Sean Guenther
Pitcher · Career Stats, Bio & Records (2021-2025)
Sean Guenther is a pitcher who has played in Major League Baseball since 2021 for the Miami Marlins and the Detroit Tigers, a span of 5 seasons. Across 40 career appearances, he has gone 3-2 with a 5.05 ERA and 35 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 1154.2.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
- Position
- Pitcher
- Bats / Throws
- L / L
- Height / Weight
- 5'11" / 194 lb
- MLB Debut
- 2021-08-04
Full name: Sean McManus Guenther
Season-by-Season Pitching
Click a stat to plot it across every season.
| Year | Team | Lg | W | L | G | GS | CG | SHO | SV | IP | H | ER | BB | SO | ERA | Lg ERA | Pitcher PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | MIA | NL | 0 | 1 | 14 | 0 | 0 | 0 | 0 | 20.3 | 31 | 21 | 10 | 15 | 9.30 | 4.27 (-118%) | 82.2 |
| 2024 | DET | AL | 3 | 0 | 17 | 0 | 0 | 0 | 0 | 21.0 | 9 | 2 | 2 | 12 | 0.86 | 4.08 (+79%) | 782.0 |
| 2025 | DET | AL | 0 | 1 | 9 | 1 | 0 | 0 | 0 | 10.3 | 10 | 6 | 5 | 8 | 5.23 | 4.16 (-26%) | 290.0 |
| Career · 3 seasons | 3 | 2 | 40 | 1 | 0 | 0 | 0 | 51.2 | 50 | 29 | 17 | 35 | 5.05 | — | 1,154 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Season-by-Season Batting
Click a stat to plot it across every season.
| Year | Team | Lg | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | Lg AVG | Lg OBP | Lg SLG | Lg OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | MIA | NL | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2024 | DET | AL | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2025 | DET | AL | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 3 seasons | 40 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | 0 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Game Log & Splits
View full game log (80 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 20 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 20 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 20 | 27.0 | 22 | 10 | 8 | 22 | 3.33 |
| Away | 20 | 24.2 | 28 | 19 | 9 | 13 | 6.93 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-05-22 | DET | CLE | — | 1.1 | 1 | 3 | 2 | 2 | 1 | 0 |
| 2025-05-21 | DET | STL | — | 0.2 | 1 | 1 | 1 | 0 | 1 | 0 |
| 2025-05-19 | DET | STL | L | 0.1 | 3 | 1 | 1 | 0 | 0 | 0 |
| 2025-05-12 | DET | BOS | — | 2.0 | 1 | 0 | 0 | 0 | 1 | 0 |
| 2025-05-10 | DET | TEX | — | 1.1 | 1 | 2 | 2 | 2 | 0 | 0 |
| 2025-05-08 | DET | COL | — | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 |
| 2025-05-03 | DET | LAA | — | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 2025-04-27 | DET | BAL | — | 2.0 | 1 | 0 | 0 | 0 | 3 | 0 |
| 2025-04-26 | DET | BAL | — | 0.2 | 1 | 0 | 0 | 0 | 1 | 0 |
| 2024-09-28 | DET | CHW | — | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 |
Fielding Statistics
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 40 |
Frequently Asked Questions about Sean Guenther
- What years did Sean Guenther play?
- Sean Guenther played in Major League Baseball from 2021 to 2025.
- Was Sean Guenther a pitcher?
- Yes. Sean Guenther pitched in the major leagues, recording 3 wins and 35 strikeouts.
- What was Sean Guenther's career ERA?
- Sean Guenther finished with a 5.05 career ERA, going 3-2 with 35 strikeouts.
- How many strikeouts did Sean Guenther have?
- Sean Guenther recorded 35 career strikeouts.
- Is Sean Guenther in the Hall of Fame?
- No. Sean Guenther has not been inducted into the National Baseball Hall of Fame.
- What teams did Sean Guenther play for?
- Sean Guenther played for the Miami Marlins and the Detroit Tigers.