Japanese Moyuka Uchijima won against American Jessica Pegula, the No 3 seed, 6-3, 6-2 to advance to the last 16 of the Madrid Open at the Caja Mágica.

Uchijima, ranked No 56, will face the winner of the match between Russian Ekaterina Alexandrova, the No 21 seed, and Australian Daria Kasatkina, the No 14 seed, next.

The Japanese beat American wildcard Robin Montgomery (1-6, 6-4, 6-3) and edged out Tunisian Ons Jabeur, the No 26 seed (4-6, 6-3, 6-4) earlier in the tournament.

In the previous round of the Madrid tournament, Pegula, ranked No 3, defeated German Eva Lys (6-2, 6-2).

Madrid WTA 1000, other third-round results (Caja Mágica, clay, EUR 7.854.000, most recent results first):

• Ekaterina Alexandrova vs. Daria Kasatkina
• Elena Rybakina vs. Elina Svitolina
• Rebeka Masarova vs. Peyton Stearns: sunday
• Maria Sakkari beat Jasmine Paolini (6): 6-2, 6-1
• Anastasia Potapova beat Sofia Kenin (32): 3-6, 6-4, 7-6 (6)
• Marta Kostyuk (24) beat Veronika Kudermetova: 6-0, 4-6, 6-4
• Aryna Sabalenka (1) beat Elise Mertens (28): 3-6, 6-2, 6-1
• Donna Vekic (19) beat Emma Navarro (11): 4-6, 6-3, 6-2
• Iga Swiatek (2) beat Linda Noskova (31): 6-4, 6-2
• Coco Gauff (4) beat Ann Li: 6-2, 6-3
• Belinda Bencic beat Beatriz Haddad Maia (16): 6-3, 4-6, 7-6 (2)
• Madison Keys (5) beat Anna Kalinskaya (30): 7-5, 7-6 (3)
• Yuliia Starodubtseva (Q) beat Liudmila Samsonova (18): 2-6, 7-6 (2), 6-0
• Diana Shnaider (13) beat Anastasija Sevastova: 6-0, 6-0
• Mirra Andreeva (7) beat Magdalena Frech (27): 7-5, 6-3