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.

Clear Filters

Showing 101-109 of 109 filtered assignments .

Date Home Away Score Favorite RL Home RL O/U Pos Attendance
2026-04-04 Diamondbacks Braves 2-1
Dog 2.5 ATL -1.5
Home 2.5 Home +1.5
Under 6.5 9.5
Home Plate 37,457
2026-04-03 Diamondbacks Braves 0-2
Favorite 0.5 ATL -1.5
Away 0.5 Home +1.5
Under 7.0 9.0
First Base 29,192
2026-04-02 Diamondbacks Braves 2-17
Favorite 13.5 ATL -1.5
Away 13.5 Home +1.5
Over 10.0 9.0
Second Base 21,600
2026-04-01 Mariners Yankees 3-5
Favorite 0.5 NYY -1.5
Away 0.5 Home +1.5
Over 1.0 7.0
Third Base 23,415
2026-03-31 Mariners Yankees 0-5
Favorite 3.5 NYY -1.5
Away 3.5 Home +1.5
Under 2.0 7.0
Home Plate 32,790
2026-03-30 Mariners Yankees 2-1
Dog 2.5 NYY -1.5
Home 2.5 Home +1.5
Under 4.5 7.5
First Base 27,291
2026-03-28 Padres Tigers 3-0
Dog 4.5 DET -1.5
Home 4.5 Home +1.5
Under 5.0 8.0
Second Base 44,368
2026-03-27 Padres Tigers 2-5
Dog 4.5 SD -1.5
Away 4.5 Home -1.5
Under 0.5 7.5
Third Base 44,896
2026-03-26 Padres Tigers 2-8
Favorite 4.5 DET -1.5
Away 4.5 Home +1.5
Over 3.0 7.0
Home Plate 45,673