RefMetrics Baseball

MLB Umpire Profiles

Break down one MLB umpire at a time with assignment counts, home plate scoring context, pace, attendance, recent appearances, and betting performance.

Select an umpire to move from high-level leaderboard volume into plate-level game context and betting trends.

Umpire Profile

Search through all logged MLB umpires and inspect where they work most often and what their home plate games look like.

See Alfonso Márquez for example.

Selected Umpire
Alex MacKay

Current profile selection.

Assignments
452

Across 7 tracked seasons.

Plate Games
100

100 tracked home plate assignments with final scores.

Base Positions
352

1B 123 • 2B 121 • 3B 108

Avg Plate Total
8.07

Expected total Subscription required on average.

Runs vs Total
Subscription required

Positive means this umpire’s plate games finish above the closing total.

O/U Record
Subscription required

Subscription required

Favorite Cover
Subscription required

Subscription required

Home Win %
53.0%

Share of tracked home plate games won by the home team.

Pace & Crowd
164 min

Avg attendance 29,546 in plate games.

Profile Breakdown

Switch between team-level betting analysis and the full assignment schedule for Alex MacKay.

Team Betting Splits

How individual teams perform against the number when Alex MacKay is behind the plate.

# Team Games ATS Record Team Cover % Home Cover % Away Cover % O/U Record Over % Avg vs RL Avg vs Total
1 Detroit Tigers Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
2 Chicago White Sox Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
3 Colorado Rockies Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
4 Pittsburgh Pirates Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
5 Miami Marlins Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
6 Los Angeles Angels Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
7 Baltimore Orioles Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
8 Cincinnati Reds Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
9 San Diego Padres Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
10 St. Louis Cardinals Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
11 Toronto Blue Jays Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
12 Philadelphia Phillies Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
13 Seattle Mariners Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
14 Houston Astros Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
15 Milwaukee Brewers Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
16 Los Angeles Dodgers Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
17 Chicago Cubs Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
18 Arizona Diamondbacks Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
19 Texas Rangers Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
20 Kansas City Royals Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
21 New York Mets Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
22 New York Yankees Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
23 Oakland Athletics Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
24 Minnesota Twins Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
25 Atlanta Braves Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
26 Boston Red Sox Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
27 Tampa Bay Rays Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
28 Cleveland Guardians Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
29 San Francisco Giants Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
30 Athletics Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
31 Washington Nationals Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required

Assignment Schedule

Filter the full MLB assignment history for Alex MacKay by season, position, and team.

Scores are shown home-away. Green marks a positive betting result for that column's angle, and red marks a negative one.

Showing 1-25 of 452 filtered assignments .

Date Home Away Score Favorite RL Home RL O/U Pos Attendance
2026-07-27 CWS NYY 5-9
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 22,357
2026-07-19 CLE PIT 1-7
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 31,973
2026-07-18 CLE PIT 1-7
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 27,989
2026-07-18 CLE PIT 5-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 32,997
2026-07-12 CIN CHC 4-8
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 29,200
2026-07-11 CIN CHC 3-5
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 34,199
2026-07-10 CIN CHC 4-0
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 30,878
2026-07-09 DET ATH 4-1
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 20,699
2026-07-08 DET ATH 6-1
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 29,049
2026-07-07 DET ATH 6-2
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 28,736
2026-07-06 KC PHI 15-1
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 13,496
2026-07-05 KC PHI 5-2
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 14,891
2026-07-04 KC PHI 1-6
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 30,419
2026-07-02 ATL STL 5-11
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 34,524
2026-07-01 ATL STL 5-1
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 27,361
2026-06-30 ATL STL 3-5
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 32,932
2026-06-28 TOR TEX 2-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 40,898
2026-06-27 TOR TEX 4-7
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 41,657
2026-06-26 TOR TEX 4-5
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 41,689
2026-06-25 TOR TEX 5-6
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 35,273
2026-06-24 DET NYY 2-4
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 23,567
2026-06-23 DET NYY 3-4
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 27,157
2026-06-22 DET NYY 5-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 24,284
2026-06-14 CIN ARI 3-5
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 22,946
2026-06-13 CIN ARI 2-1
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 27,563
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