Justin Slaten fantasy outlook 2027
Justin Slaten ranks 501st overall in our 2027 fantasy baseball rankings, 170th among relief pitchers, and 747th in points leagues. The 2027 projection is 3 W, 4.09 ERA, 1.23 WHIP, 44 K in 44 IP. In 2026 he posted a 4.60 ERA and 39 strikeouts over 31.33 innings across 36 appearances. He plays next season at 29.
Overall (5x5)
#501
of 1184
Relief pitcher
#170
of 409
Points leagues
#747
123 proj. pts
Dynasty
#501
Keeper value
Round 42
12-team draft
Pitching: projection and recent seasons
| Season | G | GS | IP | W | SV | HLD | K | K% | BB% | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2027 projection | 45 | 0 | 44.0 | 3 | 0 | 21 | 44 | 23.8% | 6.9% | 4.09 | 1.23 |
| 2026 | 36 | 0 | 31.1 | 2 | 0 | 17 | 39 | 28.5% | 5.8% | 4.60 | 1.37 |
| 2025 | 36 | 0 | 34.0 | 2 | 3 | 7 | 25 | 18.2% | 7.3% | 4.24 | 1.09 |
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2026 splits
What hitters did against him, by the hand they bat with and where he pitched.
| Split | PA | AVG | OBP | SLG | HR | K |
|---|---|---|---|---|---|---|
| vs left-handed hitters | 71 | .265 | .286 | .441 | 2 | 23 |
| vs right-handed hitters | 66 | .288 | .354 | .390 | 2 | 16 |
| Home | 64 | .295 | .317 | .443 | 2 | 17 |
| Away | 73 | .258 | .319 | .394 | 2 | 22 |
2026 Statcast and advanced numbers
xBA against
.221
xSLG against
.329
xwOBA against
.264
FIP
3.04
ERA
4.60
31.33 IP
WAR
0.6
Expected stats come from Statcast as MLB's Stats API publishes them: what the quality of contact was worth, before defense and luck.
Ranked around Justin Slaten
- #498John KingRPMIA
- #499Kyle Karros3BCOL
- #500Ronel BlancoSPHOU
- #502Janson JunkSPMIA
- #503Leody TaverasOFBAL
- #504Jeff McNeil2BATH
Best fantasy teammates
Boston Red Sox depth chart- #66Wilyer AbreuOFBOS
- #71Ceddanne RafaelaOFBOS
- #78Aroldis ChapmanRPBOS
- #81Sonny GraySPBOS
- #93Jarren DuranOFBOS
- #109Payton TolleSPBOS
Common questions
Where should I draft Justin Slaten in 2027?
Justin Slaten is 501st on our 2027 board for 5x5 roto leagues, about round 42 in a 12-team draft, and 747th in standard points leagues.
Is Justin Slaten a keeper for 2027?
He is worth a round 42 pick in a 12-team league, so he is a value to keep at any cost later than that round.
What positions is Justin Slaten eligible at?
By 2026 games (20 at a position, or 5 starts or 8 relief outings for pitchers) he qualifies at RP. Leagues set their own thresholds.
What team does Justin Slaten play for?
Justin Slaten is listed with the Boston Red Sox.
More: 2027 relief pitcher rankings, dynasty rankings and keeper values. He is the 501st pick on our board.
By the Parlae deskPlayer data updated Oct 14, 2026 at 7:53 AM ETHow this is builtReport a wrong number