Boston Red Sox· #57· Pitcher
Gregory Santos
Bats R · Throws R·Age 26 (Aug 28, 1999)·6' 3", 236 lb·San Cristobal, Dominican Republic
2026 Pitching
ERA
3.60
WHIP
1.60
IP
5.0
K%
4.5
BB%
13.6
K/9
1.80
W-L
0-0
GS
0
SV
0
HLD
0
DiamondIQ WAR
5.0 IP · 2026
0.0
0.1 runs above replacement
FIP · 4.50 (park 0.96)0.0
vs replacement · RP, 5.0 IP+0.1
FIP-based runs above replacement, park-adjusted, scaled by innings over runs-per-win. Reliever leverage is simplified (v1). Full methodology.
Pitch Arsenal · Statcast
Slider51% · 89.1 · 6% whiff
Sinker34% · 97.2 · 13% whiff
Four-Seam13% · 96.1 · 0% whiff
Changeup2% · 93.7 · 0% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | San Francisco Giants | 0 | 0 | 3.60 | 3 | 0 | 0 | 5.0 | 1 | 3 | 1.60 | 1.80 |
| 2025 | Seattle Mariners | 1 | 1 | 5.14 | 8 | 0 | 0 | 7.0 | 0 | 8 | 2.29 | 0.00 |
| 2024 | Seattle Mariners | 0 | 1 | 4.91 | 8 | 0 | 0 | 7.1 | 6 | 1 | 1.09 | 7.36 |
| 2023 | Chicago White Sox | 2 | 2 | 3.39 | 60 | 0 | 5 | 66.1 | 66 | 17 | 1.30 | 8.95 |
| 2022 | San Francisco Giants | 0 | 0 | 4.91 | 2 | 0 | 0 | 3.2 | 2 | 3 | 1.64 | 4.91 |