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Foster Griffin
MLB
About Foster Griffin
Fred Foster Griffin (born July 27, 1995) is an American professional baseball pitcher for the Cleveland Guardians of Major League Baseball (MLB). He has previously played in MLB with the Kansas City Royals, Toronto Blue Jays, and Washington Nationals, and in Nippon Professional Baseball (NPB) for the Yomiuri Giants. The Royals selected Griffin in the first round of the 2014 MLB draft, and he made his MLB debut with the team in 2020. After his debut, he had Tommy John surgery. After a brief return to the majors in 2022, he signed with Yomiuri. He was an NPB All-Star in 2025. Griffin was named to his first MLB All-Star game in 2026.
Bio summary from Wikipedia.
Player Stats
| W | 15 | L | 6 | ERA | 3.60 | G | 31 |
|---|---|---|---|---|---|---|---|
| GS | 31 | SV | 0 | IP | 172.2 | H | 164 |
| R | 76 | ER | 69 | BB | 45 | SO | 158 |
| WHIP | 1.210 | H/9 | 8.5 | HR/9 | 1.2 | BB/9 | 2.3 |
| K/9 | 8.2 | FIP | 3.96 | WAR | 3.3 |
2026 pitching — Baseball-Reference
Career — Lahman, through 2025
Pitching
| Year | Team | W | L | ERA | G | GS | CG | SHO | SV | IP | H | HR | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | KCA | 1 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 1.2 | 0 | 0 | 0 | 1 |
| 2022 | KCA | 0 | 0 | 12.46 | 5 | 0 | 0 | 0 | 0 | 4.1 | 6 | 0 | 4 | 2 |
| 2022 | TOR | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 1 | 2 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30 | 12 | 3.60 | 62 | 62 | 0 | 0 | 0 | 345.1 | 328 | 152 | 138 | 46 | 90 | 316 | 1.21 |
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 Foster Griffin Highlights
“Foster Griffin 2026 MLB Highlights! (Mid-Season)” · Open on YouTube · More Foster Griffin videos