Lois Boisson defeated Harriet Dart 6–0, 6–3 in the first round of the WTA 250 event in Rouen on clay on 15 April 2025, confirming her status as pre-match favourite with odds of 1.29 to Dart's 3.83. The French player's dominant performance in the opening set, surrendering no games, established immediate control and proved decisive in determining the match's trajectory. Boisson's comprehensive victory underscores her comfort on home soil and suggests strong momentum heading into the tournament's later stages.