Damir Dzumhur defeated Mikhail Kukushkin 6–4, 7–6 in the second round of the ATP 250 event in Rotterdam on hard court, an upset victory against the pre-match favourite. Kukushkin entered as the betting favourite at 1.77 odds, but Dzumhur, priced at 2.18, delivered a composed performance to secure the win in straight sets, with the second set requiring a tiebreak to settle. The result represents a significant scalp for Dzumhur in the tournament and suggests momentum heading into the quarter-final stage.