| Year | Title | Publisher | Prize Amount | Judge |
| 2020 | Deuda Natal/Natal Debt | University of Arizona Press | $1,000 | Pablo F. Medina |
Mara Pastor is the author of Deuda Natal/Natal Debt, co-translated by María José Giménez and Anna Rosenwong, which was selected for the 2020 Ambroggio Prize and is forthcoming from University of Arizona Press in 2021.