The 2025 season ended long ago for most members of the Miami Marlins organization, but for some, that was merely the end of their affiliated ball campaign. They have since returned to action in the Arizona Fall League and international winter leagues to further their development and/or compensate for time they missed over the summer.
This page will be updated to include any Marlins offseason acquisitions who are fall/winter ball participants. Likewise, players who switch to other MLB organizations via free agency or trade will be removed.
Player names are linked to their Baseball-Reference pages. Click to see their fall/winter ball stats.
Arizona Fall League
INF Starlyn Caba (Mesa Solar Sox)
Finished 2025 minor league season at Low-A
AFL season debut: October 7
RHP Holt Jones (Mesa Solar Sox)
Finished 2025 minor league season at High-A
AFL season debut: October 7
RHP Aiden May (Mesa Solar Sox)
Finished 2025 minor league season at High-A
AFL season debut: October 10
RHP Karson Milbrandt (Mesa Solar Sox)
Finished 2025 minor league season at Double-A
AFL season debut: October 8
OF PJ Morlando (Mesa Solar Sox)
Finished 2025 minor league season at Low-A
AFL season debut: October 7
RHP Darwin Rodríguez (Mesa Solar Sox)
Finished 2025 minor league season at Low-A
AFL season debut: October 9
LHP Jack Sellinger (Mesa Solar Sox)
Finished 2025 minor league season at Double-A
AFL season debut: October 7
OF Fenwick Trimble (Mesa Solar Sox)
Finished 2025 minor league season at Double-A
AFL season debut: October 7
Dominican Winter League (LIDOM)
OF Griffin Conine (Tigres del Licey)
LIDOM season debut: October 15
Venezuelan Winter League (LVBP)
INF Maximo Acosta (Tiburones de La Guaira)
Finished 2025 minor league season at Triple-A
Expected to make LVBP season debut in November
Puerto Rican Winter League (LBPRC)
INF Jacob Berry (Leones de Ponce)
Finished 2025 minor league season at Triple-A
Expected to make LBPRC season debut around December 1