Through her lengthy and arduous journey, Jannsen posted a career-best 26 games pitched, only six behind Belles teammate Migdalia Pérez, while also setting career-highs in ERA (2.67), innings pitched (145) and strikeouts (43).
From 1948 to 1949 seven Cubanas played in the AAGPBL: Isora del Castillo, Luisa Gallegos, Mirtha Marrero, Migdalia Pérez, Gloria Ruiz, Zonia Vialat and Álvarez.
She went 4-for-4 with four RBI against the Fort Wayne Daisies in the third and decisive game of the first round, to back up a six-hit, 6–0 shutout by Migdalia Pérez and secure a spot in the best-of-five final series.
Besides Gallegos, other Cubanas who played in the AAGPBL were Isabel Alvarez, Isora del Castillo, Mirtha Marrero, Migdalia Pérez, Gloria Ruiz and Zonia Vialat.
Besides her, other Cubanas who played in the league were Luisa Gallegos, Migdalia Pérez, Gloria Ruiz and Zonia Vialat.
Migdalia Pérez | Perez Hilton | Miguel Pérez, Jr. | Fernando Perez | Rosie Perez | Portia Perez | Adolfo Pérez Esquivel | Pérez Prado | Juan Pablo Pérez Alfonso | George Pérez | Fernando Perez (baseball) | Arturo Pérez-Reverte | Sergio Pérez | Miguel Perez | Manrique Pérez de Lara | Javier Pérez de Cuéllar | Danny Perez Ramírez | Alfredo Pérez Rubalcaba | Alberto Pérez-Gómez | Pérez | Nuño Pérez de Lara | John Pérez | Francisco Pérez-Bannen | Ernesto Pérez Balladares | Carlota Perez | Ailyn Pérez | Yewddys Pérez | Tony Pérez | Sylvia Perez | Peter Perez Burdett |