Dominik Koepfer defeated Ugo Humbert 6-4 6-4 in the Canada F2 qualifying round on hard. The upset overturned the form book — Ugo Humbert came in leading the head-to-head 1–0, but Dominik Koepfer had been the form player, winning 4 of their last 7 on hard. Dominik Koepfer claimed a first win over Ugo Humbert in two meetings, levelling the head-to-head at 1–1.
Koepfer D. took it in straight sets.
Dominik Koepfer beat Ugo Humbert 6-4 6-4. Umpiry, "Dominik Koepfer vs Ugo Humbert — Canada F2 Qualifying Round", https://umpiry.com/match/2018-03-05/humbert-vs-koepfer-canada-f2-qf?utm_source=cite (as of 5 March 2018).