Boston Red Sox· #57· Pitcher
Greg Weissert
Bats R · Throws R·Age 31 (Feb 4, 1995)·6' 2", 235 lb·Bay Shore, NY, USA
2026 Pitching
ERA
3.83
WHIP
1.24
IP
51.2
K%
24.0
BB%
7.4
K/9
9.06
W-L
3-2
GS
0
SV
1
HLD
6
DiamondIQ WAR
51.7 IP · 2026
0.4
3.8 runs above replacement
FIP · 4.12 (park 1.01)0.0
vs replacement · RP, 51.7 IP+3.8
FIP-based runs above replacement, park-adjusted, scaled by innings over runs-per-win. Reliever leverage is simplified (v1). Full methodology.
Pitch Arsenal · Statcast
Sinker36% · 93.9 · 14% whiff
Four-Seam28% · 94.0 · 24% whiff
Sweeper13% · 81.8 · 40% whiff
Changeup12% · 85.2 · 47% whiff
Slider9% · 85.4 · 7% whiff
Curveball2% · 81.6 · 0% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | Boston Red Sox | 3 | 2 | 3.83 | 55 | 0 | 1 | 51.2 | 52 | 16 | 1.24 | 9.06 |
| 2025 | Boston Red Sox | 6 | 6 | 2.82 | 72 | 0 | 4 | 67.0 | 57 | 21 | 1.16 | 7.66 |
| 2024 | Boston Red Sox | 4 | 2 | 3.13 | 62 | 0 | 1 | 63.1 | 58 | 20 | 1.34 | 8.24 |
| 2023 | New York Yankees | 0 | 0 | 4.05 | 17 | 0 | 0 | 20.0 | 22 | 8 | 1.45 | 9.90 |
| 2022 | New York Yankees | 3 | 0 | 5.56 | 12 | 0 | 0 | 11.1 | 11 | 5 | 0.97 | 8.74 |
Recent Games
Aug 30 @ New York YankeesL
0.2 IP, 0 ER, 1 K, 0 BB
Aug 28 @ New York YankeesL
0.2 IP, 0 ER, 1 K, 0 BB
Aug 25 @ Miami MarlinsW
1.0 IP, 0 ER, 1 K, 0 BB
Aug 22 vs San Francisco GiantsW
1.0 IP, 0 ER, 2 K, 0 BB
Aug 19 vs Arizona DiamondbacksL
1.0 IP, 2 ER, 1 K, 1 BB
Aug 17 vs Arizona DiamondbacksW
1.0 IP, 0 ER, 1 K, 0 BB
Aug 13 @ Toronto Blue JaysW
1.0 IP, 0 ER, 1 K, 1 BB
Aug 6 vs Chicago White SoxW
1.0 IP, 1 ER, 3 K, 1 BB
Aug 4 vs Chicago White SoxW
0.2 IP, 0 ER, 0 K, 1 BB
Aug 2 @ Los Angeles DodgersW
0.1 IP, 0 ER, 0 K, 0 BB