Nicolas Barrientos defeated Gustavo Sterin 6-4 6-4 in the Peru F3 round of 32 on clay. The upset overturned the form book — Gustavo Sterin came in leading the head-to-head 1–0. Nicolas Barrientos claimed a first win over Gustavo Sterin in two meetings, levelling the head-to-head at 1–1.
Barrientos N. took it in straight sets.
Clay: Barrientos N. leads 1–0 · Hard: Sterin G. leads 1–0
Nicolas Barrientos beat Gustavo Sterin 6-4 6-4. Umpiry, "Nicolas Barrientos vs Gustavo Sterin — Peru F3 Round of 32", https://umpiry.com/match/2012-06-04/barrientos-vs-sterin-peru-f3-r32?utm_source=cite (as of 4 June 2012).