Guillermo Duran defeated Andres Molteni 6-2 6-2 in the Argentina F28 qualifying round on clay. The upset overturned the form book — Andres Molteni came in leading the head-to-head 5–1. Guillermo Duran narrowed the head-to-head to 5–2.
Duran G. took it in straight sets.
Guillermo Duran beat Andres Molteni 6-2 6-2. Umpiry, "Guillermo Duran vs Andres Molteni — Argentina F28 Qualifying Round", https://umpiry.com/match/2012-12-03/duran-vs-molteni-argentina-f28-qf?utm_source=cite (as of 3 December 2012).