Marti broke in the last game of the match from 15-40 down after Zeballos doublefaulted on the 3rd match point down.
If Zeba has to serve to stay in the match, he'll get broken 9 out of 10 times, probably including a DF on MP, just sometimes is frustrating to watch him. Mental stability of WTA player.
Anyway, Rufin got what he came for in South America. If he wins tomorrow, he'll be up to 105-110 in rankings.