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
33,522
28,090 completed
Crew Coverage
100.0%
Full four-umpire crews listed
Umpires
143
Unique officials tracked
Seasons
12
2015 to 2026
2026 Games
2,945
2,457 completed this season
Avg Runs
8.9
Combined runs per completed 2026 game
Avg Duration
165 min
Typical game pace this season
Avg Attendance
29,726
Completed-game attendance in 2026

MLB Games Per Season

Compare regular-season and postseason totals, completed games, and completed games with odds across each MLB season. Spring training and exhibition games are excluded.

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.

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 162 9.8 +1.39 51.1%
2 Jeff Nelson 95 9.3 +1.29 54.3%
3 Jerry Meals 73 9.1 +1.17 53.5%
4 Angel Hernandez 92 9.2 +1.16 47.6%
5 James Jean 56 9.8 +1.15 62.5%
6 Andy Fletcher 183 9.5 +1.11 52.5%
7 Willie Traynor 47 9.6 +1.07 46.8%
8 Greg Gibson 40 9.0 +1.06 51.7%
9 Adrian Johnson 185 9.6 +1.05 53.6%
10 Brian Walsh 106 9.4 +1.04 54.2%

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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 53 60.4% 9.8 +1.15
2 Adrian Johnson 172 59.3% 9.6 +1.05
3 Mark Wegner 158 58.2% 9.8 +1.39
4 Jeff Nelson 90 57.8% 9.3 +1.29
5 Edwin Moscoso 204 57.4% 9.2 +0.7
6 Angel Hernandez 89 57.3% 9.2 +1.16
7 Alfonso Márquez 185 57.3% 9.5 +0.82
8 Tom Hanahan 96 57.3% 9.3 +0.94
9 Jerry Meals 69 56.5% 9.1 +1.17
10 Willie Traynor 46 56.5% 9.6 +1.07

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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 83 49,821
2 Yankee Stadium 82 41,993
3 Petco Park 85 41,613
4 Rogers Centre 81 41,221
5 Citizens Bank Park 81 39,883
6 Wrigley Field 81 36,662
7 T-Mobile Park 81 35,602
8 Oracle Park 81 35,269