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Game Matchup Breakdown

Houston Astros
Houston Astros
@
August 1, 2025 7:10 PM ET
Fenway Park
Boston Red Sox
Boston Red Sox

Boston Bullpen Pitchers

ALL BULLPEN PITCHERS
Justin Wilson
Justin Wilson
Throws:
L
Effective Rtg:
83.8
Fatigue %:
0.0
IP 2025:
34.0
ERA:
2.65
Outings:
41
FIP:
3.03
Pitch Arsenal:
FF SL FC
Player Profile
Aroldis Chapman
Aroldis Chapman
Throws:
L
Effective Rtg:
89.8
Fatigue %:
-5.0
IP 2025:
43.0
ERA:
1.26
Outings:
47
FIP:
1.97
Pitch Arsenal:
FF SI SL FS
Player Profile
Steven Matz
Steven Matz
Throws:
L
Effective Rtg:
79.2
Fatigue %:
0.0
IP 2025:
55.0
ERA:
3.44
Outings:
32
FIP:
2.87
Pitch Arsenal:
SI CU CH
Player Profile
Jorge Alcala
Jorge Alcala
Throws:
R
Effective Rtg:
71.2
Fatigue %:
0.0
IP 2025:
40.0
ERA:
6.08
Outings:
39
FIP:
4.84
Pitch Arsenal:
FF CU SL SI
Player Profile
Jordan Hicks
Jordan Hicks
Throws:
R
Effective Rtg:
75.1
Fatigue %:
0.0
IP 2025:
56.0
ERA:
6.27
Outings:
22
FIP:
3.73
Pitch Arsenal:
SI ST FF SL
Player Profile
Chris Murphy
Chris Murphy
Throws:
L
Effective Rtg:
79.5
Fatigue %:
-2.1
IP 2025:
16.2
ERA:
2.70
Outings:
10
FIP:
5.01
Pitch Arsenal:
FF CU SL ST
Player Profile
Greg Weissert
Greg Weissert
Throws:
R
Effective Rtg:
76.4
Fatigue %:
-5.0
IP 2025:
47.0
ERA:
2.87
Outings:
51
FIP:
4.09
Pitch Arsenal:
FF SI SL ST CH
Player Profile
Garrett Whitlock
Garrett Whitlock
Throws:
R
Effective Rtg:
86.7
Fatigue %:
-5.0
IP 2025:
51.1
ERA:
2.98
Outings:
41
FIP:
2.37
Pitch Arsenal:
SI SL CH
Player Profile
Cooper Criswell
Cooper Criswell
Throws:
R
Effective Rtg:
71.9
Fatigue %:
-44.7
IP 2025:
17.2
ERA:
3.57
Outings:
7
FIP:
5.13
Pitch Arsenal:
CH FC SI ST
Player Profile
BOS Starter
Cooper Criswell
Projected SP: Cooper Criswell
Throws: R
vs HOU
Confirmed Lineup
1 - R - Jeremy Peña - SS
2 - R - Jose Altuve - LF
3 - L - Jesús Sánchez - RF
4 - R - Carlos Correa - SS
5 - R - Yainer Diaz - C
6 - R - Christian Walker - 1B
7 - L - Taylor Trammell - LF
8 - R - Cam Smith - RF
9 - R - Mauricio Dubón - 2B

Projected SP: Hunter Brown - throws: R
LIKELY TO PITCH

Boston Bullpen Usage & Stats

Last 7 Days
Player IP NP-S ERA Aug-1 Jul-31 Jul-30 Jul-29 Jul-28 Jul-27 Jul-26
Justin Wilson 3.0 47-30 6.00
1.0
7
17-10
1.0
7
17-12
1.0
7
13-8
Aroldis Chapman 2.2 40-23 0.00
1.0
9-7
0.1
9
3-3
0.1
8
11-4
1.0
9
17-9
Steven Matz 2.0 39-30 9.00
1.0
6
24-20
1.0
8
15-10
Brennan Bernardino 1.0 27-13 0.00
0.2
7
18-9
0.1
5
9-4
Jorge Alcala 1.1 40-20 6.77
0.2
9
20-12
0.2
6
20-8
Jordan Hicks 2.0 48-29 9.00
0.1
9
23-15
1.2
8
25-14
Chris Murphy 3.1 46-31 2.70
2.0
8
24-16
1.1
5
22-15
Greg Weissert 3.1 37-26 0.00
1.0
12-8
1.1
7
11-9
1.0
6
14-9
Garrett Whitlock 3.0 34-30 0.00
1.0
12-10
1.0
8
12-11
1.0
8
10-9
Cooper Criswell 7.0 84-55 1.29
7.0
84-55
IP
In
NP-S
IP
In
NP-S
IP
In
NP-S
IP
In
NP-S
IP
In
NP-S
IP
In
NP-S
IP
In
NP-S

Boston Bullpen Matchup Analysis

Advanced Snapshot
Cumulative Fatigue & Effectiveness:
Effectiveness Rating:
79.3
Fatigue Factor:
-6.9
Current Overall Rating:
74.1
Bullpen Power Rankings
#9
#8
Expected Game Results

Published Game Day

Advanced bullpen stats are generally published once starting pitchers and game odds are available. They are finalized after starting lineups for both teams are confirmed.

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