Select a bullpen:
Arizona Bullpen
Atlanta Bullpen
Chicago Bullpen
Cincinnati Bullpen
Colorado Bullpen
Los Angeles Bullpen
Miami Bullpen
Milwaukee Bullpen
New York Bullpen
Philadelphia Bullpen
Pittsburgh Bullpen
San Diego Bullpen
San Francisco Bullpen
St Louis Bullpen
Washington Bullpen
Baltimore Bullpen
Boston Bullpen
Chicago Bullpen
Cleveland Bullpen
Detroit Bullpen
Houston Bullpen
Kansas City Bullpen
Los Angeles Bullpen
Minnesota Bullpen
New York Bullpen
Athletics Bullpen
Seattle Bullpen
Tampa Bay Bullpen
Texas Bullpen
Toronto Bullpen

National League:
Arizona Bullpen
Atlanta Bullpen
Chicago Bullpen
Cincinnati Bullpen
Colorado Bullpen
Los Angeles Bullpen
Miami Bullpen
Milwaukee Bullpen
New York Bullpen
Philadelphia Bullpen
Pittsburgh Bullpen
San Diego Bullpen
San Francisco Bullpen
St Louis Bullpen
Washington Bullpen
American League:
Baltimore Bullpen
Boston Bullpen
Chicago Bullpen
Cleveland Bullpen
Detroit Bullpen
Houston Bullpen
Kansas City Bullpen
Los Angeles Bullpen
Minnesota Bullpen
New York Bullpen
Athletics Bullpen
Seattle Bullpen
Tampa Bay Bullpen
Texas Bullpen
Toronto Bullpen

Game Matchup Breakdown

Boston Red Sox
Boston Red Sox
@
September 19, 2025 7:35 PM ET
George M. Steinbrenner Field
Tampa Bay Rays
Tampa Bay Rays

Boston Bullpen Pitchers

ALL BULLPEN PITCHERS
Justin Wilson
Justin Wilson
Throws:
L
Effective Rtg:
86.1
Fatigue %:
-15.7
IP 2025:
46.0
ERA:
2.74
Outings:
58
FIP:
2.57
Pitch Arsenal:
FF SL FC
Player Profile
Aroldis Chapman
Aroldis Chapman
Throws:
L
Effective Rtg:
92.7
Fatigue %:
-8.9
IP 2025:
58.1
ERA:
1.23
Outings:
64
FIP:
1.72
Pitch Arsenal:
FF SI SL FS
Player Profile
Steven Matz
Steven Matz
Throws:
L
Effective Rtg:
79.8
Fatigue %:
-16.1
IP 2025:
74.1
ERA:
3.03
Outings:
50
FIP:
3.36
Pitch Arsenal:
SI CU CH
Player Profile
Chris Murphy
Chris Murphy
Throws:
L
Effective Rtg:
78.7
Fatigue %:
-5.0
IP 2025:
28.2
ERA:
2.51
Outings:
20
FIP:
4.92
Pitch Arsenal:
CU FF SL ST
Player Profile
Greg Weissert
Greg Weissert
Throws:
R
Effective Rtg:
77.0
Fatigue %:
-4.4
IP 2025:
61.2
ERA:
3.06
Outings:
68
FIP:
3.90
Pitch Arsenal:
FF SI SL CH ST
Player Profile
Garrett Whitlock
Garrett Whitlock
Throws:
R
Effective Rtg:
89.1
Fatigue %:
-7.8
IP 2025:
69.0
ERA:
2.35
Outings:
59
FIP:
2.31
Pitch Arsenal:
SI SL CH
Player Profile
Zack Kelly
Zack Kelly
Throws:
R
Effective Rtg:
80.8
Fatigue %:
-15.8
IP 2025:
30.2
ERA:
4.40
Outings:
23
FIP:
3.24
Pitch Arsenal:
FC ST FF SI CH
Player Profile
Justin Slaten
Justin Slaten
Throws:
R
Effective Rtg:
81.0
Fatigue %:
-13.6
IP 2025:
31.0
ERA:
4.65
Outings:
32
FIP:
3.79
Pitch Arsenal:
FC FF CU ST
Player Profile
BOS Starter
Garrett Crochet
Projected SP: Garrett Crochet
Throws: L
vs TB
Projected Lineup
1 - R - Yandy Díaz - 1B
2 - R - Junior Caminero - 3B
3 - L - Brandon Lowe - 2B
4 - R - Christopher Morel - LF
5 - R - Nick Fortes - C
6 - L - Josh Lowe - RF
7 - R - Everson Pereira - CF
8 - R - Carson Williams - SS
9 - L - Bob Seymour - 1B

Projected SP: - throws:
LIKELY TO PITCH

Boston Bullpen Usage & Stats

Last 7 Days
Player IP NP-S ERA Sep-17 Sep-16 Sep-15 Sep-14 Sep-13 Sep-12 Sep-11
Justin Wilson 2.0 42-27 9.00
0.1
16-9
0.1
6
6-4
1.1
6
20-14
Aroldis Chapman 3.0 50-35 3.00
1.0
19-11
1.0
9
11-10
1.0
9
20-14
Steven Matz 2.2 43-28 3.38
0.2
11-8
1.0
8
16-12
1.0
7
16-8
Chris Murphy 3.0 40-24 0.00
0.1
4-3
1.2
6
24-13
1.0
9
12-8
Greg Weissert 0.1 22-12 27.27
0.1
6
22-12
Garrett Whitlock 3.2 55-41 0.00
1.1
15-12
1.0
8
18-12
1.1
7
22-17
Zack Kelly 2.2 45-32 0.00
0.2
8-7
1.0
9
16-13
1.0
8
21-12
Justin Slaten 2.1 20-18 0.00
1.1
15-13
1.0
7
5-5
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:
83.2
Fatigue Factor:
-10.9
Current Overall Rating:
74.1
Bullpen Power Rankings
#10
#7
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.

Premium Member Services & Donations

About Our Site Privacy Policy Contact Us

Terms of Use DMCA Policy

SOCIAL

RECOMMENDED SITES
IndepthStats - LineupVault

Inside the Pen Inside t Pen™

©2022-2025 InsidethePen.com
All rights reserved

All MLB player headshots are licensed via Imagn/USA TODAY Sports.
All images remain the property of their copyright holders.

All team logos are the trademark & property of their respective owners and not InsidethePen.com. We present them here in an editorial context for informational and educational purposes.

`