Sean Guenther
Sean McManus Guenther
Born: December 29, 1995
Atlanta, GA US
Primary Position: Pitcher
Bats: Left
Throws: Left
Height: 5'11"
Weight: 194
Draft: Round 7 (2017 June Amateur Draft, Miami Marlins)
School: Notre Dame
Career: 2017-2025
Major League Statistics
Sean Guenther compiled a career record of 20 wins and 17 losses and a 3.34 ERA in his 173-game pitching career with the Marlins, Batavia Muckdogs, Greensboro Grasshoppers, Jupiter Hammerheads, Clinton LumberKings, Jacksonville Jumbo Shrimp, Pensacola Blue Wahoos, Lakeland Flying Tigers, Toledo Mud Hens and Erie SeaWolves. He began playing during the 2017 season and last took the field during the 2025 campaign.
 Batavia Muckdogs |
 Marlins |
 Greensboro Grasshoppers |
 Jupiter Hammerheads |
 Clinton LumberKings |
 Pensacola Blue Wahoos |
 Jacksonville Jumbo Shrimp |
 Erie SeaWolves |
 Lakeland Flying Tigers |
 Toledo Mud Hens |
Click on column headings to sort.
Pitching:
| Year | Level | Lg | Team | W | L | W% | ERA | G | GS | GF | CG | SHO | SV | IP | H | R | ER | HR | BB | IBB | SO | HBP | BK | WP | BF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017 | Short Season A | NYPL | Batavia Muckdogs | 1 | 4 | .200 | 3.82 | 9 | 9 | 0 | 0 | 0 | 0 | 40.0 | 43 | 18 | 17 | 3 | 4 | 0 | 33 | 3 | 0 | 2 | 167 |
| 2017 | R | GULF | Marlins | 0 | 0 | 0.82 | 4 | 3 | 0 | 0 | 0 | 0 | 11.0 | 5 | 1 | 1 | 0 | 1 | 0 | 11 | 1 | 0 | 0 | 42 | |
| 2018 | R | GULF | Marlins | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 2.0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 7 | |
| 2018 | Advanced A | FLOR | Jupiter Hammerheads | 0 | 1 | .000 | 4.83 | 7 | 7 | 0 | 0 | 0 | 0 | 31.7 | 48 | 22 | 17 | 5 | 3 | 0 | 13 | 2 | 0 | 1 | 143 |
| 2018 | A | SALL3 | Greensboro Grasshoppers | 4 | 3 | .571 | 4.45 | 13 | 8 | 2 | 1 | 1 | 0 | 54.7 | 65 | 37 | 27 | 3 | 5 | 0 | 40 | 2 | 0 | 0 | 234 |
| 2019 | A | MIDW | Clinton LumberKings | 2 | 2 | .500 | 1.24 | 12 | 1 | 3 | 0 | 0 | 0 | 29.0 | 25 | 6 | 4 | 1 | 10 | 0 | 28 | 0 | 0 | 2 | 124 |
| 2019 | Advanced A | FLOR | Jupiter Hammerheads | 3 | 1 | .750 | 2.55 | 23 | 2 | 7 | 0 | 0 | 1 | 42.3 | 31 | 14 | 12 | 4 | 6 | 0 | 44 | 2 | 0 | 2 | 168 |
| 2021 | AAA | AAAE | Jacksonville Jumbo Shrimp | 3 | 1 | .750 | 4.76 | 15 | 1 | 3 | 0 | 0 | 1 | 22.7 | 21 | 15 | 12 | 2 | 4 | 0 | 28 | 2 | 0 | 0 | 93 |
| 2021 | AA | AASO | Pensacola Blue Wahoos | 1 | 0 | 1.000 | 1.02 | 11 | 0 | 1 | 0 | 0 | 0 | 17.7 | 11 | 3 | 2 | 1 | 3 | 0 | 26 | 1 | 0 | 1 | 66 |
| 2023 | AAA | IL | Toledo Mud Hens | 2 | 1 | .667 | 4.88 | 25 | 3 | 5 | 0 | 0 | 0 | 31.3 | 31 | 19 | 17 | 8 | 9 | 0 | 37 | 3 | 0 | 2 | 136 |
| 2023 | A | FLOR | Lakeland Flying Tigers | 0 | 0 | 1.12 | 6 | 3 | 0 | 0 | 0 | 0 | 8.0 | 4 | 1 | 1 | 0 | 1 | 0 | 11 | 0 | 0 | 0 | 27 | |
| 2023 | AA | EL | Erie SeaWolves | 0 | 0 | 1.59 | 8 | 0 | 0 | 0 | 0 | 0 | 11.3 | 9 | 2 | 2 | 1 | 2 | 0 | 14 | 0 | 0 | 0 | 45 | |
| 2024 | AAA | IL | Toledo Mud Hens | 4 | 4 | .500 | 3.31 | 39 | 2 | 11 | 0 | 0 | 3 | 51.7 | 51 | 28 | 19 | 4 | 15 | 0 | 52 | 1 | 0 | 1 | 222 |
| 2025 | A | FLOR | Lakeland Flying Tigers | 0 | 0 | 9.00 | 1 | 0 | 0 | 0 | 0 | 0 | 1.0 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | |
| 2025 | AAA | IL | Toledo Mud Hens | 0 | 1 | .000 | 6.00 | 2 | 0 | 0 | 0 | 0 | 0 | 3.0 | 3 | 2 | 2 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 11 |
| Totals | 20 | 17 | .541 | 3.34 | 173 | 39 | 32 | 1 | 1 | 5 | 353.3 | 344 | 166 | 131 | 32 | 63 | 0 | 339 | 17 | 0 | 11 | 1474 |
Fielding:
| Year | Level | Lg | Team | Pos | GP | PO | A | E | DP | Fld% | RF/G |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017 | Short Season A | NYPL | Batavia Muckdogs | P | 9 | 3 | 2 | 0 | 0 | 1.000 | .556 |
| 2017 | R | GULF | Marlins | P | 4 | 1 | 2 | 0 | 0 | 1.000 | .750 |
| 2018 | Advanced A | FLOR | Jupiter Hammerheads | P | 7 | 0 | 6 | 1 | 1 | .857 | .857 |
| 2018 | A | SALL3 | Greensboro Grasshoppers | P | 13 | 2 | 7 | 0 | 0 | 1.000 | .692 |
| 2018 | R | GULF | Marlins | P | 1 | 0 | 0 | 0 | 0 | .000 | |
| 2019 | Advanced A | FLOR | Jupiter Hammerheads | P | 23 | 2 | 1 | 0 | 0 | 1.000 | .130 |
| 2019 | A | MIDW | Clinton LumberKings | P | 12 | 1 | 3 | 0 | 0 | 1.000 | .333 |
| 2021 | AAA | AAAE | Jacksonville Jumbo Shrimp | P | 15 | 0 | 4 | 0 | 0 | 1.000 | .267 |
| 2021 | AA | AASO | Pensacola Blue Wahoos | P | 11 | 2 | 2 | 0 | 0 | 1.000 | .364 |
| 2023 | AA | EL | Erie SeaWolves | P | 8 | 0 | 1 | 0 | 0 | 1.000 | .125 |
| 2023 | A | FLOR | Lakeland Flying Tigers | P | 6 | 1 | 3 | 0 | 0 | 1.000 | .667 |
| 2023 | AAA | IL | Toledo Mud Hens | P | 25 | 4 | 0 | 1 | 0 | .800 | .160 |
| 2024 | AAA | IL | Toledo Mud Hens | P | 39 | 3 | 12 | 1 | 0 | .938 | .385 |
| 2025 | AAA | IL | Toledo Mud Hens | P | 2 | 0 | 0 | 0 | 0 | .000 | |
| 2025 | A | FLOR | Lakeland Flying Tigers | P | 1 | 1 | 0 | 0 | 0 | 1.000 | 1.000 |
| Totals | 173 | 19 | 43 | 3 | 1 | .954 | .358 |
Minor League Service:
| Year | Level | League | Team | Affiliation | First Appearance | Final Appearance |
|---|---|---|---|---|---|---|
| 2017 | R | Gulf Coast League | Marlins | MIA | July 2, 2017 | July 16, 2017 |
| 2017 | Short Season A | New York-Pennsylvania League | Batavia Muckdogs | MIA | July 21, 2017 | September 5, 2017 |
| 2018 | Advanced A | Florida State League | Jupiter Hammerheads | MIA | April 8, 2018 | May 12, 2018 |
| 2018 | R | Gulf Coast League | Marlins | MIA | June 23, 2018 | June 23, 2018 |
| 2018 | A | South Atlantic League | Greensboro Grasshoppers | MIA | June 27, 2018 | September 1, 2018 |
| 2019 | A | Midwest League | Clinton LumberKings | MIA | April 5, 2019 | May 22, 2019 |
| 2019 | Advanced A | Florida State League | Jupiter Hammerheads | MIA | May 26, 2019 | August 25, 2019 |
| 2021 | AA | AA South | Pensacola Blue Wahoos | MIA | May 5, 2021 | June 5, 2021 |
| 2021 | AAA | AAA East | Jacksonville Jumbo Shrimp | MIA | June 9, 2021 | July 29, 2021 |
| 2023 | A | Florida State League | Lakeland Flying Tigers | DET | May 9, 2023 | May 28, 2023 |
| 2023 | AA | Eastern League | Erie SeaWolves | DET | June 1, 2023 | June 23, 2023 |
| 2023 | AAA | International League | Toledo Mud Hens | DET | June 28, 2023 | September 24, 2023 |
| 2024 | AAA | International League | Toledo Mud Hens | DET | March 29, 2024 | August 20, 2024 |
| 2025 | A | Florida State League | Lakeland Flying Tigers | |||
| 2025 | AAA | International League | Toledo Mud Hens |
Persons data from the Chadwick Baseball Bureau are Copyright Chadwick Baseball Bureau, and are made available under the Open Data Commons Attribution License.
