Jacob Grills defeated Christopher Oconnell 6-4 4-6 6-3 in the Australia F1 round of 16 on hard. The upset overturned the form book — Christopher Oconnell came in leading the head-to-head 1–0. Jacob Grills claimed a first win over Christopher Oconnell in two meetings, levelling the head-to-head at 1–1.
Grills J. came through in three sets.
Hard: Grills J. leads 1–0 · Grass: Oconnell C. leads 1–0
Jacob Grills beat Christopher Oconnell 6-4 4-6 6-3. Umpiry, "Jacob Grills vs Christopher Oconnell — Australia F1 Round of 16", https://umpiry.com/match/2015-02-23/grills-vs-oconnell-australia-f1-r16?utm_source=cite (as of 23 February 2015).