Karolína Muchová defeated Victoria Mboko 7–5, 7–6 in the Miami Masters 1000 quarter-final on hard court on 24 March 2026. Despite being a marginal favourite at odds of 1.88, Muchová delivered a composed performance against her evenly matched opponent, who entered the contest at 1.89. The Czech player secured both sets in tight circumstances, with the second set requiring a tiebreak to separate the pair. Muchová's victory maintains her momentum in Miami and advances her deeper into the tournament's latter stages.