Mirra Andreeva #5Russia22 – 1Anastasia Potapova #27Austria1

Andreeva, 19, is ranked No. 5 and has won 11 of her last 15 matches, including a 6-0 6-2 win over Eva Lys in the previous round. Potapova, 25, is ranked No. 25 and has won three consecutive matches, including a 6-2 7-5 win over No. 10 Amanda Anisimova.

Both players enter in strong form, but Andreeva's recent results have been more dominant, with a 73.3% win rate and 61.7% games won in her last 15 matches compared to Potapova's 53.3% and 48.7%. Andreeva has also won her last two matches in straight sets, while Potapova needed three sets in her previous round. This suggests Andreeva may have a slight edge in current level, but Potapova's win over a top-10 opponent shows she can compete with elite players.

Andreeva's hard-court stats in her last 7 matches show a first-serve points won rate of 75.2% and return points won of 47.9%. Potapova's corresponding numbers are 67.9% and 43.6%.

Andreeva's superior first-serve effectiveness and return performance could give her an advantage in baseline exchanges and break-point opportunities. However, Potapova has a higher break-point conversion rate on hard courts (48.8% vs 55.3%), which may help her capitalize on chances. The match may hinge on whether Potapova can pressure Andreeva's second serve, where Andreeva wins only 45.6% of points.

Andreeva has won three of four matches against Potapova, with victories on clay, hard, and grass. Potapova's only win came in 2022.

Andreeva's 3-1 head-to-head advantage includes a 6-1 6-3 win at the 2025 US Open, which may give her confidence on this stage. However, Potapova's recent form and her win over Anisimova suggest she is capable of challenging. The H2H pattern favors Andreeva, but the sample is small and Potapova has improved since their last meeting.

Both players are in the US Open fourth round for the first time, so neither has prior second-week experience at this event. The winner will reach a first quarterfinal here.