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Team bullpen data and usage tracking

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

Boston
Team Record: 20 - 19
Head Coach: Alex Cora
Pitching Coach: Andrew Bailey
Pitcher Snapshot
Pitcher Impact Rating:
71
IP (last 7 gm):
3.1
ERA (last 7 gm):
13.51
Team BP Power Rank:
#14

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 15 5.93 13.20 57 3.58 15.8% 8.8% 1.8% 1% 0.33 0.212 0.281 0.300 0.589
2025 SpringTr 5 3.86 4.20 20 3.70 20.0% 10.0% 0.0% 0% 1 0.222 0.300 - 0.578
2025: Home 6 2.84 6.10 22 3.33 33.3% 0.0% 0.0% 0% 0.67 0.136 0.136 - 0.318
2025: Away 9 8.59 7.10 35 4.33 33.3% 0.0% 0.0% 1% 0.13 0.267 0.371 - 0.771
2025: Vs L 14 - 6.00 25 4.00 0.0% 0.0% 0.0% % 0.17 0.143 0.280 - 0.423
2025: Vs R 15 - 7.20 32 4.50 50.0% 0.0% 0.0% % 0.5 0.258 0.281 - 0.700
2025 Pitch Arsenal
Game Logs
Game Date Opponent IP PA R H 2B 3B HR BB SO SB CS NP-S AVG
2025-05-08 vs Rangers 1.10
 4 0 0 0 0 0 0 0 0 0 13-8 0.21
2025-05-04 vs Twins 1.00
8
 6 2 3 1 0 0 0 0 0 0 19-15 0.23
2025-05-01 @ Blue Jays 1.00
8
 7 3 3 1 0 1 1 0 0 0 29-17 0.19
2025-04-30 @ Blue Jays 0.10
10
 4 1 1 0 0 0 2 0 0 0 11-5 0.14
2025-04-26 @ Guardians 1.00
8
 4 0 0 0 0 0 1 1 0 0 19-12 0.12
2025-04-21 vs White Sox 1.00
9
 3 0 0 0 0 0 0 1 0 0 12-10 0.13
2025-04-19 vs White Sox 1.00
8
 3 0 0 0 0 0 0 2 0 0 15-10 0.14
Advanced Stats
Advanced Stats will be released after the All-Star break

Bullpen Usage & Stats

Last 7 Days
Player IP NP-S ERA May-8 May-7 May-6 May-5 May-4 May-3 May-2
Justin Slaten 2.1 32-23 13.51
1.1
13-8
1.0
8
19-15
Justin Wilson 2.2 35-24 0.00
1.1
5
19-13
1.0
9
14-11
0.1
7
2-0
Liam Hendriks 4.0 36-24 0.00
2.0
18-12
1.0
9
8-5
1.0
9
10-7
Aroldis Chapman 1.0 18-11 9.00
1.0
9
18-11
Tanner Houck 0 0-0 0.00
Sean Newcomb 4.0 77-46 0.00
4.0
6
77-46
Brennan Bernardino 3.0 46-32 0.00
1.0
7
7-5
1.1
4
29-20
0.2
6
10-7
Chris Murphy 0 0-0 13.53
Greg Weissert 3.2 56-37 0.00
1.0
8
11-7
1.2
7
31-20
1.0
8
14-10
Garrett Whitlock 3.0 56-33 6.00
1.0
24-13
2.0
6
32-20
Kutter Crawford 0 0-0 9.00
Garrett Crochet 0 0-0 0.00
Zach Penrod 0 0-0 9.00
Richard Fitts 0 0-0 7.20
Hunter Dobbins 5.2 92-59 6.36
5.2
1
92-59
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:
15
Games Started this Season:
0
Pitchers versus LH batters:
Yes
Pitchers versus RH batters:
Yes
Avg Inning when called:
8
Avg Run Diff when called:
1.13
Pitches over 30 pitches:
No
Pitches before the 8th:
Rarely
Pitches back to back days:
Rarely
Other Boston Pitchers

Justin Wilson (L)
Liam Hendriks (R)
Aroldis Chapman (L)
Sean Newcomb (L)
Brennan Bernardino (L)
Chris Murphy (L)
Greg Weissert (R)
Garrett Whitlock (R)
Zach Penrod (L)
Justin Slaten (R)
Hunter Dobbins (R)

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