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Game Matchup Breakdown

St. Louis Cardinals
St. Louis Cardinals
@
July 20, 2025 1:10 PM ET
Chase Field
Arizona Diamondbacks
Arizona Diamondbacks

St. Louis Bullpen Pitchers

ALL BULLPEN PITCHERS
Steven Matz
Steven Matz
Throws:
L
Effective Rtg:
79.8
Fatigue %:
0.0
IP 2025:
51.0
ERA:
3.35
Outings:
28
FIP:
2.92
Pitch Arsenal:
SI CU CH
Player Profile
Phil Maton
Phil Maton
Throws:
R
Effective Rtg:
87.1
Fatigue %:
0.0
IP 2025:
35.1
ERA:
2.55
Outings:
37
FIP:
2.51
Pitch Arsenal:
CU FC ST SI
Player Profile
Ryan Helsley
Ryan Helsley
Throws:
R
Effective Rtg:
81.4
Fatigue %:
0.0
IP 2025:
33.0
ERA:
3.27
Outings:
33
FIP:
3.84
Pitch Arsenal:
SL FF
Player Profile
John King
John King
Throws:
L
Effective Rtg:
70.1
Fatigue %:
-14.9
IP 2025:
37.0
ERA:
5.35
Outings:
38
FIP:
4.97
Pitch Arsenal:
SI CH SL
Player Profile
JoJo Romero
JoJo Romero
Throws:
L
Effective Rtg:
81.2
Fatigue %:
0.0
IP 2025:
29.1
ERA:
2.45
Outings:
36
FIP:
3.39
Pitch Arsenal:
SL SI CH FF
Player Profile
Riley O'Brien
Riley O'Brien
Throws:
R
Effective Rtg:
79.1
Fatigue %:
0.0
IP 2025:
22.1
ERA:
2.01
Outings:
17
FIP:
3.80
Pitch Arsenal:
SI SL CU
Player Profile
Kyle Leahy
Kyle Leahy
Throws:
R
Effective Rtg:
77.9
Fatigue %:
-17.3
IP 2025:
51.1
ERA:
2.98
Outings:
39
FIP:
3.61
Pitch Arsenal:
FF SL ST CU CH
Player Profile
Gordon Graceffo
Gordon Graceffo
Throws:
R
Effective Rtg:
78.7
Fatigue %:
-15.1
IP 2025:
24.2
ERA:
5.11
Outings:
13
FIP:
2.67
Pitch Arsenal:
FF SL CU
Player Profile
STL Starter
Miles Mikolas
Projected SP: Miles Mikolas
Throws: R
vs AZ
Confirmed Lineup
1 - L - Corbin Carroll - RF
2 - L - Jake McCarthy - CF
3 - S - Geraldo Perdomo - SS
4 - L - Josh Naylor - 1B
5 - R - Eugenio Suu00e1rez - 3B
6 - L - Adrian Del Castillo - C
7 - R - Blaze Alexander - SS
8 - L - Alek Thomas - CF
9 - S - Jose Herrera - C

Projected SP: Merrill Kelly - throws: R
LIKELY TO PITCH

St. Louis Bullpen Usage & Stats

Last 7 Days
Player IP NP-S ERA Jul-19 Jul-18 Jul-17 Jul-16 Jul-15 Jul-14 Jul-13
Steven Matz 1.2 39-27 5.42
1.2
4
39-27
Phil Maton 0 0-0
Ryan Helsley 1.0 25-16 0.00
1.0
9
25-16
John King 2.1 31-21 3.86
1.0
13-8
1.1
5
18-13
JoJo Romero 0 0-0
Riley O'Brien 1.2 27-16 0.00
1.2
7
27-16
Kyle Leahy 2.0 24-15 0.00
2.0
7
24-15
Gordon Graceffo 5.1 75-48 1.69
3.2
34-21
1.2
5
41-27
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

St. Louis Bullpen Matchup Analysis

Advanced Snapshot
Cumulative Fatigue & Effectiveness:
Effectiveness Rating:
79.4
Fatigue Factor:
-5.9
Current Overall Rating:
74.9
Bullpen Power Rankings
#3
#7
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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