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Justin Slaten
Projections & Stats

BOS

Player Information

TeamBOS PosRP Age28
ThrowsR $/Game-0.6 RCL R%0
Razzball 2026 rest of season projections for Justin Slaten of the Boston Red Sox have him as the #403 ranked player and #101 relief pitcher (RP) worth $-6.1 in standard 12 team 5x5 mixed leagues for fantasy baseball.

Jump to: Season Stats || Monthly Stats || Game Log || Player Rater || 2026 Fantasy Outlook
Grey Albright's 2026 Player Summary

Justin Slaten Stats

GGSQSWLSVHLDIPTBFHERHRBBKERAFIPWHIPBABIPH/9K/9BB/9HR/9K%BB%$
Last 7 Days40011013.717620044.910.851.620.46214.69.70.00.023.50.0-5.7
Last 30 Days110012049.74616822117.454.061.860.45214.810.21.91.923.94.3-9.7
Season2100140918.383241245235.894.241.580.40811.811.32.52.027.76.0-14.4
ROS Proj32002211331.61322813411323.663.781.230.2918.09.13.11.124.18.1-6.1

Justin Slaten 2026 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)4354.0443.711.127.3-6.0457
Preseason (Steamer)65003301364.8272582962224.223.871.238.63.01.122.87.9-5.3418
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$
Jun 28NYYW101.05161200100.001.101.0019.9
Jun 27NYYHLD70.72120000200.000.000.00-2.0
Jun 24@COLL81.071942201018.001.104.00-49.2
Jun 23@COL81.0371000000.003.101.00-14.8
Jun 19@SEAHLD70.3160000100.000.000.00-12.9
Jun 18TOR81.04152000100.001.092.00-7.5
Jun 13TEX61.04161000100.001.101.00-7.3
Jun 10@TB80.751932200125.710.004.50-99.9
Jun 7@NYYL80.762534412151.430.006.00-99.9
Jun 5@NYYHLD81.0340000000.003.110.00-14.6
May 30@CLEHLD71.36211001200.002.311.502.5
May 22MINL+BSV70.772844411251.430.007.50-99.9
May 19@KCHLD71.03120000200.00-0.890.000.5
May 18@KCHLD71.03170000200.00-0.890.000.5
May 14PHI60.7381000100.000.001.50-9.9
May 13PHIHLD71.04141000000.003.101.00-14.8
May 10TB71.03150000100.001.110.00-7.0
Apr 4SD71.04191000100.001.191.00-7.3
Apr 3SDHLD81.0390000100.001.180.00-7.0
Mar 28@CINL110.33111101100.000.006.00-99.9
Mar 26@CINHLD71.04170001200.002.631.000.2

Justin Slaten Stats | Season

Justin Slaten stats and 5x5 fantasy value from 2013-2026.
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
2025BOS3600243713734.02716310254.243.691.090.2420.82.66.6-9.4
2026BOS210014098318.0241245235.894.241.580.4082.02.511.3-14.4

Justin Slaten Stats | Monthly

Justin Slaten 2026 fantasy value by month for 5x5 leagues.
GGSQSWLSVHLDIPHERKBBERAFIPWHIPBABIPH/9K/9BB/9HR/9$$/G$
April20000012.010200.001.030.500.2004.59.00.00.0-8.1-2.0
May60001035.364716.755.841.310.3089.911.81.73.4-13.3-13.1
June100012038.3158918.644.351.920.4649.99.71.12.2-15.3-13.5

Justin Slaten Fantasy Baseball | Rest of Season Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN-10.0-2.50.3-12.30.30.40.3105427
MLB 10 Y!-10.0-2.50.3-12.30.30.40.3105429
MLB 12 ESPN-6.1-2.60.4-8.50.30.40.3101403
MLB 12 Y!-6.1-2.60.4-8.50.30.40.3101403
MLB 14 ESPN-4.0-2.80.3-6.30.30.40.399415
MLB 14 Y!-4.0-2.80.3-6.30.30.40.399418
MLB 15 ESPN-3.0-2.90.4-5.40.30.40.394440
MLB 15 Y!-3.0-2.90.4-5.40.30.40.394440
MLB 16 ESPN-2.3-2.80.4-4.90.30.50.497445
MLB 16 Y!-2.3-2.80.4-4.90.30.50.497445
AL 10
NL 10
AL 12-3.3-2.4-0.1-4.60.00.20.256316
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 12-2.5-2.60.6-5.40.50.50.30.00.080166
6x6 (QS) Y! 12-2.5-2.60.6-5.40.50.50.30.00.080166
6x6 (Holds) ESPN 12-3.3-1.50.8-17.30.60.70.60.010.340122
6x6 (Holds) Y! 12-3.3-1.50.8-17.30.60.70.60.010.340122
7x7 ESPN 12-4.8-1.40.4-21.40.40.40.30.014.138123
7x7 Y! 12-4.8-1.40.4-21.40.40.40.30.014.138123

Justin Slaten Fantasy Baseball | Preseason Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN-7.7-3.00.3-9.20.20.1-0.190409
MLB 10 Y!-1.0-1.40.4-2.60.10.2-0.185275
MLB 12 ESPN-5.3-3.20.3-6.90.20.2-0.191418
MLB 12 Y!-1.3-1.60.4-2.80.10.2-0.285305
MLB 14 ESPN-3.0-3.30.3-4.90.20.30.194426
MLB 14 Y!-1.3-1.90.4-2.70.10.2-0.384333
MLB 15 ESPN-2.5-3.40.3-4.40.20.40.091446
MLB 15 Y!-1.3-2.00.4-2.60.10.2-0.482350
MLB 16 ESPN-2.1-3.40.4-4.30.30.40.189466
MLB 16 Y!-1.3-2.00.4-2.80.10.3-0.380369
AL 10-6.5-2.60.0-7.70.00.10.152331
NL 10
AL 12-2.6-2.8-0.1-3.70.00.10.158334
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 12-2.6-3.20.5-4.60.30.3-0.10.082179
6x6 (Holds) ESPN 12-2.6-3.20.5-4.60.30.3-0.10.054179
7x7 ESPN 12-16.8-4.21.0-12.80.00.2-0.50.0-5.7114270

Justin Slaten 2026 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)4354.0443.711.127.3-6.0457
Preseason (Steamer)65003301364.8272582962224.223.871.238.63.01.122.87.9-5.3418
Prospectonator

Justin Slaten Fantasy Outlook For 2026

Grey Albright Player Summary

Player data for Justin Slaten maintained by | Updated: