Thiago Agustin Tirante defeated Botic van de Zandschulp 6–2, 4–6, 6–3, 6–4 in the first round of Roland Garros on clay on 29 May 2023, delivering an upset against the pre-match favourite. Van de Zandschulp, who carried odds of 1.23, was expected to progress comfortably, but Tirante's composed clay-court performance—particularly his control in the opening and closing sets—proved decisive. After losing the second set, Tirante regrouped to take the third and fourth frames with increasing authority, converting the match points when it mattered. The result marks a significant scalp for Tirante at the Grand Slam level and raises questions about van de Zandschulp's form on the slower surface heading into the tournament's later rounds.