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National League:
Arizona Bullpen
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Colorado Bullpen
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Game Matchup Breakdown

Boston Red Sox
Boston Red Sox
@
May 9, 2025 6:40 PM ET
Kauffman Stadium
Kansas City Royals
Kansas City Royals

Boston Bullpen Pitchers

ALL BULLPEN PITCHERS
Justin Wilson
Justin Wilson
Throws:
L
Effective Rtg:
80.9
Fatigue %:
-9.6
IP 2025:
11.1
ERA:
3.18
Outings:
14
FIP:
2.39
Pitch Arsenal:
FF SL FC
Player Profile
Liam Hendriks
Liam Hendriks
Throws:
R
Effective Rtg:
67.9
Fatigue %:
-7.4
IP 2025:
8.0
ERA:
2.25
Outings:
7
FIP:
5.10
Pitch Arsenal:
FF SL CU
Player Profile
Aroldis Chapman
Aroldis Chapman
Throws:
L
Effective Rtg:
78.6
Fatigue %:
-9.3
IP 2025:
12.1
ERA:
2.19
Outings:
14
FIP:
3.51
Pitch Arsenal:
FF SI SL FS
Player Profile
Sean Newcomb
Sean Newcomb
Throws:
L
Effective Rtg:
75.4
Fatigue %:
-19.4
IP 2025:
27.1
ERA:
3.62
Outings:
7
FIP:
2.59
Pitch Arsenal:
FF FC SV SI CH
Player Profile
Brennan Bernardino
Brennan Bernardino
Throws:
L
Effective Rtg:
80.3
Fatigue %:
-14.5
IP 2025:
14.0
ERA:
1.93
Outings:
14
FIP:
2.89
Pitch Arsenal:
SI CU FC CH
Player Profile
Greg Weissert
Greg Weissert
Throws:
R
Effective Rtg:
80.8
Fatigue %:
-5.1
IP 2025:
16.0
ERA:
2.81
Outings:
16
FIP:
2.41
Pitch Arsenal:
FF SI CH SL ST
Player Profile
Garrett Whitlock
Garrett Whitlock
Throws:
R
Effective Rtg:
82.1
Fatigue %:
-10.3
IP 2025:
20.2
ERA:
3.48
Outings:
13
FIP:
2.57
Pitch Arsenal:
SI CH SL ST
Player Profile
Justin Slaten
Justin Slaten
Throws:
R
Effective Rtg:
74.7
Fatigue %:
-5.0
IP 2025:
13.2
ERA:
5.93
Outings:
15
FIP:
3.83
Pitch Arsenal:
FF FC CU ST
Player Profile
Hunter Dobbins
Hunter Dobbins
Throws:
R
Effective Rtg:
78.0
Fatigue %:
0.0
IP 2025:
16.2
ERA:
3.78
Outings:
3
FIP:
4.18
Pitch Arsenal:
FF SL FS ST CU
Player Profile
BOS Starter
Hunter Dobbins
Projected SP: Hunter Dobbins
Throws: R
vs KC
Projected Lineup
1 - R - Jonathan India - 3B
2 - R - Bobby Witt Jr. - SS
3 - L - Vinnie Pasquantino - 1B
4 - R - Salvador Perez - C
5 - R - Maikel Garcia - 3B
6 - L - Michael Massey - 2B
7 - R - Hunter Renfroe - RF
8 - S - Drew Waters - LF
9 - R - Freddy Fermin - C

Projected SP: Michael Lorenzen - throws: R
LIKELY TO PITCH
Liam Hendriks
Liam Hendriks
Effective Rtg:
Eff Rtg:
67.9
Fatigue %:
-7.4
Player Profile
Aroldis Chapman
Aroldis Chapman
Effective Rtg:
Eff Rtg:
78.6
Fatigue %:
-9.3
Player Profile
Greg Weissert
Greg Weissert
Effective Rtg:
Eff Rtg:
80.8
Fatigue %:
-5.1
Player Profile
Justin Slaten
Justin Slaten
Effective Rtg:
Eff Rtg:
74.7
Fatigue %:
-5.0
Player Profile
Hunter Dobbins
Hunter Dobbins
Effective Rtg:
Eff Rtg:
78.0
Fatigue %:
0.0
Player Profile

Boston Bullpen Usage & Stats

Last 7 Days
Player IP NP-S ERA May-8 May-7 May-6 May-5 May-4 May-3 May-2
Justin Wilson 2.2 35-24 0.00
1.1
5
19-13
1.0
9
14-11
0.1
7
2-0
Liam Hendriks 4.0 36-24 0.00
2.0
18-12
1.0
9
8-5
1.0
9
10-7
Aroldis Chapman 1.0 18-11 9.00
1.0
9
18-11
Sean Newcomb 4.0 77-46 0.00
4.0
6
77-46
Brennan Bernardino 3.0 46-32 0.00
1.0
7
7-5
1.1
4
29-20
0.2
6
10-7
Chris Murphy 0 0-0
Greg Weissert 3.2 56-37 0.00
1.0
8
11-7
1.2
7
31-20
1.0
8
14-10
Garrett Whitlock 3.0 56-33 6.00
1.0
24-13
2.0
6
32-20
Zach Penrod 0 0-0
Justin Slaten 2.1 32-23 7.73
1.1
13-8
1.0
8
19-15
Hunter Dobbins 5.2 92-59 6.36
5.2
1
92-59
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:
77.6
Fatigue Factor:
-9.0
Current Overall Rating:
70.7
Bullpen Power Rankings
#14
#14
Expected Game Results
Bullpen Expected Results:
Bullpen Innings Expected:
3.1
Bullpen Runs Expected:
2.11
Blowout Potential:
[]
Starting Pitcher Expected Results:
Starter Innings Expected:
5.2
Starter Runs Expected:
2.39
Early Exit Risk:
[Low]
Bullpen Expected Results vs Team
GAME RESULTS EXPECTED AVG OPS FIP ERA xWOBA K% BB% ASSESSMENT
Expected  Overall 0.227 0.647 3.76 3.62 0.308 24.1% 7.7% [Above Avg]
Expected  vs L 0.168 0.516 - - - 36.9% 0% [Very Strong]
Expected  vs R 0.262 0.704 - - - 17.1% 5.6% [Below Avg]

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