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Justin Slaten
Projections & Stats

BOS

Player Information

TeamBOS PosRP Age27
ThrowsR $/Game1.1 RCL R%3
Razzball 2025 rest of season projections for Justin Slaten of the Boston Red Sox have him as the #346 ranked player and #53 relief pitcher (RP) worth $-5.0 in standard 12 team 5x5 mixed leagues for fantasy baseball.

6/1/25 - Out (Shoulder) Slaten is dealing with a shoulder injury and has been placed on the 15-day injured list.
Jump to: Season Stats || Monthly Stats || Game Log || Player Rater || 2024 Fantasy Outlook
Grey Albright's 2025 Player Summary

Justin Slaten Stats

GGSQSWLSVHLDIPTBFHERHRBBKERAFIPWHIPBABIPH/9K/9BB/9HR/9K%BB%$
Last 7 Days
Last 30 Days80001048.329300270.002.070.600.1503.37.62.20.024.16.9-1.5
Season2400143423.39014917163.473.170.900.1975.46.22.70.417.87.8-6.5
ROS Proj2800113628.11192512310273.753.861.250.2838.08.63.21.023.08.7-5.1

Justin Slaten 2025 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)5259.0642.811.039.8-2.0310
Preseason (Steamer)65003351964.8272572867244.093.841.259.23.31.024.48.8-1.4302
Prospectonator

Justin Slaten Projections | Streamonator (Subscribe/login to see pitcher projections)

Justin Slaten daily MLB projections and fantasy value for probable starts in next 7-10 days. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".

Justin Slaten Projections | DFS (Subscribe to see DFS MLB projections)

Justin Slaten daily fantasy baseball projections for DFS sites such as DraftKings and FanDuel. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".

Justin Slaten Trade Value | Try our free Fantasy Baseball Trade Analyzer to evaluate trade offers.

Justin Slaten Game Log | Games Started

OPPDECIPBFPCHRERBBKERAFIPWHIPBABIPHRProj $Act $

Justin Slaten Game Log | Last 30 Day Relief Appearances

OPPDECIPStartIPBFPCHRERBBKHRERAFIPWHIP$
May 28@MIL100.33161200000.000.003.03-59.0
May 27@MILHLD71.35200001100.003.820.756.0
May 24BAL81.04201001000.006.072.00-26.0
May 23BALHLD80.7381000100.000.001.49-19.0
May 20NYMHLD71.74120000000.003.090.0016.9
May 19NYMHLD71.34120000100.001.600.0016.2
May 14@DET81.03110000100.001.100.009.2
May 13@DET81.03150000300.00-2.900.0024.2
May 9@KC81.34150000000.003.100.008.6
May 8TEXW51.34130000000.003.100.0035.8
May 4MINL81.061932200018.003.073.00-81.1
May 1@TOR81.072933310127.0019.074.00-99.9
Apr 30@TORL100.34111102000.000.009.09-66.6
Apr 26@CLE81.04190001100.004.031.00-4.7
Apr 21CHWSV91.03120000100.001.040.0057.7
Apr 19CHW81.03150000200.00-0.980.0016.7
Apr 16@TBSV91.03110000200.00-1.000.0065.2
Apr 12@CHW81.0390000000.002.990.001.7
Apr 9TOR81.0380000000.003.070.001.7
Apr 6STL71.03100000100.001.080.009.2
Apr 3@BAL71.04201000100.000.851.00-4.7
Mar 31@BAL80.0493441000.000.00-69.3
Mar 30@TEX81.0360000000.002.610.001.7
Mar 27@TEXSV91.03130000100.000.950.0057.7

Justin Slaten Stats | Season

Justin Slaten stats and 5x5 fantasy value from 2013-2025.
PeriodTeamGGSQSWLSVHLDBFIPHERHRBBKERAFIPWHIPBABIPHR/9BB/9K/9$
2013 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2014 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2015 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2016 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2017 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2018 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2019 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2021 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2022 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2023 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2024BOS44006221322455.0471849582.932.611.010.2890.71.59.4-1.3
2025BOS240014349023.014917163.473.170.900.1970.42.76.2-6.5

Justin Slaten Stats | Monthly

Justin Slaten 2025 fantasy value by month for 5x5 leagues.
GGSQSWLSVHLDIPHERKBBERAFIPWHIPBABIPH/9K/9BB/9HR/9$$/G$
March20000102.000100.002.030.000.0000.04.50.00.00.03.3
April80000208.010810.001.400.250.0591.19.01.10.05.23.4
May1200130413.095733.463.650.920.2056.24.92.10.7-2.5-5.0
July30010022.702336.744.151.120.0000.010.19.90.0-6.0-0.6
August20000011.700200.000.630.000.0000.010.80.00.0-9.40.1
September1000100210.01121101.803.431.100.3009.99.90.01.8-2.2-4.8

Justin Slaten Fantasy Baseball | Rest of Season Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN-11.4-2.80.0-12.00.10.2-0.753390
MLB 10 Y!-6.3-3.1-1.3-5.80.50.5-1.2110336
MLB 12 ESPN-5.0-3.00.0-5.90.20.2-0.553346
MLB 12 Y!-3.7-3.4-1.1-3.50.40.4-0.9102347
MLB 14 ESPN-1.9-3.10.0-3.00.20.3-0.453347
MLB 14 Y!-2.8-3.5-1.2-2.60.40.4-0.998356
MLB 15 ESPN-1.2-3.10.0-2.20.20.3-0.552363
MLB 15 Y!-2.1-3.6-1.1-2.00.40.4-0.9100361
MLB 16 ESPN-1.0-3.00.0-1.90.20.2-0.554369
MLB 16 Y!-1.4-3.6-1.0-1.60.50.4-0.898369
AL 10-17.2-2.50.0-18.20.00.1-0.124404
NL 10
AL 120.6-2.20.0-0.40.00.1-0.124249
NL 12

Justin Slaten Fantasy Baseball | Rest of Season Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 12-3.1-3.00.0-3.80.20.2-0.70.00.055144
6x6 (QS) Y! 12-2.9-3.3-0.9-2.80.30.3-0.80.00.0101191
6x6 (Holds) ESPN 12-15.1-2.6-0.7-4.50.10.3-2.20.0-9.173219
6x6 (Holds) Y! 12-3.1-3.4-0.9-1.30.00.1-0.80.0-1.277172
7x7 ESPN 12-1.9-2.6-0.4-3.90.10.2-1.20.02.349134
7x7 Y! 12-2.6-3.3-0.8-1.00.10.2-0.70.0-1.275165

Justin Slaten Fantasy Baseball | Preseason Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN-3.6-2.20.4-5.40.2-0.10.340273
MLB 10 Y!1.0-0.80.4-0.60.1-0.10.248211
MLB 12 ESPN-1.4-2.00.4-3.30.20.00.340302
MLB 12 Y!1.0-0.90.4-0.50.1-0.20.246247
MLB 14 ESPN0.2-1.70.3-1.80.20.10.440323
MLB 14 Y!1.3-0.80.5-0.20.1-0.30.247272
MLB 15 ESPN0.8-1.60.4-1.30.20.10.440339
MLB 15 Y!1.4-0.80.50.00.1-0.40.248291
MLB 16 ESPN1.1-1.50.4-1.10.30.10.439346
MLB 16 Y!1.3-0.80.5-0.10.1-0.40.248308
AL 10-2.0-1.70.0-3.20.00.00.218258
NL 10
AL 121.3-0.8-0.10.20.00.00.219242
NL 12

Justin Slaten Fantasy Baseball | Preseason Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 120.1-2.00.6-2.20.30.00.40.042117
6x6 (Holds) ESPN 120.1-2.00.6-2.20.30.00.40.051117
7x7 ESPN 122.3-0.81.2-5.30.2-0.60.10.05.738106

Justin Slaten 2025 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)5259.0642.811.039.8-2.0310
Preseason (Steamer)65003351964.8272572867244.093.841.259.23.31.024.48.8-1.4302
Prospectonator

Justin Slaten Fantasy Outlook For 2024

Grey Albright Player Summary

Player data for Justin Slaten maintained by | Updated: