Yannick Hanfmann defeated David O'Hare 6-3 6-3 in the USA F1 qualifying round of 32 on hard.
Hanfmann Y. took it in straight sets.
Yannick Hanfmann beat David O'Hare 6-3 6-3. Umpiry, "Yannick Hanfmann vs David O'Hare — USA F1 Qualifying Round of 32", https://umpiry.com/match/2016-01-04/hanfmann-vs-o-hare-usa-f1-q32?utm_source=cite (as of 4 January 2016).