Representing Argentina, Gretz is active in the Age of Empires II scene. 6 matches of Age of Empires II are on Gretz's record. Gretz has yet to try ranked play in Age of Empires II.

Gretz favors Ethiopians over other civilizations, selecting it in 50.0% of matches. With 3 matches as pocket, Gretz holds a 33.3% win rate.