Chuck Swayne defeated Marco Osorio 6-3 6-2 in the Central America Masters 3 round of 32 on hard.
Swayne C. took it in straight sets.
Chuck Swayne beat Marco Osorio 6-3 6-2. Umpiry, "Chuck Swayne vs Marco Osorio — Central America Masters 3 Round of 32", https://umpiry.com/match/1991-02-16/osorio-vs-swayne-central-america-masters-3-r32?utm_source=cite (as of 16 February 1991).