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Greg Weissert
MLB
About Greg Weissert
Gregory R. Weissert (born February 4, 1995) is an American professional baseball pitcher for the Boston Red Sox of Major League Baseball (MLB). He has previously played in MLB for the New York Yankees. The Yankees selected Weissert in the 18th round of the 2016 MLB draft. He made his MLB debut in 2022.
Bio summary from Wikipedia.
Player Stats
| W | 4 | L | 2 | ERA | 3.26 | G | 63 |
|---|---|---|---|---|---|---|---|
| GS | 0 | SV | 1 | IP | 60.2 | H | 55 |
| R | 23 | ER | 22 | BB | 20 | SO | 60 |
| WHIP | 1.236 | H/9 | 8.2 | HR/9 | 1.2 | BB/9 | 3.0 |
| K/9 | 8.9 | FIP | 3.97 | WAR | 0.7 |
2026 pitching — Baseball-Reference
Career — Lahman, through 2025
Pitching
| Year | Team | W | L | ERA | G | GS | CG | SHO | SV | IP | H | HR | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | NYA | 3 | 0 | 5.56 | 12 | 0 | 0 | 0 | 0 | 11.1 | 6 | 1 | 5 | 11 |
| 2023 | NYA | 0 | 0 | 4.05 | 17 | 0 | 0 | 0 | 0 | 20.0 | 21 | 3 | 8 | 22 |
| 2024 | BOS | 4 | 2 | 3.13 | 62 | 0 | 0 | 0 | 1 | 63.1 | 65 | 7 | 20 | 58 |
| 2025 | BOS | 6 | 6 | 2.82 | 72 | 0 | 0 | 0 | 4 | 67.0 | 57 | 6 | 21 | 57 |
Season lines from the Lahman Baseball Database (Version 2025, via SABR), joined through the Chadwick Register ID crosswalk. The databank runs through the 2025 season — the current season is the 2026 line below, from the MLB Stats API.
2026 Season — MLB Stats API
Pitching
| W | L | ERA | G | GS | CG | SHO | SV | IP | H | R | ER | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2 | 3.26 | 63 | 0 | 0 | 0 | 1 | 60.2 | 55 | 23 | 22 | 8 | 20 | 60 | 1.24 |
2026 regular-season line from the MLB Stats API (statsapi.mlb.com), pulled when this page was built. Multi-team stints are combined; rate stats are recomputed from the combined totals.
Watch Greg Weissert Highlights
“Greg Weissert 2025 MLB Highlights!” · Open on YouTube · More Greg Weissert videos