Enzo Couacaud defeated Arthur De Greef 6-0 6-3 in the Roland Garros qualifying round of 64 on clay. The upset overturned the form book — Arthur De Greef came in leading the head-to-head 1–0, but Enzo Couacaud had been the form player, winning 4 of their last 6 on clay. Enzo Couacaud claimed a first win over Arthur De Greef in two meetings, levelling the head-to-head at 1–1.
Couacaud E. took it in straight sets.
Enzo Couacaud beat Arthur De Greef 6-0 6-3. Umpiry, "Enzo Couacaud vs Arthur De Greef — Roland Garros Qualifying Round of 64", https://umpiry.com/match/2019-05-22/couacaud-vs-greef-roland-garros-q64?utm_source=cite (as of 22 May 2019).