Ivan Endara defeated Sebastian Serrano 6-2 6-0 in the Panama F1 round of 32 on clay. The upset overturned the form book — Sebastian Serrano came in leading the head-to-head 1–0. Ivan Endara claimed a first win over Sebastian Serrano in two meetings, levelling the head-to-head at 1–1.
Endara I. took it in straight sets.
Clay: Endara I. leads 1–0 · Hard: Serrano S. leads 1–0
Ivan Endara beat Sebastian Serrano 6-2 6-0. Umpiry, "Ivan Endara vs Sebastian Serrano — Panama F1 Round of 32", https://umpiry.com/match/2010-02-01/endara-vs-serrano-panama-f1-r32?utm_source=cite (as of 1 February 2010).