Illya Marchenko defeated John Millman 6-2 6-1 in the Australian Open qualifying round of 32 on hard. The upset overturned the form book — John Millman came in leading the head-to-head 1–0. Illya Marchenko claimed a first win over John Millman in two meetings, levelling the head-to-head at 1–1.
Marchenko I. took it in straight sets.
Illya Marchenko beat John Millman 6-2 6-1. Umpiry, "Illya Marchenko vs John Millman — Australian Open Qualifying Round of 32", https://umpiry.com/match/2010-01-16/marchenko-vs-millman-australian-open-q32?utm_source=cite (as of 16 January 2010).