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Game Matchup Breakdown

Seattle Mariners
Seattle Mariners
@
September 18, 2025 1:10 PM ET
Kauffman Stadium
Kansas City Royals
Kansas City Royals

Kansas City Bullpen Pitchers

ALL BULLPEN PITCHERS
Michael Lorenzen
Michael Lorenzen
Throws:
R
Effective Rtg:
72.4
Fatigue %:
-15.0
IP 2025:
128.1
ERA:
4.91
Outings:
25
FIP:
4.57
Pitch Arsenal:
FF SI CH SL CU
Player Profile
Carlos Estévez
Carlos Estévez
Throws:
R
Effective Rtg:
76.5
Fatigue %:
-7.2
IP 2025:
64.0
ERA:
2.53
Outings:
65
FIP:
3.70
Pitch Arsenal:
FF SL CH
Player Profile
Daniel Lynch IV
Daniel Lynch IV
Throws:
L
Effective Rtg:
73.1
Fatigue %:
-16.5
IP 2025:
64.2
ERA:
3.20
Outings:
55
FIP:
4.93
Pitch Arsenal:
SL FF SI CH KC
Player Profile
Taylor Clarke
Taylor Clarke
Throws:
R
Effective Rtg:
76.7
Fatigue %:
-2.0
IP 2025:
51.0
ERA:
3.53
Outings:
47
FIP:
4.04
Pitch Arsenal:
SL FF CH SI
Player Profile
Lucas Erceg
Lucas Erceg
Throws:
R
Effective Rtg:
81.4
Fatigue %:
-11.0
IP 2025:
61.1
ERA:
2.64
Outings:
61
FIP:
3.50
Pitch Arsenal:
FF SL SI CH
Player Profile
Sam Long
Sam Long
Throws:
L
Effective Rtg:
68.7
Fatigue %:
-13.2
IP 2025:
38.1
ERA:
4.93
Outings:
37
FIP:
4.84
Pitch Arsenal:
FF SL CU SI FS
Player Profile
John Schreiber
John Schreiber
Throws:
R
Effective Rtg:
77.9
Fatigue %:
-9.9
IP 2025:
60.1
ERA:
3.73
Outings:
69
FIP:
4.25
Pitch Arsenal:
FF ST FC SI
Player Profile
Angel Zerpa
Angel Zerpa
Throws:
L
Effective Rtg:
74.1
Fatigue %:
-4.0
IP 2025:
62.0
ERA:
4.06
Outings:
66
FIP:
3.93
Pitch Arsenal:
SI SL FF
Player Profile
Jonathan Bowlan
Jonathan Bowlan
Throws:
R
Effective Rtg:
80.9
Fatigue %:
-19.8
IP 2025:
39.2
ERA:
4.31
Outings:
30
FIP:
4.25
Pitch Arsenal:
FF SL SI CU CH
Player Profile
KC Starter
Stephen Kolek
Projected SP: Stephen Kolek
Throws: R
vs SEA
Confirmed Lineup
1 - R - Randy Arozarena - LF
2 - S - Cal Raleigh - C
3 - R - Julio Rodríguez - CF
4 - L - Josh Naylor - 1B
5 - S - Jorge Polanco - 2B
6 - R - Eugenio Suárez - 3B
7 - L - Dominic Canzone - RF
8 - R - Victor Robles - RF
9 - S - Leo Rivas - 2B

Projected SP: Luis Castillo - throws: R
LIKELY TO PITCH

Kansas City 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
Michael Lorenzen 4.0 84-51 13.50
1.0
12-7
3.0
1
72-44
Carlos Estévez 1.2 25-16 5.42
1.0
17-12
0.2
9
8-4
Daniel Lynch IV 4.1 66-38 6.24
2.1
3
40-24
2.0
4
26-14
Taylor Clarke 2.1 46-29 11.59
1.0
8
12-8
0.1
7
12-8
1.0
7
22-13
Lucas Erceg 2.0 31-21 4.50
1.0
19-14
1.0
8
12-7
Sam Long 2.2 46-30 0.00
1.0
7
17-10
0.2
7
3-2
1.0
6
26-18
John Schreiber 3.1 43-27 8.11
1.0
15-8
1.0
8
10-6
1.1
7
18-13
Angel Zerpa 2.0 37-23 18.00
1.0
15-9
1.0
5
22-14
Luinder Avila 2.1 52-34 0.00
1.0
6
33-21
0.1
9
8-5
1.0
8
11-8
Jonathan Bowlan 2.1 56-37 11.59
0.1
13-8
1.0
9
24-15
1.0
6
19-14
IP
In
NP-S
IP
In
NP-S
IP
In
NP-S
IP
In
NP-S
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In
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IP
In
NP-S

Kansas City Bullpen Matchup Analysis

Advanced Snapshot
Cumulative Fatigue & Effectiveness:
Effectiveness Rating:
75.7
Fatigue Factor:
-11.0
Current Overall Rating:
67.4
Bullpen Power Rankings
#25
#18
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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