Daniel Elahi Galan defeated Yoshihito Nishioka 6-4, 6-3, 6-3 in the first round of Wimbledon on grass on 3 July 2023, recording an upset victory over the pre-match favourite. Nishioka entered with odds of 1.72 to Galan's 2.25, suggesting the Japanese player was expected to progress, yet the Colombian controlled the match throughout with consistent play across all three sets. Galan's dominant performance—dropping only seven games across the encounter—demonstrated strong grass-court form and suggests he carries momentum into the second round.