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Justin Slaten BOS RP R 60IL 

Born: 09/15/1997 Age: 27

FanGraphs Player Page

2025 OPL OPL Player Page

Signed By

50 Shades of Sonny Gray for $3

On MLB 40-man: NO
Acquired: Trade (NYM) Dec'23

Sat 8/09 Sun 8/10 Mon 8/11
@SDP 8:40 PM EDT @SDP 4:10 PM EDT @HOU 8:10 PM EDT

Positions
RP
2026 Earned Positions
RP

All Leagues
Average $2.37 Median $2.00
FanGraphs Points
Average $2.29 Median $2.00

All Leagues
Average $2.10 Median $2.00
FanGraphs Points
Average $1.90 Median $2.00

Roster%
52.6%
Change
7Day 0%
30Day 0.61%

2025 OPL 2025 OPL Round 5
OPL Roster%
0.00%
OPL Average Salary
$0.00


August 5, 2025 3:59 PM : Slaten (shoulder) threw off a mound at Fenway Park on Tuesday, Rob Bradford of WEEI.com reports.
Analysis: Slaten looked to be throwing at full effort in his first time tossing from the bump since he landed on the injured list in early June due to right shoulder inflammation. The right-hander will surely require some rehab appearances before being activated from the 60-day injured list, and it's not clear when he might be ready for game action in the minors.

MLB Stats

Pitching

YearTeamGGSIP SV HLD K H BB HBP HR P/IP Pts
2024BOS44055.12135847924 6.92 383.07
2025BOS24023.1341614701 7.11 165.97

MILB Stats

Pitching

YearTeamGGSIP SV HLD K H BB HBP HR P/IP Pts
2019TEX (R)101.00010000 9.4 9.40
2019TEX (A-)101015.1002121702 3.6 55.27
2021TEX (A+)201982.1001109331417 3.32 273.37
2022TEX (CPX)101.00020000 11.4 11.40
2022TEX (AA)25550.20364494806 3.35 169.73
2023TEX (AA)35151.12876411609 6.01 308.57
2023TEX (AAA)508.101103401 6.43 53.57
2024BOS (AA)100.10111100 8.61 2.87

Recent Games

Last 10 MLB Games

DateTeamOpponentGSWinSaveHoldIPTBF RERHKBBHBPHR Pts
May 28, 2025 BOS @MIL 0 0 0 0 0.1 3 2 0 1 0 0 0 0 -0.13
May 27, 2025 BOS @MIL 0 0 0 1 1.1 5 0 0 0 1 1 0 0 12.87
May 24, 2025 BOS BAL 0 0 0 0 1.0 4 0 0 1 0 1 0 0 1.80
May 23, 2025 BOS BAL 0 0 0 1 0.2 3 0 0 1 1 0 0 0 8.33
May 20, 2025 BOS NYM 0 0 0 1 1.2 4 0 0 0 0 0 0 0 16.33
May 19, 2025 BOS NYM 0 0 0 1 1.1 4 0 0 0 1 0 0 0 15.87
May 14, 2025 BOS @DET 0 0 0 0 1.0 3 0 0 0 1 0 0 0 9.40
May 13, 2025 BOS @DET 0 0 0 0 1.0 3 0 0 0 3 0 0 0 13.40
May 9, 2025 BOS @KCR 0 0 0 0 1.1 4 0 0 0 0 0 0 0 9.87
May 8, 2025 BOS TEX 0 1 0 0 1.1 4 0 0 0 0 0 0 0 9.87
Totals 0 1 0 4 11.0 37 2 0 3 7 2 0 0 97.60

Last 10 MILB Games

DateLevelTeamOpponentGSWinSave IPTBFRERHKBBHBPHR
Aug 23, 2024 AA POR SOM 0 0 0 0.1 3 1 1 1 1 1 0 0
Sep 24, 2023 AAA RR @TAC 0 0 0 2.0 8 1 1 1 2 1 0 1
Sep 22, 2023 AAA RR @TAC 0 0 0 0.2 5 0 0 1 2 2 0 0
Sep 20, 2023 AAA RR @TAC 0 0 0 1.2 6 0 0 0 1 1 0 0
Sep 17, 2023 AAA RR LV 0 1 0 2.0 7 0 0 1 2 0 0 0
Sep 13, 2023 AAA RR LV 0 0 0 2.0 6 0 0 0 3 0 0 0
Sep 8, 2023 AA FRI NWA 0 0 0 2.0 7 0 0 0 4 1 0 0
Sep 4, 2023 AA FRI NWA 0 0 0 2.0 8 1 1 3 3 0 0 0
Aug 30, 2023 AA FRI CC 0 0 0 2.0 7 0 0 0 5 1 0 0
Aug 25, 2023 AA FRI @MID 0 1 0 2.0 7 0 0 0 1 2 0 0
Totals 0 2 0 16.2 64 3 3 7 24 9 0 1

Avg Salary & Roster%

Last 30 days

2026 Position Eligibility Progress

To gain eligibility, a player must have 5 GS or 10 G at a position in the majors, or 20 G at a position in the minors.

Transaction History

Date Transaction Type Team Salary
April 18, 2024 9:17 AM add 🐈‍⬛ Kansas City Katz 🐈 $2
July 3, 2024 2:11 PM move Kneel before Zod (from 🐈‍⬛ Kansas City Katz 🐈) $2
July 16, 2024 7:51 AM cut Kneel before Zod $1
August 16, 2024 10:21 AM add Madrigal Mystery Tour $1
October 10, 2024 1:03 AM increase Madrigal Mystery Tour $3
March 30, 2025 1:24 PM move 50 Shades of Sonny Gray (from Madrigal Mystery Tour) $3

Recent Trades for Justin Slaten in FanGraphs Points

Date Proposing Team Proposing Team Gives Accepting Team Accepting Team Gives
June 17, 2025 4:28 PM Black Magic Ballclub Cole Ragans KCR SP L $22 60IL 
Alex Vesia LAD RP L $1
Justin Slaten BOS RP R $1 60IL 
Max Meyer MIA SP R $1 60IL
Tyler Soderstrom ATH C/1B/OF L $3 
Dalton Rushing LAD C/OF L $2
 Sunflower Seed Finger ☝️ Aroldis Chapman BOS RP L $7 
Carlos Rodon NYY SP L $12 
Devin Williams NYY RP R $15 
Jeremy Pena HOU SS R $5 
Evan Carter TEX OF L $6 10IL 
$15 loan
April 30, 2025 9:24 AM Reset Justin Slaten BOS RP R $1 60IL 
 MillerTime Zebby Matthews MIN SP R $5 
April 15, 2025 10:26 AM West Richfield Street Turkeys Juan Brito CLE AAA 1B/2B/3B S $1
Justin Slaten BOS RP R $1 60IL 
 Murphy's Law Tommy Edman LAD 2B/SS/3B/OF S $14 10IL 
$14 loan
April 4, 2025 9:43 AM Just the FIP Zack Wheeler PHI SP R $34 
Juan Soto NYM OF L $61 
Wilyer Abreu BOS OF L $5 
Jonathan Aranda TBR 1B/2B L $6 10IL
Justin Slaten BOS RP R $3 60IL 
Mason Miller ATH RP R $10 
$37 loan 		GF Chaunceys Salvador Perez KCR C/1B R $6 
Ronald Acuña Jr. ATL OF R $36 10IL 
Grayson Rodriguez BAL SP R $15 60IL 
CJ Abrams WSN SS L $7
Dylan Crews WSN OF R $7 60IL
JJ Wetherholt STL AAA SS L $1
March 30, 2025 3:29 PM Cape Cod Coyotes Junior Caminero TBR 3B R $10 
 The Harris-ment Alex Bregman BOS 3B R $28
Justin Slaten BOS RP R $1 60IL 
March 29, 2025 1:23 PM 50 Shades of Sonny Gray Spencer Steer CIN 1B/OF R $8 
$10 loan 		Madrigal Mystery Tour Justin Slaten BOS RP R $3 60IL 
March 25, 2025 4:17 PM Hot Pizza 🍕 Victor Scott II STL OF L $1 
 88 mph 💨 Justin Slaten BOS RP R $2 60IL 
March 15, 2025 8:28 PM 🐡 Salmón de Campusano 🐡 Justin Slaten BOS RP R $1 60IL 
Kumar Rocker TEX AAA SP R $3
Colt Emerson SEA AA SS L $1
 AKA Big Papi Clay Holmes NYY SP/RP R $7 
Nick Yorke PIT AAA 2B/OF R $5
$8 loan
March 13, 2025 12:19 PM Paper Falls Everywhere 🗽 Tyler Soderstrom OAK C/1B/OF L $2 
Colson Montgomery CHW SS/3B L $1 
Kumar Rocker TEX AAA SP R $3
 Troicinet MacKenzie Gore WSN SP L $8 
Justin Slaten BOS RP R $1 60IL 
$4 loan
February 27, 2025 6:37 PM The Pendletones Trevor Story BOS SS R $3 
Justin Slaten BOS RP R $5 60IL 
 Mallard Express 🦆🚂 Evan Phillips LAD RP R $3 60IL
Zack Gelof ATH AAA 2B R $5