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Pitcher Data and Usage Tracking

Justin Slaten
Justin Slaten
Throws: R
Primary Role(s): Reliever
Age: 28

Boston
Team Record: 83 - 69
Head Coach: Alex Cora
Pitching Coach: Andrew Bailey
Pitcher Snapshot
Pitcher Impact Rating:
70
IP (last 7 gm):
3.2
ERA (last 7 gm):
4.92
Team BP Power Rank:
#9

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 32 4.65 31.0 126 3.63 18.3% 7.1% 2.4% - 0.7 0.224 0.278 0.302 0.606
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 15 1.65 16.1 57 3.63 19.3% 3.5% 1.8% - 1.19 0.164 0.193 - 0.429
2025: Away 17 7.98 14.2 69 3.62 17.4% 10.1% 2.9% - 0.38 0.279 0.348 - 0.758
2025: Vs L 30 - 13.2 56 3.88 16.1% 10.7% 1.8% - 0.72 0.200 0.286 - 0.546
2025: Vs R 32 - 17.1 70 3.49 20.0% 4.3% 2.9% - 0.68 0.242 0.271 - 0.650
2025 Pitch Arsenal
Game Logs
Game Date Opponent IP PA R H 2B 3B HR BB SO SB CS NP-S AVG
2025-09-17 (BOS) vs Athletics 1.1
 4 0 0 0 0 0 0 1 0 0 15-13 0.22
2025-09-16 (BOS) vs Athletics 1.0
7
 3 0 0 0 0 0 0 0 0 0 5-5 0.23
2025-09-10 (BOS) @ Athletics 0.1
5
 4 2 2 1 0 0 1 0 0 0 10-4 0.24
2025-09-09 (BOS) @ Athletics 1.0
7
 5 0 2 0 0 0 0 1 0 0 18-13 0.23
2025-09-05 (BOS) @ D-backs 1.0
8
 7 4 4 0 0 1 0 1 0 0 18-13 0.22
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
Advanced Stats
Advanced Stats will be released after the All-Star break

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 Slaten 2.1 20-18 4.92
1.1
15-13
1.0
7
5-5
Justin Wilson 2.0 42-27 6.00
0.1
16-9
0.1
6
6-4
1.1
6
20-14
Aroldis Chapman 3.0 50-35 5.41
1.0
19-11
1.0
9
11-10
1.0
9
20-14
Steven Matz 2.2 43-28 2.08
0.2
11-8
1.0
8
16-12
1.0
7
16-8
Dustin May 0 0-0 7.20
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 3.86
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
Kutter Crawford 0 0-0 9.00
Garrett Crochet 0 0-0 0.00
Zack Kelly 2.2 45-32 0.00
0.2
8-7
1.0
9
16-13
1.0
8
21-12
Hunter Dobbins 0 0-0 5.59
Kyle Harrison 0 0-0 6.77
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:
32
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:
1.31
Pitches over 30 pitches:
No
Pitches before the 8th:
Yes
Pitches back to back days:
Rarely
Other Boston Pitchers

Justin Wilson (L)
Aroldis Chapman (L)
Steven Matz (L)
Chris Murphy (L)
Greg Weissert (R)
Garrett Whitlock (R)
Zack Kelly (R)
Justin Slaten (R)

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