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Game Matchup Breakdown

Athletics
Athletics
@
September 16, 2025 6:45 PM ET
Fenway Park
Boston Red Sox
Boston Red Sox

Boston Bullpen Pitchers

ALL BULLPEN PITCHERS
Justin Wilson
Justin Wilson
Throws:
L
Effective Rtg:
85.9
Fatigue %:
0.0
IP 2025:
45.1
ERA:
2.78
Outings:
56
FIP:
2.54
Pitch Arsenal:
FF SL FC
Player Profile
Aroldis Chapman
Aroldis Chapman
Throws:
L
Effective Rtg:
92.8
Fatigue %:
-7.6
IP 2025:
57.1
ERA:
1.26
Outings:
63
FIP:
1.69
Pitch Arsenal:
FF SI SL FS
Player Profile
Steven Matz
Steven Matz
Throws:
L
Effective Rtg:
79.5
Fatigue %:
-3.5
IP 2025:
72.2
ERA:
3.10
Outings:
48
FIP:
3.39
Pitch Arsenal:
SI CU CH
Player Profile
Chris Murphy
Chris Murphy
Throws:
L
Effective Rtg:
77.8
Fatigue %:
-2.5
IP 2025:
28.1
ERA:
2.54
Outings:
19
FIP:
5.01
Pitch Arsenal:
CU FF SL ST
Player Profile
Greg Weissert
Greg Weissert
Throws:
R
Effective Rtg:
77.8
Fatigue %:
0.0
IP 2025:
61.1
ERA:
2.93
Outings:
67
FIP:
3.89
Pitch Arsenal:
FF SI SL ST CH
Player Profile
Garrett Whitlock
Garrett Whitlock
Throws:
R
Effective Rtg:
88.7
Fatigue %:
-8.0
IP 2025:
67.2
ERA:
2.39
Outings:
58
FIP:
2.36
Pitch Arsenal:
SI SL CH
Player Profile
Zack Kelly
Zack Kelly
Throws:
R
Effective Rtg:
78.8
Fatigue %:
0.0
IP 2025:
29.0
ERA:
4.66
Outings:
21
FIP:
3.52
Pitch Arsenal:
FC FF ST SI CH
Player Profile
Justin Slaten
Justin Slaten
Throws:
R
Effective Rtg:
78.4
Fatigue %:
0.0
IP 2025:
28.2
ERA:
5.02
Outings:
30
FIP:
3.91
Pitch Arsenal:
FC FF CU ST
Player Profile
BOS Starter
Connelly Early
Projected SP: Connelly Early
Throws: L
vs ATH
Projected Lineup
1 - R - Shea Langeliers - C
2 - R - Jacob Wilson - SS
3 - L - Nick Kurtz - 1B
4 - R - Brent Rooker - RF
5 - R - Colby Thomas - RF
6 - R - Darell Hernaiz - 3B
7 - R - Brett Harris - 3B
8 - R - Willie MacIver - C
9 - R - Max Schuemann - 3B

Projected SP: Jeffrey Springs - throws: L
LIKELY TO PITCH
Justin Wilson
Justin Wilson
Effective Rtg:
Eff Rtg:
85.9
Fatigue %:
0.0
Player Profile
Aroldis Chapman
Aroldis Chapman
Effective Rtg:
Eff Rtg:
92.8
Fatigue %:
-7.6
Player Profile
Greg Weissert
Greg Weissert
Effective Rtg:
Eff Rtg:
77.8
Fatigue %:
0.0
Player Profile
Zack Kelly
Zack Kelly
Effective Rtg:
Eff Rtg:
78.8
Fatigue %:
0.0
Player Profile
Justin Slaten
Justin Slaten
Effective Rtg:
Eff Rtg:
78.4
Fatigue %:
0.0
Player Profile

Boston Bullpen Usage & Stats

Last 7 Days
Player IP NP-S ERA Sep-15 Sep-14 Sep-13 Sep-12 Sep-11 Sep-10 Sep-9
Justin Wilson 2.1 41-26 7.73
1.1
6
20-14
1.0
4
21-12
Aroldis Chapman 2.1 44-33 7.73
1.0
9
11-10
1.0
9
20-14
0.1
9
13-9
Steven Matz 2.2 29-17 3.38
1.0
7
16-8
0.2
5
2-2
1.0
8
11-7
Chris Murphy 3.2 60-36 0.00
1.2
6
24-13
1.0
9
12-8
1.0
9
24-15
Greg Weissert 2.0 22-16 0.00
1.0
3
16-10
1.0
6
6-6
Garrett Whitlock 2.1 40-29 0.00
1.0
8
18-12
1.1
7
22-17
Zack Kelly 1.0 21-12 0.00
1.0
8
21-12
Justin Slaten 1.1 28-17 13.53
0.1
5
10-4
1.0
7
18-13
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:
82.5
Fatigue Factor:
-2.7
Current Overall Rating:
80.1
Bullpen Power Rankings
#14
#7
Expected Game Results
Bullpen Expected Results:
Bullpen Innings Expected:
5.1
Bullpen Runs Expected:
2.9
Blowout Potential:
[]
Starting Pitcher Expected Results:
Starter Innings Expected:
3.2
Starter Runs Expected:
1.10
Early Exit Risk:
[Moderate]
Bullpen Expected Results vs Team
GAME RESULTS EXPECTED AVG OPS FIP ERA xWOBA K% BB% ASSESSMENT
Expected  Overall 0.218 0.607 3.04 3.03 0.283 28.9% 7.9% [Very Strong]
Expected  vs L 0.200 0.570 - - - 28.2% 8.9% [Very Strong]
Expected  vs R 0.219 0.624 - - - 29.8% 8.6% [Very Strong]

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