US Open Day 1: Latest men's and women's draw results

The final grand slam championship of the professional tennis season, the U.S. Open, is off and running.

Reigning women's champion Coco Gauff had a fairly easy straight sets victory over Varvara Gracheva, 6-2, 6-0. Meanwhile, fellow American and 2017 women's champion, Sloane Stephens, seemed to have things in hand up 6-0, 3-0 against Claire Burel of France, but ended up losing the final two sets 7-5.

On the men's side, Novak Djokovic began his bid for a record 25th Grand Slam title and tied Roger Federer with his 89th match win at the U.S. Open by defeating qualifier Radu Albot of Moldova 6-2, 6-2, 6-4 on Monday night.

Here's a look at who else advanced and who didn't at Flushing Meadows on Monday. (For Day 2 results click here.)

Day 1 men's singles, first round results

Ugo Humbert (17), France, def. Thiago Monteiro, Brazil, 6-3, 6-4, 6-4.

Ben Shelton (13), United States, def. Dominic Thiem, Austria, 6-4, 6-2, 6-2.

Alexander Zverev (4), Germany, def. Maximilian Marterer, Germany, 6-2, 6-7 (5), 6-3, 6-2.

Francisco Comesana, Argentina, def. Dominic Stricker, Switzerland, 4-6, 6-3, 7-6 (4), 6-3.

Roberto Bautista Agut, Spain, def. Luca Nardi, Italy, 7-5, 7-6 (3), 7-6 (5).

Mitchell Krueger, United States, def. Hugo Grenier, France, 4-6, 6-3, 6-4, 7-5.

Juncheng Shang, China, def. Alexander Bublik (27), Kazakhstan, 6-4, 3-6, 5-7, 6-3, 6-4.

Matteo Berrettini, Italy, def. Albert Ramos-Vinolas, Spain, 7-6 (2), 6-2, 6-3.

Casper Ruud (8), Norway, def. Bu Yunchaokete, China, 7-6 (2), 6-2, 6-2.

Alexei Popyrin (28), Australia, def. Kwon Soon Woo, South Korea, 7-5, 6-2, 6-3.

Roberto Carballes Baena, Spain, def. Jan Choinski, Britain, 6-2, 6-3, 5-7, 6-7 (5), 6-3.

Taylor Fritz (12), United States, def. Camilo Ugo Carabelli, Argentina, 7-5, 6-1, 6-2.

Andrey Rublev (6), Russia, def. Thiago Seyboth Wild, Brazil, 6-3, 7-6 (3), 7-5.

Jiri Lehecka (32), Czechia, def. Marton Fucsovics, Hungary, 1-6, 6-4, 6-3, 3-0, ret.

Tomas Martin Etcheverry, Argentina, def. Giovanni Mpetshi Perricard, France, 6-4, 6-2, 6-3.

Francisco Cerundolo (29), Argentina, def. Sebastian Ofner, Austria, 5-7, 6-4, 6-4, 6-2.

Pedro Martinez, Spain, def. Maks Kasnikowski, Poland, 6-7 (6), 6-1, 6-2, 3-6, 7-6 (6).

Grigor Dimitrov (9), Bulgaria, def. Kyrian Jacquet, France, 6-3, 6-4, 6-2.

Lorenzo Musetti (18), Italy, def. Reilly Opelka, United States, 7-6 (3), 1-6, 6-1, 7-5.

Gael Monfils, France, def. Diego Schwartzman, Argentina, 6-7 (2), 6-2, 6-2, 6-1.

Alexandre Muller, France, def. Adam Walton, Australia, 3-6, 7-6 (7), 6-3, 6-4.

Miomir Kecmanovic, Serbia, def. Yoshihito Nishioka, Japan, 7-6 (2), 2-6, 5-7, 7-5, 1-0, ret.

Alexander Shevchenko, Russia, def. Dominik Koepfer, Germany, 6-3, 7-5, 5-7, 6-2.

Brandon Nakashima, United States, def. Holger Rune (15), Denmark, 6-2, 6-1, 6-4.

Rinky Hijikata, Australia, def. Alejandro Davidovich Fokina, Spain, 7-6 (1), 3-6, 6-4, 6-3.

Arthur Rinderknech, France, def. Christopher Eubanks, United States, 6-4, 4-6, 3-6, 6-3, 7-6 (8).

Arthur Cazaux, France, def. Pablo Carreno Busta, Spain, 6-1, 6-3, 6-3.

Sebastian Baez (21), Argentina, def. Luciano Darderi, Italy, 6-4, 6-7 (3), 6-0, 7-6 (4).

Tallon Griekspoor, Netherlands, def. Sumit Nagal, India, 6-1, 6-3, 7-6 (6).

Frances Tiafoe (20), United States, def. Aleksandar Kovacevic, United States, 6-4, 6-3, 4-6, 7-5.

Laslo Djere, Serbia, def. Jan-Lennard Struff, Germany, 6-7 (7), 6-1, 6-7 (7), 6-4, 6-2.

Novak Djokovic (2), Serbia, def. Radu Albot, Moldova, 6-2, 6-2, 6-4.

Day 1 women's singles, first round results

Wang Yafan, China, def. Maria Sakkari (9), Greece, 6-2, ret.

Daria Kasatkina (12), Russia, def. Jaqueline Adina Cristian, Romania, 6-2, 6-4.

Donna Vekic (24), Croatia, def. Kimberly Birrell, Australia, 6-4, 6-4.

Erika Andreeva, Russia, def. Yuan Yue, China, 6-3, 7-6 (7).

Diane Parry, France, def. Wang Xiyu, China, 7-6 (2), 7-6 (5).

Elina Svitolina (27), Ukraine, def. Maria Carle, Argentina, 3-6, 6-3, 6-4.

Zheng Qinwen (7), China, def. Amanda Anisimova, United States, 4-6, 6-4, 6-2.

Jule Niemeier, Germany, def. Dayana Yastremska (32), Ukraine, 6-4, 6-7 (3), 6-4.

Greet Minnen, Belgium, def. Magdalena Frech, Poland, 7-5, 7-5.

Anhelina Kalinina, Ukraine, def. Oceane Dodin, France, 6-1, 3-6, 6-1.

Paula Badosa (26), Spain, def. Viktorija Golubic, Switzerland, 6-0, 6-3.

Tatjana Maria, Germany, def. Solana Sierra, Argentina, 6-2, 6-3.

Coco Gauff (3), United States, def. Varvara Gracheva, Russia, 6-2, 6-0.

Maya Joint, Australia, def. Laura Siegemund, Germany, 6-4, 7-5.

Peyton Stearns, United States, def. Lesia Tsurenko, Ukraine, 6-1, 7-5.

Madison Keys (14), United States, def. Katerina Siniakova, Czechia, 6-4, 6-1.

Taylor Townsend, United States, def. Martina Trevisan, Italy, 6-2, 7-5.

Moyuka Uchijima, Japan, def. Tamara Korpatsch, Germany, 3-6, 6-3, 6-4.

Elise Mertens, Belgium, def. Veronika Kudermetova, Russia, 3-6, 6-4, 6-3.

Ajla Tomljanovic, Australia, def. Ann Li, United States, 6-4, 6-4.

Marta Kostyuk (19), Ukraine, def. McCartney Kessler, United States, 6-2, 6-3.

Emma Navarro (13), United States, def. Anna Blinkova, Russia, 6-1, 6-1.

Iva Jovic, United States, def. Magda Linette, Poland, 6-4, 6-3.

Barbora Krejcikova (8), Czechia, def. Marina Bassols Ribera, Spain, 7-6 (3), 6-2.

Arantxa Rus, Netherlands, def. Ana Bogdan, Romania, 6-4, 7-6 (5).

Harriet Dart, Britain, def. Chloe Paquet, France, 6-1, 6-2.

Elena-Gabriela Ruse, Romania, def. Julia Grabher, Austria, 6-2, 6-4.

Victoria Azarenka (20), Belarus, def. Yuliia Starodubtseva, Ukraine, 3-6, 6-1, 6-1.

Clara Burel, France, def. Sloane Stephens, United States, 0-6, 7-5, 7-5.

Lucia Bronzetti, Italy, def. Lulu Sun, New Zealand, 6-3, ret.

Ekaterina Alexandrova (29), Russia, def. Viktoriya Tomova, Bulgaria, 6-7 (4), 6-0, 7-5.

What's the schedule for Day 2?

Here's the schedule for Day 2 action at the U.S. Open. Key matchups at Arthur Ashe Stadium include:

• No. 3 seed Carlos Alcaraz of Spain against Li Tu of Australia
• No. 1 seed Iga Swiatek of Poland against Kamilla Rakhimova
• No. 1 seed Janik Sinner of Italy against Mackenzie MacDonald of the U.S.
• No. 6 seed Jessica Pegula against fellow American Shelby Rogers

What does the current bracket look like?

For live updates and latest bracket results, visit USOpen.org.