Justin Slaten 2025 season stats

Justin Slaten played 36 games for the Boston Red Sox in the 2025 MLB regular season, with 2 wins, a 4.24 ERA and 25 strikeouts.

All Justin Slaten seasonsBoston Red Sox

2025 regular season

GP
36
R
19
H
27
K
25
L
4
W
2
BB
10
ER
16
GS
0
IP
34.0
SV
3
W%
0.3

2025 postseason

GP
2
R
1
H
1
K
1
L
0
W
0
BB
1
ER
1
GS
0
IP
2.0
SV
0
W%
0.0

2025 splits

Totals, from the 36 regular-season games in the log.

Justin Slaten, 2025 splits
GP: Games the player appeared in, however briefly.IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.H: Times the batter reached base by hitting the ball, without help from an error.R: Runs — scored by the batter, or allowed by the pitcher.ER: Earned runs allowed — runs that scored without help from an error.BB: Times the batter reached first base on four balls.K: Batters this pitcher struck out.HR: Home runs hit.ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.
All games3634.0271916102534.24
Home1617.093331111.59
Away2017.018161371426.88
Wins2020.181131810.44
Losses1613.21918157729.88
March32.034411018.00
April98.12103800.00
May1213.09753713.46
August22.03111314.50
September108.210662616.23

What the columns mean: IP · H · R · BB · K · HR · ERA

By opponent

Justin Slaten, 2025, by opponent
GP: Games the player appeared in, however briefly.IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.H: Times the batter reached base by hitting the ball, without help from an error.R: Runs — scored by the batter, or allowed by the pitcher.ER: Earned runs allowed — runs that scored without help from an error.BB: Times the batter reached first base on four balls.K: Batters this pitcher struck out.HR: Home runs hit.ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.
vs ARI11.044401136.00
vs ATH43.24221204.91
vs BAL42.264422013.50
vs CHW33.00000300.00
vs CLE22.01001200.00
vs DET32.20001400.00
vs KC11.10000000.00
vs MIL21.21201100.00
vs MIN11.032200018.00
vs NYM23.00000100.00
vs PIT22.03111314.50
vs STL11.00000100.00
vs TB32.11000400.00
vs TEX33.10000100.00
vs TOR43.14433018.10

What the columns mean: IP · H · R · BB · K · HR · ERA

2025 games

Justin Slaten, last 15 games, 2025 regular season
IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.H: Times the batter reached base by hitting the ball, without help from an error.R: Runs — scored by the batter, or allowed by the pitcher.ER: Earned runs allowed — runs that scored without help from an error.BB: Times the batter reached first base on four balls.K: Batters this pitcher struck out.HR: Home runs hit.
Sep 26, 2025vs DETW 4-30.2000100
Sep 23, 2025@ TORW 4-11.0000000
Sep 20, 2025@ TBW 6-30.1100000
Sep 19, 2025@ TBW 11-71.0000020
Sep 17, 2025vs ATHW 5-4 F/101.1000010
Sep 16, 2025vs ATHL 2-11.0000000
Sep 10, 2025@ ATHL 5-40.1222100
Sep 9, 2025@ ATHW 6-01.0200010
Sep 5, 2025@ ARIL 10-51.0444011
Sep 2, 2025vs CLEW 11-71.0100010
Aug 31, 2025vs PITW 5-21.0111021
Aug 29, 2025vs PITL 4-21.0200110
May 28, 2025@ MILL 6-5 F/100.1120000
May 27, 2025@ MILL 5-1 F/101.1000110
May 24, 2025vs BALW 6-5 F/101.0100100

What the columns mean: IP · H · R · BB · K · HR

All 36 gamesOnly the last 15 games
Justin Slaten, game by game, 2025 regular season
IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.H: Times the batter reached base by hitting the ball, without help from an error.R: Runs — scored by the batter, or allowed by the pitcher.ER: Earned runs allowed — runs that scored without help from an error.BB: Times the batter reached first base on four balls.K: Batters this pitcher struck out.HR: Home runs hit.
Sep 26, 2025vs DETW 4-30.2000100
Sep 23, 2025@ TORW 4-11.0000000
Sep 20, 2025@ TBW 6-30.1100000
Sep 19, 2025@ TBW 11-71.0000020
Sep 17, 2025vs ATHW 5-4 F/101.1000010
Sep 16, 2025vs ATHL 2-11.0000000
Sep 10, 2025@ ATHL 5-40.1222100
Sep 9, 2025@ ATHW 6-01.0200010
Sep 5, 2025@ ARIL 10-51.0444011
Sep 2, 2025vs CLEW 11-71.0100010
Aug 31, 2025vs PITW 5-21.0111021
Aug 29, 2025vs PITL 4-21.0200110
May 28, 2025@ MILL 6-5 F/100.1120000
May 27, 2025@ MILL 5-1 F/101.1000110
May 24, 2025vs BALW 6-5 F/101.0100100
May 23, 2025vs BALW 19-50.2100010
May 20, 2025vs NYMW 2-01.2000000
May 19, 2025vs NYMW 3-11.1000010
May 14, 2025@ DETL 6-51.0000010
May 13, 2025@ DETL 10-9 F/111.0000030
May 9, 2025@ KCL 2-1 F/121.1000000
May 8, 2025vs TEXW 5-01.1000000
May 4, 2025vs MINL 5-41.0322000
May 1, 2025@ TORL 4-21.0333101
Apr 30, 2025@ TORL 7-6 F/100.1110200
Apr 26, 2025@ CLEW 7-31.0000110
Apr 21, 2025vs CHWW 4-21.0000010
Apr 19, 2025vs CHWW 4-3 F/101.0000020
Apr 16, 2025@ TBW 1-01.0000020
Apr 12, 2025@ CHWL 3-21.0000000
Apr 9, 2025vs TORL 2-1 F/111.0000000
Apr 6, 2025vs STLW 5-4 F/101.0000010
Apr 3, 2025@ BALW 8-41.0100010
Mar 31, 2025@ BALL 8-50.0344100
Mar 30, 2025@ TEXL 3-21.0000000
Mar 27, 2025@ TEXW 5-21.0000010

What the columns mean: IP · H · R · BB · K · HR

Source: ESPN public MLB data, 2025 season.