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.

Alfonso Márquez Profile

Assignments
109

All tracked positions

Home Plate
27

Games with final scores

Base Assignments
82

1B 27 · 2B 28 · 3B 27

Average plate total10.37
Runs vs closing total+2.13
O/U record18-9
Over rate66.7%
Favorite cover7-20
Home win rate48.1%
Average pace168 min
Seasons

Team Betting Splits

How individual teams perform against the number when Alfonso Márquez is behind the plate in the selected betting sample.

Sort by sample size, team cover rate, home cover rate, totals rate, or average margin versus the number.

# Team Games ATS Record Team Cover % Home Cover % Away Cover % O/U Record Over % Avg vs RL Avg vs Total
1 Diamondbacks 4 4-0 100.0% 100.0% 100.0% 1-3 25.0% +4.25 -1.25
2 Reds 3 2-1 66.7% 50.0% 100.0% 3-0 100.0% +0.83 +3.17
3 Cardinals 3 2-1 66.7% 50.0% 100.0% 3-0 100.0% +0.5 +5.0
4 Braves 3 1-2 33.3% 100.0% 0.0% 2-1 66.7% -2.17 +2.0
5 Yankees 3 2-1 66.7% 50.0% 100.0% 2-1 66.7% +1.5 +1.67
6 Padres 3 1-2 33.3% 33.3% 2-1 66.7% -0.83 +0.83
7 Brewers 3 0-3 0.0% 0.0% 0.0% 1-2 33.3% -5.17 +3.0
8 Rays 3 0-3 0.0% 0.0% 0.0% 1-2 33.3% -5.5 +0.67
9 Athletics 2 2-0 100.0% 100.0% 2-0 100.0% +6.5 +2.75
10 Guardians 2 1-1 50.0% 0.0% 100.0% 2-0 100.0% -3.5 +3.0
11 Tigers 2 2-0 100.0% 100.0% 2-0 100.0% +5.0 +2.5
12 Marlins 2 1-1 50.0% 50.0% 2-0 100.0% +3.5 +4.25
13 Mets 2 1-1 50.0% 50.0% 2-0 100.0% -1.5 +7.0
14 Phillies 2 0-2 0.0% 0.0% 0.0% 2-0 100.0% -8.5 +5.5
15 White Sox 2 1-1 50.0% 50.0% 1-1 50.0% 0.0 -2.0
16 Astros 2 0-2 0.0% 0.0% 1-1 50.0% -5.0 -0.5
17 Angels 2 2-0 100.0% 100.0% 1-1 50.0% +8.0 +2.5
18 Pirates 2 2-0 100.0% 100.0% 100.0% 1-1 50.0% +4.0 +5.0
19 Mariners 2 0-2 0.0% 0.0% 1-1 50.0% -2.0 -0.25
20 Orioles 1 0-1 0.0% 0.0% 1-0 100.0% -6.5 +5.0
21 Twins 1 1-0 100.0% 100.0% 1-0 100.0% +11.5 +5.5
22 Rangers 1 0-1 0.0% 0.0% 1-0 100.0% -11.5 +5.5
23 Nationals 1 1-0 100.0% 100.0% 1-0 100.0% +9.5 +4.0
24 Red Sox 1 1-0 100.0% 100.0% 0-1 0.0% +3.5 -1.5
25 Cubs 1 0-1 0.0% 0.0% 0-1 0.0% -3.5 -6.5
26 Dodgers 1 0-1 0.0% 0.0% 0-1 0.0% -0.5 -0.5

Recent Betting Trend

Home plate game-by-game result and running streak for Alfonso Márquez in Selected Seasons.

Team Splits

Team cover % and over % when Alfonso Márquez is behind the plate, for every team in the sample (games shown in parentheses).

Assignment Schedule

Filter assignment history by position and team within the selected seasons.

Showing 51-75 of 109 filtered assignments .

Date Home Away Score Favorite RL Home RL O/U Pos Attendance
2026-06-30 Yankees Tigers 3-9
Favorite 4.5 DET -1.5
Away 4.5 Home +1.5
Over 5.0 7.0
Third Base 37,211
2026-06-29 Yankees Tigers 3-7
Dog 5.5 NYY -1.5
Away 5.5 Home -1.5
Over 2.0 8.0
Home Plate 40,506
2026-06-20 Cubs Blue Jays 6-8
Dog 3.5 CHC -1.5
Away 3.5 Home -1.5
Over 5.0 9.0
First Base 40,706
2026-06-19 Cubs Blue Jays 16-2
Dog 15.5 TOR -1.5
Home 15.5 Home +1.5
Over 11.0 7.0
Second Base 40,275
2026-06-18 Rangers Twins 3-9
Favorite 4.5 MIN -1.5
Away 4.5 Home +1.5
Over 4.5 7.5
Third Base 30,606
2026-06-16 Rangers Twins 2-12
Dog 11.5 TEX -1.5
Away 11.5 Home -1.5
Over 5.5 8.5
Home Plate 27,463
2026-06-15 Rangers Twins 2-4
Dog 3.5 TEX -1.5
Away 3.5 Home -1.5
Under 2.5 8.5
First Base 25,957
2026-06-14 Athletics Rockies 9-23
Dog 15.5 ATH -1.5
Away 15.5 Home -1.5
Over 18.0 14.0
Second Base 8,268
2026-06-13 Athletics Rockies 7-5
Favorite 0.5 ATH -1.5
Home 0.5 Home -1.5
Under 2.5 14.5
Third Base 8,532
2026-06-10 Padres Reds 5-4
Dog 0.5 SD -1.5
Away 0.5 Home -1.5
Over 0.5 8.5
Home Plate 37,393
2026-06-09 Padres Reds 3-5
Favorite 0.5 CIN -1.5
Away 0.5 Home +1.5
Over 0.5 7.5
First Base 40,469
2026-06-08 Padres Reds 6-2
Favorite 2.5 SD -1.5
Home 2.5 Home -1.5
Over 0.5 7.5
Second Base 37,223
2026-05-31 Rays Angels 5-2
Favorite 1.5 TB -1.5
Home 1.5 Home -1.5
Under 1.0 8.0
Third Base 16,589
2026-05-30 Rays Angels 3-14
Dog 12.5 TB -1.5
Away 12.5 Home -1.5
Over 10.0 7.0
Home Plate 22,480
2026-05-29 Rays Angels 8-5
Favorite 1.5 TB -1.5
Home 1.5 Home -1.5
Over 5.0 8.0
First Base 18,706
2026-05-27 Guardians Nationals 3-2
Dog 0.5 CLE -1.5
Away 0.5 Home -1.5
Under 2.5 7.5
Second Base 19,559
2026-05-26 Guardians Nationals 3-6
Dog 4.5 CLE -1.5
Away 4.5 Home -1.5
Over 1.5 7.5
Third Base 21,473
2026-05-25 Guardians Nationals 2-10
Dog 9.5 CLE -1.5
Away 9.5 Home -1.5
Over 4.0 8.0
Home Plate 25,494
2026-05-24 Orioles Tigers 1-4
Favorite 1.5 DET -1.5
Away 1.5 Home +1.5
Under 3.0 8.0
First Base 19,735
2026-05-24 Orioles Tigers 5-3
Favorite 0.5 BAL -1.5
Home 0.5 Home -1.5
Push 8.0
Second Base 17,616
2026-05-22 Orioles Tigers 7-4
Favorite 1.5 BAL -1.5
Home 1.5 Home -1.5
Over 2.5 8.5
Third Base 14,956
2026-05-20 Marlins Braves 1-9
Favorite 6.5 ATL -1.5
Away 6.5 Home +1.5
Over 3.0 7.0
Second Base 9,617
2026-05-19 Marlins Braves 4-8
Favorite 2.5 ATL -1.5
Away 2.5 Home +1.5
Over 4.0 8.0
Third Base 7,521
2026-05-18 Marlins Braves 12-0
Dog 13.5 ATL -1.5
Home 13.5 Home +1.5
Over 3.5 8.5
Home Plate 8,672
2026-05-10 Blue Jays Angels 1-6
Favorite 3.5 LAA -1.5
Away 3.5 Home +1.5
Under 1.0 8.0
First Base 40,977