The 38-year-old American will face the winner of the match between Russian Anastasia Potapova and Canadian Leylah Fernandez, the No 23 seed, next.
New York (Grand Slam), other first-round results (USTA Billie Jean King National Tennis Center, hard, USD 75.000.000, most recent results first):
- Shelby Rogers vs. Jessica Pegula
- Bianca Andreescu vs. Jasmine Paolini
- Emma Raducanu vs. Sofia Kenin
- Eva Lys vs. Marie Bouzkova
- Yulia Putintseva vs. Linda Noskova
- Beatriz Haddad Maia vs. Elina Avanesyan
- Qiang Wang vs. Liudmila Samsonova
- Anastasia Potapova vs. Leylah Fernandez: tuesday
- Nadia Podoroska vs. Diana Shnaider: tuesday
- Sara Sorribes Tormo vs. Alexa Noel: tuesday
- Mayar Sherif vs. Karolina Pliskova: tuesday
- Anna Karolina Schmiedlova vs. Clara Tauson: tuesday
- Xinyu Wang vs. Arina Rodionova: tuesday
- Anna Bondar beat Bernarda Pera: 6-3, 3-6, 6-3
- Elena Rybakina (4) beat Destanee Aiava (Q): 6-1, 7-6 (1)
- Anna Kalinskaya (15) beat Lauren Davis: 6-2, 6-2
- Jessica Bouzas Maneiro beat Petra Martic: 6-3, 6-0
- Renata Zarazua beat Caroline Garcia (28): 6-1, 6-4
- Naomi Osaka (WC) beat Jelena Ostapenko (10): 6-3, 6-2
- Caroline Wozniacki beat Nao Hibino (Q): 6-0, 6-1
- Mirra Andreeva (21) beat Camila Osorio: 6-2, 7-6 (4)
- Elisabetta Cocciaretto beat Kateryna Baindl: 6-3, 6-0
- Iga Swiatek (1) beat Kamilla Rakhimova (LL): 6-4, 7-6 (6)
- Ashlyn Krueger beat Shuai Zhang: 0-6, 6-1, 7-5
- Jessika Ponchet (Q) beat Saisai Zheng: 6-4, 6-1
- Anastasia Pavlyuchenkova (25) beat Taylah Preston (WC): 6-2, 6-0
- Karolina Muchova beat Katie Volynets: 6-3, 7-5
- Sara Errani beat Cristina Bucsa: 3-6, 6-0, 6-4
- Caroline Dolehide beat Danielle Collins (11): 1-6, 7-5, 6-4
- Ena Shibahara (Q) beat Daria Saville: 6-3, 4-6, 7-6 (6)
- Katie Boulter (31) beat Aliaksandra Sasnovich (Q): 5-7, 6-2, 6-1
- Aryna Sabalenka (2) beat Priscilla Hon (Q): 6-3, 6-3
- Lucia Bronzetti beat Lulu Sun: 6-3 ret.
- Ekaterina Alexandrova (29) beat Viktoriya Tomova: 6-7 (4), 6-0, 7-5
- Elena-Gabriela Ruse (Q) beat Julia Grabher: 6-2, 6-4
- Harriet Dart beat Chloe Paquet (WC): 6-1, 6-2
- Clara Burel beat Sloane Stephens: 0-6, 7-5, 7-5
- Victoria Azarenka (20) beat Yulia Starodubtseva (Q): 3-6, 6-1, 6-1
- Emma Navarro (13) beat Anna Blinkova: 6-1, 6-1
- Barbora Krejcikova (8) beat Marina Bassols Ribera (Q): 7-6 (3), 6-2
- Iva Jovic (WC) beat Magda Linette: 6-4, 6-3
- Marta Kostyuk (19) beat McCartney Kessler (WC): 6-2, 6-3
- Arantxa Rus beat Ana Bogdan: 6-4, 7-6 (5)
- Ajla Tomljanovic beat Ann Li (Q): 6-4, 6-4
- Madison Keys (14) beat Katerina Siniakova: 6-4, 6-1
- Elise Mertens (33) beat Veronika Kudermetova: 3-6, 6-4, 6-3
- Taylor Townsend beat Martina Trevisan: 6-2, 7-5
- Peyton Stearns beat Lesia Tsurenko: 6-1, 7-5
- Moyuka Uchijima beat Tamara Korpatsch: 3-6, 6-3, 6-4
- Maya Joint (Q) beat Laura Siegemund: 6-4, 7-5
- Coco Gauff (3) beat Varvara Gracheva: 6-2, 6-0
- Tatjana Maria beat Solana Sierra (Q): 6-2, 6-3
- Paula Badosa (26) beat Viktorija Golubic: 6-0, 6-3
- Anhelina Kalinina beat Oceane Dodin: 6-1, 3-6, 6-1
- Greet Minnen beat Magdalena Frech: 7-5, 7-5
- Erika Andreeva beat Yue Yuan: 6-3, 7-6 (7)
- Donna Vekic (24) beat Kimberly Birrell (Q): 6-4, 6-4
- Jule Niemeier beat Dayana Yastremska (32): 6-4, 6-7 (3), 6-4
- Qinwen Zheng (7) beat Amanda Anisimova (WC): 4-6, 6-4, 6-2
- Elina Svitolina (27) beat Maria Lourdes Carle: 3-6, 6-3, 6-4
- Yafan Wang beat Maria Sakkari (9): 6-2 ret.
- Diane Parry beat Xiyu Wang: 7-6 (2), 7-6 (5)
- Daria Kasatkina (12) beat Jaqueline Cristian: 6-2, 6-4