Nicolas Massu defeated Mauricio Hadad 4-6 7-5 7-6 6-1 in the COL vs CHI round robin on clay.
Massu N. came through in four sets.
Nicolas Massu beat Mauricio Hadad 4-6 7-5 7-6 6-1. Umpiry, "Nicolas Massu vs Mauricio Hadad — COL vs CHI Round Robin", https://umpiry.com/match/1999-04-02/hadad-vs-massu-col-vs-chi-rr?utm_source=cite (as of 2 April 1999).