Rafael Matos defeated Igor Ribeiro Marcondes 6-4 6-4 in the Brazil F2 semi-final on clay. The upset overturned the form book — Igor Ribeiro Marcondes came in leading the head-to-head 2–1. That levelled the head-to-head at 2–2.
Matos R. took it in straight sets.
Rafael Matos beat Igor Ribeiro Marcondes 6-4 6-4. Umpiry, "Rafael Matos vs Igor Ribeiro Marcondes — Brazil F2 Semi-final", https://umpiry.com/match/2018-04-30/marcondes-vs-matos-brazil-f2-sf?utm_source=cite (as of 30 April 2018).