Leylah Fernandez defeated Polona Hercog 6–4, 3–6, 6–1 in the first round of Roland Garros 2020 on clay, upsetting the pre-match favourite Hercog. The Canadian teenager, competing at long odds of 2.47, recovered from dropping the second set to dominate the decider, claiming the opening two frames through a combination of aggressive play and composure. Hercog, seeded as the favourite at 1.6, struggled to maintain consistency across the match, particularly in the third set where Fernandez's momentum proved decisive. The victory marked an important scalp for the young Canadian at a Grand Slam and demonstrated her capacity to compete against established opponents on the tour's slowest surface.