Nicolas Barrientos defeated Mauricio Echazu 6-1 6-4 in the Colombia F1 semi-final on clay. The upset overturned the form book — Mauricio Echazu came in leading the head-to-head 4–1. Nicolas Barrientos narrowed the head-to-head to 4–2.
Barrientos N. took it in straight sets.
Clay: Echazu M. leads 3–1 · Hard: level 1–1
Nicolas Barrientos beat Mauricio Echazu 6-1 6-4. Umpiry, "Nicolas Barrientos vs Mauricio Echazu — Colombia F1 Semi-final", https://umpiry.com/match/2012-08-13/barrientos-vs-echazu-colombia-f1-sf?utm_source=cite (as of 13 August 2012).