Roman Borvanov defeated Chris Kwon 7-5 6-4 in the Mexico F7 quarter-final on hard. The result followed the form book — Roman Borvanov came in leading the head-to-head 1–0. Roman Borvanov extended the head-to-head to 2–0.
Borvanov R. took it in straight sets.
Roman Borvanov beat Chris Kwon 7-5 6-4. Umpiry, "Roman Borvanov vs Chris Kwon — Mexico F7 Quarter-final", https://umpiry.com/match/2011-06-13/borvanov-vs-kwon-mexico-f7-qf?utm_source=cite (as of 13 June 2011).