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Team bullpen data and usage tracking

BOS
Boston
Team Record: 83 - 69
Head Coach: Alex Cora
Pitching Coach: Andrew Bailey
Bullpen Coach: Chris Holt
Basic Bullpen Snapshot
Bullpen Power Ranking:
#9
Pitchers on Roster:
14
Bullpen IP (prev 7 days):
19.2
Bullpen ERA (prev 7 days):
2.29

Bullpen Pitchers

ROLE PLAYERS
Aroldis Chapman
Role:
Closer
Throws:
L
Effective Rtg:
92.7
Fatigue %:
-9.8
IP 2025:
58.1
ERA:
1.23
Outings:
64
FIP:
1.72
Pitch Arsenal:
FF SI SL FS
Player Profile
LH RELIEVERS
Justin Wilson
Throws:
L
Effective Rtg:
86.1
Fatigue %:
-15.3
IP 2025:
46.0
ERA:
2.74
Outings:
58
FIP:
2.57
Pitch Arsenal:
FF SL FC
Player Profile
Steven Matz
Throws:
L
Effective Rtg:
79.8
Fatigue %:
-16.1
IP 2025:
74.1
ERA:
3.03
Outings:
50
FIP:
3.36
Pitch Arsenal:
SI CU CH
Player Profile
Chris Murphy
Throws:
L
Effective Rtg:
78.7
Fatigue %:
-5.0
IP 2025:
28.2
ERA:
2.51
Outings:
20
FIP:
4.92
Pitch Arsenal:
CU FF SL ST
Player Profile
RH RELIEVERS
Greg Weissert
Throws:
R
Effective Rtg:
77.0
Fatigue %:
-4.4
IP 2025:
61.2
ERA:
3.06
Outings:
68
FIP:
3.90
Pitch Arsenal:
FF SI SL CH ST
Player Profile
Garrett Whitlock
Throws:
R
Effective Rtg:
89.1
Fatigue %:
-7.8
IP 2025:
69.0
ERA:
2.35
Outings:
59
FIP:
2.31
Pitch Arsenal:
SI SL CH
Player Profile
Zack Kelly
Throws:
R
Effective Rtg:
80.8
Fatigue %:
-14.8
IP 2025:
30.2
ERA:
4.40
Outings:
23
FIP:
3.24
Pitch Arsenal:
FC ST FF SI CH
Player Profile
Justin Slaten
Throws:
R
Effective Rtg:
81.0
Fatigue %:
-13.5
IP 2025:
31.0
ERA:
4.65
Outings:
32
FIP:
3.79
Pitch Arsenal:
FC FF CU ST
Player Profile

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
Justin Wilson 2.0 42-27 9.00
0.1
16-9
0.1
6
6-4
1.1
6
20-14
Aroldis Chapman 3.0 50-35 3.00
1.0
19-11
1.0
9
11-10
1.0
9
20-14
Steven Matz 2.2 43-28 3.38
0.2
11-8
1.0
8
16-12
1.0
7
16-8
Chris Murphy 3.0 40-24 0.00
0.1
4-3
1.2
6
24-13
1.0
9
12-8
Greg Weissert 0.1 22-12 27.27
0.1
6
22-12
Garrett Whitlock 3.2 55-41 0.00
1.1
15-12
1.0
8
18-12
1.1
7
22-17
Zack Kelly 2.2 45-32 0.00
0.2
8-7
1.0
9
16-13
1.0
8
21-12
Justin Slaten 2.1 20-18 0.00
1.1
15-13
1.0
7
5-5
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

Bullpen Advanced Snapshot

Current State
Cumulative Fatigue & Effectiveness:
Effectiveness Rating:
83.2
Fatigue Factor:
-10.8
Current Overall Rating:
74.1
Bullpen Power Rankings
#9
#7
Cumulative Advanced Stats
BULLPEN  STATS IP ERA AVG FIP xFIP WOBA K% BB% ASSESSMENT
Cumulative   600.0 3.50 0.237 3.66 4.03 0.297 22.6% 8.6% [Above Avg]
BP  vs L 211.2 -- 0.230 3.46 - 0.286 21.2% 9.8% [Above Avg]
BP  vs R 330.1 -- 0.235 3.50 - 0.293 24.3% 7.8% [Above Avg]
Closing Out Games
Saves / Save Opportunities:
42 / 69
Save Percentage:
60.9%
Holds:
80
Boston Pitchers w/ multiple save opportunities:
Aroldis Chapman:
46.4%
Greg Weissert:
17.4%
Garrett Whitlock:
7.2%
Justin Slaten:
7.2%
Justin Wilson:
5.8%
Jordan Hicks:
4.3%
Steven Matz:
2.9%
Zack Kelly:
2.9%
Other Relievers:
5.8%
Upcoming Matchups
Athletics Bullpen
AthleticsATH
Sep-18  1:35 PM ET
Boston Bullpen
BostonBOS
Detailed Matchup
Boston Bullpen
BostonBOS
Sep-19  7:35 PM ET
Tampa Bay Bullpen
Tampa BayTB
Detailed Matchup
Team Starting Pitchers

Lucas Giolito (R)
Dustin May (R)
Kutter Crawford (R)
Garrett Crochet (L)
Brayan Bello (R)
Hunter Dobbins (R)
Kyle Harrison (L)
Payton Tolle (L)
Connelly Early (L)

IR & MiLB Prospects

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