Mackenzie Mcdonald defeated Yannick Hanfmann 7-6 6-2 in the USA F2 round of 32 on hard. The upset overturned the form book — Yannick Hanfmann came in ranked #57.
McDonald M. took it in straight sets.
Mackenzie Mcdonald beat Yannick Hanfmann 7-6(4) 6-2. Umpiry, "Mackenzie Mcdonald vs Yannick Hanfmann — USA F2 Round of 32", https://umpiry.com/match/2015-01-05/hanfmann-vs-mcdonald-usa-f2-r32?utm_source=cite (as of 5 January 2015).