Umpires

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

# Umpire Sample Over % Avg Runs Runs +/- Exp
1 James Jean 49 61.2% 9.8 +1.11
2 Mark Wegner 153 59.5% 9.8 +1.47
3 Adrian Johnson 169 59.2% 9.6 +1.08
4 Jeff Nelson 90 57.8% 9.3 +1.29
5 Alfonso Márquez 181 57.5% 9.5 +0.83
6 Angel Hernandez 89 57.3% 9.2 +1.16
7 Willie Traynor 42 57.1% 10.0 +1.38
8 Edwin Moscoso 198 57.1% 9.3 +0.69
9 Tom Hanahan 92 56.5% 9.2 +0.8
10 Jerry Meals 69 56.5% 9.1 +1.17

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Venue Attendance

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

# Venue Games Avg Attendance
1 Dodger Stadium 66 50,103
2 Yankee Stadium 65 41,325
3 Petco Park 69 41,288
4 Rogers Centre 70 41,035
5 Citizens Bank Park 68 39,836
6 Wrigley Field 66 36,640
7 T-Mobile Park 68 35,995
8 Oracle Park 67 35,655