Joao Zwetsch defeated Ramon Delgado 3-6 6-3 6-3 in the Central America Masters 4 round of 16 on hard. The upset overturned the form book — Ramon Delgado came in leading the head-to-head 1–0. Joao Zwetsch claimed a first win over Ramon Delgado in two meetings, levelling the head-to-head at 1–1.
Zwetsch J. came through in three sets.
Hard: Zwetsch J. leads 1–0 · Clay: Delgado R. leads 1–0
Joao Zwetsch beat Ramon Delgado 3-6 6-3 6-3. Umpiry, "Joao Zwetsch vs Ramon Delgado — Central America Masters 4 Round of 16", https://umpiry.com/match/1996-01-13/delgado-vs-zwetsch-central-america-masters-4-r16?utm_source=cite (as of 13 January 1996).