Berlocq leads their previous meetings 5-4. Their last match was in July 2016 in the Bastad Challenger. Berlocq won in 3 sets on clay. He won their last 2 matches. All their meetings were on clay.
Zeballos had a decent finish to last season, especially on clay. This year so far he has won just 1 match. That was his first match of the season in Doha.
Berlocq reached the semi finals last week in Buenos Aires taking Nishikori to 3 sets. At the moment his game is in better shape than his opponents.
I have to favour Berlocq on clay but wait for 1.80 before backing