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Game Matchup Breakdown

Boston Red Sox
Boston Red Sox
@
June 17, 2025 6:40 PM ET
T-Mobile Park
Seattle Mariners
Seattle Mariners

Boston Bullpen Pitchers

ALL BULLPEN PITCHERS
Justin Wilson
Justin Wilson
Throws:
L
Effective Rtg:
88.0
Fatigue %:
-11.2
IP 2025:
24.0
ERA:
2.25
Outings:
29
FIP:
2.07
Pitch Arsenal:
FF SL FC
Player Profile
Aroldis Chapman
Aroldis Chapman
Throws:
L
Effective Rtg:
88.6
Fatigue %:
-6.6
IP 2025:
29.0
ERA:
1.55
Outings:
32
FIP:
2.21
Pitch Arsenal:
FF SI SL FS
Player Profile
Brennan Bernardino
Brennan Bernardino
Throws:
L
Effective Rtg:
78.4
Fatigue %:
-5.0
IP 2025:
27.0
ERA:
3.33
Outings:
32
FIP:
3.37
Pitch Arsenal:
SI CU FC CH
Player Profile
Jorge Alcala
Jorge Alcala
Throws:
R
Effective Rtg:
66.0
Fatigue %:
0.0
IP 2025:
24.1
ERA:
8.88
Outings:
22
FIP:
5.41
Pitch Arsenal:
FF SL CU SI
Player Profile
Greg Weissert
Greg Weissert
Throws:
R
Effective Rtg:
77.8
Fatigue %:
-2.0
IP 2025:
32.0
ERA:
2.81
Outings:
34
FIP:
3.20
Pitch Arsenal:
FF SI SL ST CH
Player Profile
Garrett Whitlock
Garrett Whitlock
Throws:
R
Effective Rtg:
84.5
Fatigue %:
-6.3
IP 2025:
36.1
ERA:
2.97
Outings:
26
FIP:
2.71
Pitch Arsenal:
SI SL CH
Player Profile
Zack Kelly
Zack Kelly
Throws:
R
Effective Rtg:
76.9
Fatigue %:
0.0
IP 2025:
16.1
ERA:
6.61
Outings:
12
FIP:
3.56
Pitch Arsenal:
FC FF ST CH SI
Player Profile
Luis Guerrero
Luis Guerrero
Throws:
R
Effective Rtg:
71.7
Fatigue %:
-2.0
IP 2025:
12.1
ERA:
2.92
Outings:
8
FIP:
4.45
Pitch Arsenal:
SL FF ST
Player Profile
BOS Starter
Walker Buehler
Projected SP: Walker Buehler
Throws: R
vs SEA
Projected Lineup
1 - L - J.P. Crawford - SS
2 - R - Julio Rodru00edguez - CF
3 - S - Cal Raleigh - C
4 - S - Jorge Polanco - 3B
5 - R - Randy Arozarena - LF
6 - L - Rowdy Tellez - 1B
7 - R - Mitch Garver - C
8 - L - Dominic Canzone - RF
9 - L - Miles Mastrobuoni - 2B

Projected SP: Bryan Woo - throws: R
LIKELY TO PITCH

Boston Bullpen Usage & Stats

Last 7 Days
Player IP NP-S ERA Jun-15 Jun-14 Jun-13 Jun-12 Jun-11 Jun-10 Jun-9
Justin Wilson 2.0 30-20 0.00
1.2
7
18-12
0.1
8
12-8
Aroldis Chapman 2.2 40-29 0.00
0.2
9
14-9
1.0
9
11-8
1.0
10
15-12
Brennan Bernardino 0.2 26-14 27.27
0.1
10-7
0.1
7
16-7
Jorge Alcala 1.2 40-27 27.11
1.2
7
40-27
Greg Weissert 2.2 35-19 3.38
1.0
9
13-7
0.2
8
15-8
1.0
9
7-4
Garrett Whitlock 4.2 53-38 0.00
1.2
14-11
1.0
10
17-11
2.0
7
22-16
Zack Kelly 1.0 23-12 9.00
1.0
11
23-12
Luis Guerrero 2.2 57-31 10.15
0.1
7
17-8
2.1
7
40-23
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:
79.0
Fatigue Factor:
-4.1
Current Overall Rating:
75.5
Bullpen Power Rankings
#20
#16
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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