Diego Junqueira defeated Rafael Serpa Guinazu 6-4 5-7 6-4 in the Peru F2 round of 16 on clay. The upset overturned the form book — Rafael Serpa Guinazu came in leading the head-to-head 1–0. Diego Junqueira claimed a first win over Rafael Serpa Guinazu in two meetings, levelling the head-to-head at 1–1.
Junqueira D. came through in three sets.
Diego Junqueira beat Rafael Serpa Guinazu 6-4 5-7 6-4. Umpiry, "Diego Junqueira vs Rafael Serpa Guinazu — Peru F2 Round of 16", https://umpiry.com/match/2000-09-04/guinazu-vs-junqueira-peru-f2-r16?utm_source=cite (as of 4 September 2000).