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
Brian Walsh

Current profile selection.

Assignments
411

Across 4 tracked seasons.

Plate Games
96

96 tracked home plate assignments with final scores.

Base Positions
315

1B 111 • 2B 104 • 3B 100

Avg Plate Total
9.3

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 %
53.1%

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

Pace & Crowd
162 min

Avg attendance 29,056 in plate games.

Profile Breakdown

Switch between team-level betting analysis and the full assignment schedule for Brian Walsh.

Team Betting Splits

How individual teams perform against the number when Brian Walsh 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 Los Angeles Angels Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
2 Arizona Diamondbacks Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
3 St. Louis Cardinals Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
4 Houston Astros Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
5 Detroit Tigers Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
6 New York Mets 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 Boston Red Sox Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
9 Tampa Bay Rays Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
10 Washington Nationals Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
11 Chicago Cubs Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
12 Milwaukee Brewers Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
13 New York Yankees Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
14 Philadelphia Phillies Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
15 Chicago White Sox Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
16 San Francisco Giants Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
17 Kansas City Royals Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
18 Seattle Mariners Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
19 Colorado Rockies Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
20 San Diego Padres Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
21 Minnesota Twins Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
22 Oakland Athletics Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
23 Cincinnati Reds Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
24 Los Angeles Dodgers Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
25 Texas Rangers Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
26 Toronto Blue Jays Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
27 Athletics Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
28 Pittsburgh Pirates Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
29 Cleveland Guardians Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
30 Miami Marlins Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required Subscription required
31 Atlanta Braves 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 Brian Walsh 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 411 filtered assignments .

Date Home Away Score Favorite RL Home RL O/U Pos Attendance
2026-07-27 DET BAL 5-8
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 21,913
2026-07-19 ARI STL 8-7
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 28,069
2026-07-18 ARI STL 5-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 38,244
2026-07-17 ARI STL 4-5
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 29,931
2026-07-12 MIA CLE 2-5
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 17,147
2026-07-11 MIA CLE 1-4
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 16,070
2026-07-10 MIA CLE 2-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 15,605
2026-07-09 TEX LAA 7-6
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 29,646
2026-07-08 TEX LAA 1-13
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 23,288
2026-07-07 TEX LAA 8-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 23,816
2026-06-28 TB ARI 5-1
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 17,195
2026-06-27 TB ARI 4-2
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 17,562
2026-06-26 TB ARI 6-1
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 12,972
2026-06-24 TOR HOU 1-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 39,264
2026-06-23 TOR HOU 7-9
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 38,633
2026-06-22 TOR HOU 4-2
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 42,273
2026-06-21 PHI NYM 6-2
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 41,552
2026-06-20 PHI NYM 15-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 43,402
2026-06-18 PHI NYM 4-6
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 39,767
2026-06-17 WSH KC 2-6
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
First Base 17,643
2026-06-16 WSH KC 6-4
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 25,053
2026-06-15 WSH KC 7-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 14,444
2026-06-14 BOS TEX 4-6
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Second Base 32,006
2026-06-13 BOS TEX 6-3
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Third Base 34,556
2026-06-12 BOS TEX 10-1
Result Subscription required Line Subscription required
Result Subscription required Line Subscription required
Result Subscription required Total Subscription required
Home Plate 33,919
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