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Pitcher Data and Usage Tracking

Justin Slaten
Justin Slaten
Throws: R
Primary Role(s): Reliever
Age: 27

Boston
Team Record: 78 - 63
Head Coach: Alex Cora
Pitching Coach: Andrew Bailey
Pitcher Snapshot
Pitcher Impact Rating:
74.4
IP (last 7 gm):
3
ERA (last 7 gm):
3.00
Team BP Power Rank:
#16

Pitcher Season Stats

Cumulative Stats
Season G ERA IP PA P/pa SO/pa BB/pa HR/pa SB/pa G/AO AVG OBP xWOBA OPS
2025 27 3.42 26.1 103 3.80 19.4% 7.8% 1.9% - 0.78 0.191 0.252 0.284 0.529
2025 SpringTr 5 3.86 4.2 20 3.70 20.0% 10.0% 0.0% - 1 0.222 0.300 - 0.578
2025: Home 13 1.93 14.0 50 3.74 20.0% 4.0% 2.0% - 1.42 0.188 0.220 - 0.491
2025: Away 14 5.11 12.1 53 3.85 18.9% 11.3% 1.9% - 0.4 0.196 0.283 - 0.566
2025: Vs L 26 - 13.0 49 3.98 16.3% 10.2% 0.0% - 0.67 0.136 0.224 - 0.360
2025: Vs R 27 - 13.1 54 3.70 22.2% 5.6% 3.7% - 0.93 0.240 0.278 - 0.678
2025 Pitch Arsenal
Game Logs
Game Date Opponent IP PA R H 2B 3B HR BB SO SB CS NP-S AVG
2025-09-02 (BOS) vs Guardians 1.0
8
 4 0 1 0 0 0 0 1 0 0 12-10 0.19
2025-08-31 (BOS) vs Pirates 1.0
7
 4 1 1 0 0 1 0 2 0 0 23-15 0.19
2025-08-29 (BOS) vs Pirates 1.0
7
 5 0 2 0 0 0 1 1 0 0 23-12 0.19
2025-05-28 (BOS) @ Brewers 0.1
10
 3 2 1 0 0 0 0 0 0 0 16-11 0.17
2025-05-27 (BOS) @ Brewers 1.1
7
 5 0 0 0 0 0 1 1 0 0 20-12 0.16
2025-05-24 (BOS) vs Orioles 1.0
8
 4 0 1 0 0 0 1 0 1 0 20-12 0.17
2025-05-23 (BOS) vs Orioles 0.2
8
 3 0 1 0 0 0 0 1 0 0 8-5 0.16
Advanced Stats
Advanced Stats will be released after the All-Star break

Bullpen Usage & Stats

Last 7 Days
Player IP NP-S ERA Sep-3 Sep-2 Sep-1 Aug-31 Aug-30 Aug-29 Aug-28
Justin Slaten 3.0 58-37 3.00
1.0
8
12-10
1.0
7
23-15
1.0
7
23-12
Justin Wilson 1.2 13-12 0.00
1.0
6
6-6
0.2
8
7-6
Aroldis Chapman 2.0 21-15 0.00
1.0
9
5-5
1.0
9
16-10
Steven Matz 4.2 57-39 3.86
1.0
14-10
1.2
7
23-17
1.0
8
8-5
1.0
9
12-7
Brennan Bernardino 3.1 56-35 8.11
0.2
17-11
1.0
9
11-8
0.2
6
21-9
1.0
9
7-7
Jordan Hicks 2.2 57-38 20.30
0.1
16-12
1.0
9
15-9
0.1
8
11-8
1.0
7
15-9
Dustin May 0 0-0 7.20
Greg Weissert 2.0 26-19 4.50
0.1
8
2-2
1.0
7
13-10
0.2
6
11-7
Garrett Whitlock 3.0 59-42 0.00
1.0
7
16-13
1.0
8
23-15
1.0
8
20-14
Kutter Crawford 0 0-0 9.00
Garrett Crochet 0 0-0 0.00
Zack Kelly 4.0 63-45 0.00
4.0
63-45
Hunter Dobbins 0 0-0 5.59
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
Advanced Pitcher Traits
Games Pitched this Season:
27
Games Started this Season:
0
Pitchers versus LH batters:
Yes
Pitchers versus RH batters:
Yes
Avg Inning when called:
7
Avg Run Diff when called:
1.26
Pitches over 30 pitches:
No
Pitches before the 8th:
Rarely
Pitches back to back days:
Rarely
Other Boston Pitchers

Justin Wilson (L)
Aroldis Chapman (L)
Steven Matz (L)
Brennan Bernardino (L)
Jordan Hicks (R)
Greg Weissert (R)
Garrett Whitlock (R)
Zack Kelly (R)
Justin Slaten (R)

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