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

Seattle Mariners
Seattle Mariners
@
July 28, 2025 7:05 PM ET
Sutter Health Park
Athletics
Athletics

Athletics Bullpen Pitchers

ALL BULLPEN PITCHERS
Michael Kelly
Michael Kelly
Throws:
R
Effective Rtg:
73.1
Fatigue %:
-12.7
IP 2025:
16.2
ERA:
1.08
Outings:
16
FIP:
4.22
Pitch Arsenal:
ST FF SL
Player Profile
Ben Bowden
Ben Bowden
Throws:
L
Effective Rtg:
62.3
Fatigue %:
-6.7
IP 2025:
2.0
ERA:
9.00
Outings:
2
FIP:
3.08
Pitch Arsenal:
FF SL CH
Player Profile
Sean Newcomb
Sean Newcomb
Throws:
L
Effective Rtg:
76.7
Fatigue %:
-4.0
IP 2025:
70.0
ERA:
3.34
Outings:
31
FIP:
3.29
Pitch Arsenal:
FF SV SI FC CH
Player Profile
Elvis Alvarado
Elvis Alvarado
Throws:
R
Effective Rtg:
82.7
Fatigue %:
-10.8
IP 2025:
18.0
ERA:
3.50
Outings:
14
FIP:
2.86
Pitch Arsenal:
FF SL SI
Player Profile
J.T. Ginn
J.T. Ginn
Throws:
R
Effective Rtg:
75.7
Fatigue %:
-38.0
IP 2025:
44.0
ERA:
3.89
Outings:
13
FIP:
4.49
Pitch Arsenal:
SI SL FC
Player Profile
Osvaldo Bido
Osvaldo Bido
Throws:
R
Effective Rtg:
64.2
Fatigue %:
0.0
IP 2025:
55.1
ERA:
5.86
Outings:
14
FIP:
6.42
Pitch Arsenal:
FF SL SI CH FC
Player Profile
Jack Perkins
Jack Perkins
Throws:
R
Effective Rtg:
90.2
Fatigue %:
-12.9
IP 2025:
17.2
ERA:
2.55
Outings:
7
FIP:
3.02
Pitch Arsenal:
FF ST FC CH
Player Profile
Justin Sterner
Justin Sterner
Throws:
R
Effective Rtg:
73.7
Fatigue %:
-10.7
IP 2025:
38.1
ERA:
3.99
Outings:
38
FIP:
4.75
Pitch Arsenal:
FF FC ST
Player Profile
Mason Miller
Mason Miller
Throws:
R
Effective Rtg:
86.6
Fatigue %:
0.0
IP 2025:
38.1
ERA:
3.76
Outings:
38
FIP:
2.85
Pitch Arsenal:
FF SL
Player Profile
ATH Starter
JP Sears
Projected SP: JP Sears
Throws: L
vs SEA
Confirmed Lineup
1 - R - Julio Rodríguez - CF
2 - S - Cal Raleigh - C
3 - R - Randy Arozarena - LF
4 - L - Josh Naylor - 1B
5 - S - Jorge Polanco - 2B
6 - R - Mitch Garver - C
7 - L - Dominic Canzone - RF
8 - R - Dylan Moore - 2B
9 - R - Ben Williamson - 3B

Projected SP: Luis Castillo - throws: R
LIKELY TO PITCH
Michael Kelly
Michael Kelly
Effective Rtg:
Eff Rtg:
73.1
Fatigue %:
-12.7
Player Profile
Sean Newcomb
Sean Newcomb
Effective Rtg:
Eff Rtg:
76.7
Fatigue %:
-4.0
Player Profile
Elvis Alvarado
Elvis Alvarado
Effective Rtg:
Eff Rtg:
82.7
Fatigue %:
-10.8
Player Profile
Osvaldo Bido
Osvaldo Bido
Effective Rtg:
Eff Rtg:
64.2
Fatigue %:
0.0
Player Profile
Mason Miller
Mason Miller
Effective Rtg:
Eff Rtg:
86.6
Fatigue %:
0.0
Player Profile

Athletics Bullpen Usage & Stats

Last 7 Days
Player IP NP-S ERA Jul-28 Jul-27 Jul-26 Jul-25 Jul-24 Jul-23 Jul-22
Michael Kelly 2.2 40-27 0.00
2.0
27-17
0.2
8
13-10
Ben Bowden 2.0 41-29 9.00
1.0
9
19-13
1.0
9
22-16
Sean Newcomb 4.0 43-28 2.25
1.0
10-5
2.0
7
20-14
1.0
6
13-9
Elvis Alvarado 3.0 49-28 0.00
1.0
17-11
2.0
7
32-17
J.T. Ginn 11.0 135-83 0.82
6.0
1
77-48
5.0
1
58-35
Osvaldo Bido 0 0-0
Jack Perkins 5.0 89-54 1.80
2.0
7
35-23
3.0
6
54-31
Justin Sterner 3.0 36-26 9.00
0.2
7-4
1.2
5
19-14
0.2
7
10-8
Mason Miller 2.1 42-26 0.00
1.0
9
19-13
1.1
8
23-13
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

Athletics Bullpen Matchup Analysis

Advanced Snapshot
Cumulative Fatigue & Effectiveness:
Effectiveness Rating:
76.1
Fatigue Factor:
-10.6
Current Overall Rating:
67.9
Bullpen Power Rankings
#8
#12
Expected Game Results
Bullpen Expected Results:
Bullpen Innings Expected:
3.1
Bullpen Runs Expected:
3.09
Blowout Potential:
[]
Starting Pitcher Expected Results:
Starter Innings Expected:
5.2
Starter Runs Expected:
2.16
Early Exit Risk:
[Low]
Bullpen Expected Results vs Team
GAME RESULTS EXPECTED AVG OPS FIP ERA xWOBA K% BB% ASSESSMENT
Expected  Overall 0.274 0.793 4.46 4.29 0.342 23.1% 10.7% [Very Weak]
Expected  vs L 0.260 0.821 - - - 25.2% 12.1% [Weak]
Expected  vs R 0.283 0.781 - - - 21.9% 9.8% [Weak]

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.

`