[1] Mac Donough was born in Pehuajo and began playing polo with his family at a young age.
Mac Donough has also played in Spain, winning the Sottogrande Gold (2) and Silver Cups.
[2] In Argentina, Mac Donough played with Ellerstina from 2003 to 2010, first alongside Matias Mac Donough and his cousins Gonzalo and Facundo Pieres, and later with Juan Martín Nero in place of his brother.
For the 2011 season, Mac Donough and Nero joined La Dolfina to play with Adolfo Cambiaso and David Stirling.
In 2010, Mac Donough played in the United Kingdom with the Dubai Polo Team[3] and won the Queen's Cup[4] and the British Open.