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Sean Guenther
Sean Guenther
Toledo Mud Hens • Pitcher
Age 30 • 5' 11" • 194 lb
Bats: L • Throws: L
MLB Debut: 2021-08-04
Born: Atlanta , GA • USA
Draft: 2017
2025 Stats
W
0
L
1
ERA
5.23
WHIP
1.45
IP
10.1
SO
8
SV
0
HLD
2
G
9
GS
1
Career Stats
W
3
L
2
ERA
5.05
WHIP
1.30
IP
51.2
SO
35
SV
0
HLD
4
G
40
GS
1
Year-by-Year Pitching
Year Team GGSIP WLSVSO ERAWHIPAwards
2021 MIA 14 — 20.1 — 1 — 15 9.30 2.02
2024 DET 17 — 21.0 3 — — 12 0.86 0.52
2025 DET 9 1 10.1 — 1 — 8 5.23 1.45
Spring Training
Pitching
YearTeamGGSIPWLSVSOERAWHIP
2022 MIA 2—2.0 ———1 0.001.00
2024 DET 6—5.2 ——18 4.761.94
2025 DET 6—4.1 ———4 14.542.77
2026 DET 7—7.2 ———5 0.000.91
Postseason
Pitching
YearTeamGGSIPWLSVSOERAWHIP
2024 DET 4—3.0 1——— 3.001.00
Game Logs
Season selector loads one year at a time.
Pitching
Date Opponent IP H R ER BB SO HR
2025-05-22 vs CLE 1.1 1 3 2 2 1 0
2025-05-21 @ STL 0.2 1 1 1 0 1 0
2025-05-19 @ STL 0.1 3 1 1 0 0 0
2025-05-12 vs BOS 2.0 1 0 0 0 1 0
2025-05-10 vs TEX 1.1 1 2 2 2 0 0
2025-05-08 @ COL 1.0 0 0 0 1 1 0
2025-05-03 @ LAA 1.0 1 0 0 0 0 0
2025-04-27 vs BAL 2.0 1 0 0 0 3 0
2025-04-26 vs BAL 0.2 1 0 0 0 1 0
Transactions
Entire history • newest first.
2025-12-16
Detroit Tigers signed free agent LHP Sean Guenther to a minor league contract.
2025-12-16
LHP Sean Guenther roster status changed by Detroit Tigers.
2025-11-21
LHP Sean Guenther elected free agency.
2025-11-18
Detroit Tigers designated LHP Sean Guenther for assignment.
2025-11-06
Detroit Tigers activated LHP Sean Guenther from the 60-day injured list.
2025-07-06
Detroit Tigers recalled LHP Sean Guenther from Toledo Mud Hens.
2025-05-23
Detroit Tigers optioned LHP Sean Guenther to Toledo Mud Hens.
2025-04-26
Detroit Tigers recalled LHP Sean Guenther from Toledo Mud Hens.
2025-03-17
Detroit Tigers optioned LHP Sean Guenther to Toledo Mud Hens.
2024-08-22
Detroit Tigers recalled LHP Sean Guenther from Toledo Mud Hens.
2024-08-04
Detroit Tigers optioned LHP Sean Guenther to Toledo Mud Hens.
2024-08-01
Detroit Tigers selected the contract of LHP Sean Guenther from Toledo Mud Hens.
2024-02-07
Detroit Tigers invited non-roster LHP Sean Guenther to spring training.
2022-11-15
Detroit Tigers sent LHP Sean Guenther outright to Toledo Mud Hens.
2022-11-10
Detroit Tigers activated LHP Sean Guenther.
2022-11-02
Detroit Tigers claimed LHP Sean Guenther off waivers from Miami Marlins.
2022-04-04
Miami Marlins placed LHP Sean Guenther on the 60-day injured list. Left arm strain.
2022-04-04
Miami Marlins activated LHP Sean Guenther.
2021-10-05
Miami Marlins activated LHP Sean Guenther from the 10-day injured list.
2021-10-03
Miami Marlins placed LHP Sean Guenther on the 10-day injured list.
2021-08-14
Miami Marlins recalled LHP Sean Guenther from Jacksonville Jumbo Shrimp.
2021-08-09
Miami Marlins optioned LHP Sean Guenther to Jacksonville Jumbo Shrimp.
2021-08-01
Miami Marlins selected the contract of LHP Sean Guenther from Jacksonville Jumbo Shrimp.
2017-06-23
Miami Marlins signed LHP Sean Guenther.
Scouting Report
Statcast-style percentiles • Basenerd theme
Season 2025
Ready
Basic Line
Season / Game
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Pitch Arsenal
Usage • Velo • Break • Spin • xwOBA
Pitch N Use% Velo HB IVB Spin xwOBA Whiff% Zone% Chase% BNStuff+ BNCtrl+
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Notes
Primary pitch summary
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Movement Profile (Induced Break)
Pitcher's View: HB vs Rise / Drop (in)
Circles: 12/18/24 in • Dots = pitch types (size ~ pitch count)
Pitch Location Heatmaps
KDE-style blur • fixed zone • catcher POV
vs. LHH
vs. RHH
Zone: left -0.7083 / right 0.7083 • bot 1.595 / top 3.394 • Domain: X [-2,2], Z [0,5]
Statcast Game Log
Per-game pitch metrics from Statcast
Date Pitches Velo BNStuff+ BNCtrl+ Whiff% Zone% Chase% K% BB% xwOBA
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