Agustin Calleri defeated Mark Merklein 6-4 6-4 in the Santiago qualifying round of 16 on clay.
Calleri A. took it in straight sets.
Agustin Calleri beat Mark Merklein 6-4 6-4. Umpiry, "Agustin Calleri vs Mark Merklein — Santiago Qualifying Round of 16", https://umpiry.com/match/2000-02-28/calleri-vs-merklein-santiago-q16?utm_source=cite (as of 28 February 2000).