Boston Red Sox· #63· Pitcher
Justin Slaten
Bats R · Throws R·Age 28 (Sep 15, 1997)·6' 4", 222 lb·Longview, TX, USA
2026 Pitching
ERA
5.64
WHIP
1.57
IP
22.1
K%
30.7
BB%
5.9
K/9
12.49
W-L
1-4
GS
0
SV
0
HLD
12
DiamondIQ WAR
22.3 IP · 2026
0.4
3.5 runs above replacement
FIP · 3.450.0
vs replacement · RP, 22.3 IP+3.5
FIP-based runs above replacement, park-adjusted, scaled by innings over runs-per-win. Reliever leverage is simplified (v1). Full methodology.
Pitch Arsenal · Statcast
Cutter44% · 93.4 · 22% whiff
Four-Seam26% · 96.6 · 20% whiff
Sweeper17% · 86.1 · 47% whiff
Sinker10% · 97.2 · 18% whiff
Curveball2% · 84.6 · 50% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | Boston Red Sox | 1 | 4 | 5.64 | 26 | 0 | 0 | 22.1 | 31 | 6 | 1.57 | 12.49 |
| 2025 | Boston Red Sox | 2 | 4 | 4.24 | 36 | 0 | 3 | 34.0 | 25 | 10 | 1.09 | 6.62 |
| 2024 | Boston Red Sox | 6 | 2 | 2.93 | 44 | 0 | 2 | 55.1 | 58 | 9 | 1.01 | 9.43 |
Recent Games
Jul 11 @ New York MetsW
0.2 IP, 0 ER, 2 K, 1 BB
Jul 9 @ Chicago White SoxW
1.0 IP, 0 ER, 1 K, 0 BB
Jul 7 @ Chicago White SoxW
0.2 IP, 0 ER, 2 K, 0 BB
Jul 5 @ Los Angeles AngelsW
1.0 IP, 1 ER, 1 K, 0 BB
Jun 30 vs Washington NationalsL
0.2 IP, 1 ER, 2 K, 0 BB
Jun 28 vs New York YankeesW
1.0 IP, 0 ER, 1 K, 0 BB
Jun 27 vs New York YankeesW
0.2 IP, 0 ER, 2 K, 0 BB
Jun 24 @ Colorado RockiesL
1.0 IP, 2 ER, 1 K, 0 BB
Jun 23 @ Colorado RockiesW
1.0 IP, 0 ER, 0 K, 0 BB
Jun 19 @ Seattle MarinersW
0.1 IP, 0 ER, 1 K, 0 BB