ATP Miami Open Round-Up Day Six | Sebastian Korda reshapes the draw after stunning Carlos Alcaraz as Stefanos Tsitsipas suffers bagel defeat

Sebastian Korda delivered the defining result of the day at the Miami Open, eliminating Carlos Alcaraz to reach the Round of 16, while Arthur Fils produced one of the most one-sided performances of the tournament against Stefanos Tsitsipas. Taylor Fritz also progressed with a controlled display, maintaining the presence of top seeds heading into the second week.

The fourth round now reflects a shifting balance between established contenders and emerging names. Korda’s win significantly alters his section of the draw, while Fils continues to build momentum with consistent performances against top opposition. Elsewhere, steady progress from Fritz and Jiri Lehecka reinforces a group of players advancing through efficiency rather than volatility.

Fils advanced to the Round of 16 with a performance that established control from the opening games and never allowed a reset. He broke immediately and extended rallies into patterns that exposed Tsitsipas’ difficulty on the backhand side, particularly when forced to defend from deeper positions. The first set quickly became one-directional, with Fils dictating tempo and Tsitsipas unable to stabilise his service games.

That structure continued into the second set, even after Tsitsipas managed to hold once. Fils responded by maintaining pressure on return and closing the space between points, preventing any momentum shift. His ability to recover quickly between rallies and reapply pressure meant Tsitsipas never established consecutive holds or rhythm from the baseline.

The statistical gap reflected that control. Fils won 89% of first-serve points and 69% on second serve, while also taking 74% of Tsitsipas’ second-serve points. Tsitsipas held just one of seven service games, which removed any possibility of scoreboard pressure. Fils now faces Valentin Vacherot, entering the fourth round with a level built on consistency and early control of rallies.

Korda moved into the Round of 16 with a win shaped by controlled phases rather than sustained dominance. He took the first set by maintaining a consistent serve-plus-one pattern and limiting errors in extended rallies. Alcaraz gradually increased his aggression in the second, recovering from 3-5 down by stepping forward on return and forcing shorter points to level the match.

The third set settled into a more balanced structure, with both players holding comfortably through the early games. The decisive moment came when Korda created pressure on Alcaraz’s second serve, earning the break that allowed him to move ahead 4-3. From there, he managed his service games without allowing a late shift, maintaining depth and reducing unforced errors.

Korda’s serving efficiency proved central. He hit 12 aces and won 69% of first-serve points, while also taking 58% of second-serve return points. Alcaraz dropped to 42% on second serve, which limited his ability to control rallies under pressure. Korda now faces Martin Landaluce, with the result opening a section of the draw that had previously been anchored by the top seed.

Fritz progressed into the Round of 16 by maintaining a clear structure in a match where opportunities were limited. Both players relied heavily on serve, but Fritz was more effective in extending rallies when required. He secured the only break in the first set after a slight drop in Opelka’s first-serve percentage, then controlled his own service games to close the set without pressure.

The second set followed a similar pattern, with holds dominating the early exchanges. Fritz again capitalised on a narrow opening midway through the set, applying pressure on second serve to create the decisive break. From that point, he maintained a consistent first-serve pattern and avoided giving Opelka any opportunity to re-enter the match.

Fritz won 93% of first-serve points and 73% on second serve, while not facing a single break point. Opelka’s second serve dropped to 41%, which created the only openings in an otherwise tight match. Fritz now faces Jiri Lehecka, in a fourth-round contest likely to be defined by similar serve-dominant dynamics.

Lehecka reached the Round of 16 with a performance built on consistency rather than fluctuation. The first set remained balanced through the early stages before he created separation late, winning three consecutive games to secure the break. His ability to maintain depth on serve and limit return opportunities prevented Quinn from establishing pressure.

The second set followed a more controlled pattern, with both players holding throughout and neither creating clear chances on return. Lehecka maintained a stable service rhythm and carried that into the tiebreak, where he managed the key points through controlled aggression rather than risk-taking.

He won 81% of first-serve points and did not face a break point during the match, removing any sustained pressure. Quinn remained competitive but was unable to generate opportunities on return. Lehecka now faces Taylor Fritz, in a matchup between two players whose progress has been built on efficiency and service control.

Landaluce advanced to the Round of 16 with a performance that combined early control with composure in key moments. He took the opening set by breaking early and maintaining steady service games, limiting Khachanov’s ability to dictate from the baseline. His shot selection remained controlled, focusing on depth rather than risk.

The second set became more complex as Khachanov increased pressure, particularly on return. Landaluce faced moments where momentum could have shifted, including trailing in the tiebreak, but maintained consistency and avoided over-committing in longer rallies. His ability to extend exchanges without losing structure proved decisive.

He won 77% of first-serve points and 62% of second-serve return points, consistently applying pressure on Khachanov’s service games. Khachanov dropped to 38% on second serve, which limited his ability to regain control. Landaluce now faces Sebastian Korda, with both players entering the fourth round after wins that reshape this section of the draw.

Paul moved into the Round of 16 after a match defined by shifting control across sets. He dominated the opening set through aggressive return positioning and repeated breaks, while Collignon responded in the second by improving first-serve consistency and reducing errors. The match reset heading into the decider, where both players held serve without creating separation.

The third set was shaped by stability rather than risk. Neither player generated break opportunities, forcing the match into a tiebreak where Paul relied on controlled shot selection and consistency rather than aggression. His ability to manage the longer exchanges proved important in the final phase.

Paul won 63% of second-serve points and 61% of second-serve return points, giving him a marginal but consistent edge. Collignon’s second serve dropped to 39%, which limited his ability to control rallies under pressure. Paul now faces Tomas Martin Etcheverry, in a matchup that will test his ability to sustain control across longer exchanges.

Vacherot advanced to the Round of 16 in a match where both players maintained strong serving patterns and opportunities were limited. The opening set remained on serve throughout before being decided in a tiebreak, where Vacherot managed the key points with slightly greater consistency. The second set followed a similar structure until a brief drop in Berrettini’s level created the only break.

From that point, Vacherot focused on maintaining first-serve efficiency and reducing risk in rallies. Berrettini remained competitive but was unable to generate break opportunities, leaving the match dependent on small margins.

Vacherot won 86% of first-serve points and 68% on second serve, while also converting one of two break points. Berrettini dropped to 47% on second serve, which proved decisive in the limited return opportunities. Vacherot now faces Arthur Fils, in a matchup that contrasts serving efficiency with aggressive baseline control.