Naomi Osaka def. Katerina Siniakova
6-2 5-7 6-1
Naomi Osaka defeated Katerina Siniakova 6-2 5-7 6-1 in the 2026 US Open second round on hard courts on September 3, 2026.
Match Information
Match Statistics
| Stat | Naomi Osaka | Katerina Siniakova |
|---|---|---|
| Aces | 11 | 3 |
| Double faults | 5 | 7 |
| First serve % | 93.0% | 91.0% |
| First serve points won % | 61.0% | 51.0% |
| Second serve points won % | 57.0% | 43.0% |
| Break points saved % | 62.0% | 40.0% |
| Break points converted % | 60.0% | 38.0% |
| Service points won % | 61.0% | 50.0% |
| Return points won % | 50.0% | 39.0% |
| Total points won % | 56.0% | 44.0% |
| Serve rating | 133 | 108 |
| Return rating | 114 | 82 |
Win Probability
How the market's view of each player's chances changed through the match.
Focus the chart and use the left and right arrow keys to inspect probability updates.
Player Comparison
| Field | Naomi Osaka | Katerina Siniakova |
|---|---|---|
| Country | JPN | CZE |
| Birth date | Oct 16, 1997 | May 10, 1996 |
| Age | 28 | 30 |
| Height | 180 cm | 174 cm |
| Handedness | Right-Handed | Right-Handed |
| Backhand style | Two-Handed Backhand | Two-Handed Backhand |
| Ranking (entering) | 13 | 42 |
| Ranking points (entering) | 2,846 | 1,234 |
| Elo (entering) | 2,047 | 1,827 |
| Current career W-L | 250–135 | 228–246 |
| Current career earnings | $26,612,806 | $17,388,124 |
Path
Naomi Osaka's path
| Opponent | Score | W-L | H2H | Match Data | Date | Round |
|---|---|---|---|---|---|---|
| Anastasia Zakharova | 7-6(6) 7-6(3) | W | H2H | Match data | Sep 1, 2026 | R128 |
Naomi Osaka's next match
No later same-event match found for the winner.
Katerina Siniakova's path
| Opponent | Score | W-L | H2H | Match Data | Date | Round |
|---|---|---|---|---|---|---|
| Elisabetta Cocciaretto | 6-3 6-2 | W | H2H | Match data | Aug 31, 2026 | R128 |