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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

Future Primitive for $2

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

Wed 8/06 Thu 8/07 Fri 8/08
KCR 7:10 PM EDT --- @SDP 9:40 PM EDT

Positions
RP
2026 Earned Positions
RP

All Leagues
Average $2.39 Median $2.00
H2H FanGraphs Points
Average $2.46 Median $2.00

All Leagues
Average $2.20 Median $2.00
H2H FanGraphs Points
Average $1.80 Median $2.00

Roster%
52.29%
Change
7Day 1.83%
30Day 0.92%

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 5, 2024 5:59 PM add Grays Sports Almanac 📙 $1
October 10, 2024 12:46 AM increase Grays Sports Almanac 📙 $3
February 14, 2025 12:41 PM cut Grays Sports Almanac 📙 $0
February 27, 2025 12:23 AM add As the Pete Crow Flys $2
March 2, 2025 11:24 PM move Grays Sports Almanac 📙 (from As the Pete Crow Flys) $2
March 11, 2025 12:04 AM move Future Primitive (from Grays Sports Almanac 📙) $2

Recent Trades for Justin Slaten in H2H FanGraphs Points

Date Proposing Team Proposing Team Gives Accepting Team Accepting Team Gives
March 8, 2025 11:04 PM Grays Sports Almanac 📙 Jake Cronenworth SDP 1B/2B L $2 
Justin Slaten BOS RP R $2 60IL 
 Future Primitive Edward Cabrera MIA SP R $4 
Edwin Uceta TBR RP R $4
Matt Vierling DET 3B/OF R $3 
$7 loan
February 28, 2025 11:23 PM As the Pete Crow Flys Michael Wacha KCR SP R $3 
Reynaldo Lopez ATL SP R $4 60IL 
Oneil Cruz PIT SS/OF L $25 
Justin Slaten BOS RP R $2 60IL 
$8 loan 		Grays Sports Almanac 📙 Jesus Luzardo PHI SP L $9 
Hunter Greene CIN AAA SP R $7 15IL 
Lars Nootbaar STL OF L $6 
Logan O'Hoppe LAA C R $4 
August 31, 2024 7:43 PM Schwelly 2 Balls Ranger Suarez PHI SP L $7 
 Santa Rosa Smallball Javier Assad CHC SP R $6 60IL 
Justin Slaten BOS RP R $3 60IL 
$2 loan
July 3, 2024 1:56 PM Gonzilla 🦖 Xander Bogaerts SDP 2B/SS R $10 
Justin Slaten BOS RP R $2 60IL 
$8 loan 		Hill Valley Bulldogs Griffin Jax MIN RP R $1 
Nick Gonzales PIT 2B/SS R $3 
June 27, 2024 12:50 PM Shizzo and The 🧠 Aroldis Chapman PIT RP L $6 
Ryan Pressly HOU RP R $18 
Eloy Jimenez TBR CPX OF R $16
$35 loan 		B-WIN MAGIC Reed Garrett NYM RP R $1
Justin Slaten BOS RP R $4 60IL