Hermes Gamonal defeated Juan Robinson Gamonal 6-0 3-6 7-6 in the Chile 2 Masters 1 round of 32 on clay. The upset overturned the form book — Juan Robinson Gamonal came in leading the head-to-head 1–0. Hermes Gamonal claimed a first win over Juan Robinson Gamonal in two meetings, levelling the head-to-head at 1–1.
Gamonal H. came through in three sets.
Hermes Gamonal beat Juan Robinson Gamonal 6-0 3-6 7-6. Umpiry, "Hermes Gamonal vs Juan Robinson Gamonal — Chile 2 Masters 1 Round of 32", https://umpiry.com/match/1997-11-08/gamonal-vs-gamonal-chile-2-masters-1-r32?utm_source=cite (as of 8 November 1997).