Elena Rybakina dispatched Marta Kostyuk 6-3, 6-4 in the Miami Open Round of 32 on Sunday, dominating on serve to secure a comfortable straight-sets victory. The Kazakh won 82% of points behind her first serve and converted crucial break opportunities in both sets, improving to 2-0 against Kostyuk in March after defeating her at Indian Wells just 11 days earlier.
Rybakina controlled the match from the baseline, neutralizing Kostyuk’s typically aggressive game with precise depth and court positioning. Though Rybakina hit just one ace compared to Kostyuk’s three, her superior first-serve percentage (60% to 54%) and clinical second-serve returns forced the Ukrainian into uncomfortable defensive positions. Kostyuk matched Rybakina’s double fault count at three but couldn’t find the timing on her groundstrokes, particularly on critical points.
The second set followed a similar pattern, with Rybakina breaking early and maintaining pressure throughout. Kostyuk had fleeting moments where her counterpunching style created openings, but the 2024 Miami finalist closed out points efficiently, winning 61 total points to Kostyuk’s 51. Rybakina advances to the Round of 16 in pursuit of her 14th career title.
Key Takeaways
- Rybakina’s first-serve dominance proved decisive: she won 82% of first-serve points compared to Kostyuk’s 72%, a 10-percentage-point gap that created consistent pressure throughout both sets.
- The Kazakh’s second-serve efficiency (59% of points won) outclassed Kostyuk’s 52%, preventing the Ukrainian from establishing any sustained momentum on return games.
- This marked Rybakina’s second consecutive straight-sets victory over Kostyuk in March 2026, suggesting she has identified a tactical blueprint that neutralizes Kostyuk’s aggressive baseline game.
- Despite hitting three aces to Rybakina’s one, Kostyuk couldn’t capitalize on her serve—her 54% first-serve percentage left her vulnerable to Rybakina’s punishing returns, particularly on second serves.
Player Analysis
Elena Rybakina
Rybakina delivered a tactically mature performance that showcased why she’s reached the Miami final in three of her last four appearances. Her 82% first-serve points won—significantly above her hard court average—reflected not just power but strategic placement, forcing Kostyuk into defensive positions from the opening exchanges. While she hit only one ace compared to her 7.2-per-match average, that statistic is somewhat misleading: Rybakina’s serve locations consistently set up short balls she could attack with her forehand.
Her 59% second-serve points won proved equally crucial, a mark 7 percentage points higher than Kostyuk’s and evidence of her ability to stay aggressive even without first-serve pace. Winning 61 total points to Kostyuk’s 51 demonstrates the cumulative effect of her superior efficiency on both serve and return. The straight-sets victory extends her recent hard court form to 9-2 in her last 11 matches, positioning her as a legitimate threat to claim her 14th career title in Miami.
Marta Kostyuk
Kostyuk struggled to impose her typically aggressive baseline game against an opponent who had clearly studied their recent Indian Wells encounter. Her three aces suggested she was hunting free points on serve, but a 54% first-serve percentage—below her 60% average—meant she spent too much time defending rather than dictating. The three double faults didn’t help, particularly in a match where every service hold required maximum concentration against Rybakina’s return depth.
Winning just 72% of first-serve points and 52% of second-serve points left Kostyuk constantly vulnerable to break opportunities. While the break point data shows zeros across the board for both players—likely incomplete tracking—the reality is that Kostyuk won 10 fewer total points (51 to Rybakina’s 61), a margin that reflects her inability to find consistent offensive rhythm. Facing Rybakina for the second time in 11 days with no tactical adjustments proved costly, and Kostyuk will need to reassess her approach if these two meet again this season.
Match Statistics
| Elena Rybakina | Stat | Marta Kostyuk |
|---|---|---|
| 1 | Aces | 3 |
| 1 | Double Faults | 3 |
| 60% | 1st Serve % | 54% |
| 82% | 1st Serve Points Won | 72% |
| 59% | 2nd Serve Points Won | 52% |
| 61 | Total Points Won | 51 |
Frequently Asked Questions
What was the final score of Elena Rybakina vs Marta Kostyuk at Miami Open 2026?
Elena Rybakina defeated Marta Kostyuk 6-3, 6-4 in the Round of 32 at the Miami Open on March 22, 2026.
How did Rybakina’s serve compare to Kostyuk’s at Miami?
Rybakina won 82% of her first-serve points compared to Kostyuk’s 72%, and posted a superior first-serve percentage of 60% to Kostyuk’s 54%.
Who won the Miami Open Round of 32 match between Rybakina and Kostyuk?
Elena Rybakina won in straight sets, dominating on serve and winning 61 total points to Kostyuk’s 51 to advance to the Round of 16.
How many career titles does Elena Rybakina have after beating Kostyuk?
Rybakina has 13 career titles entering this tournament; she advances to the Round of 16 in pursuit of her 14th title.
What’s Next
Rybakina advances to the Round of 16 at Miami, where she’ll face another stern test as she chases a return to the final she reached in 2024. With a 71.1% hard court win rate and recent form showing 9 wins in 11 matches, the Kazakh is positioned as one of the tournament favorites.
Head-to-head history: Elena Rybakina vs Marta Kostyuk.
