How to watch: From noon to 6 p.m. Eastern time on ESPN; 7 to 11 p.m. on ESPN2; and streaming on the ESPN app. In Canada on TSN from 11 a.m. to 11 p.m.; and streaming on TSN.ca and the TSN app.
Competitions to watch.
Due to the number of matches run by courts, times for individual matches are estimates and may fluctuate based on when previously played. All tenses are Eastern.
LOUIS ARMSTRONG STADIUM | 11 hours
Andrea Petkovi vs. Garbine Muguruza
Garbiñe Muguruza, a two-time major champion, has never made it past the round of 16 at the US Open. After a few tiebreaks secured her first round win, she hopes to have an easier path forward. But Andrea Petkovic has beaten Muguruza in each of their three encounters on tour. With the last meeting in 2016, before Muguruza’s Grand Slam tournament titles, Muguruza will try to shake off all mental blocks and break Petkovic’s aggressive style of play.
COURT 5 | 2:00 p.m.
Felix Auger Aliassime vs. Bernabe Zapata Miralles
Félix Auger-Aliassime, the 12th seed, defeated Evgeny Donskoy, a qualifier, in the first round, but needed four sets, with three tiebreakers, to advance to the second round, where he will play another qualifier.
Bernabé Zapata Miralles defeated Feliciano López in five sets for his first main draw in a major championship. The win will propel him into the top 100 when the men’s rankings are recalculated next week, after Miralles had won three Challenger-level titles in the past year.
ARTHUR ASHE STADIUM | 7 p.m.
Sloane Stephens vs. Coco Gauff
Coco Gauff, the 21st seed, passed Magda Linette on Monday night and came back from a set and a break to win in three sets. Sloane Stephens, the 2017 US Open women’s singles champion, also needed three sets to reach the second round, beating Madison Keys, whom she also defeated in the 2017 finals. The two Americans will meet for the first time: Stephens hopes Gauff to be overwhelmed with powerful foundations before the 17-year-old can adjust with a counter-punching rhythm.
LOUIS ARMSTRONG STADIUM | 7 p.m.
Kevin Anderson vs. Diego Schwartzman
Kevin Anderson and Diego Schwartzman will give a study in contrasts in their fourth touring meeting. Schwartzman, who is five feet tall, is over three feet shorter than Anderson, who is between 6 and 8, and their height determines their playing style. Anderson has a powerful serve and volley game, which allows him to easily penetrate the field. Schwartzman is more defensive, using his moves and excellent positional sense to outsmart opponents, even if they limit his space.
Sleeping contest of the day.
COURT 9 | 11 hours
Philipp Kohlschreiber vs. Pablo Andujar
Philipp Kohlschreiber and Pablo Andújar are veterans of the men’s tour. Elk made his debut in the early 2000s. Elk is most comfortable at the baseline, grinding away points and exhausting his opponent. For the casual fan, watching them can be a demonstration of how much effort a best-of-five set player can put in. For junior athletes, it can be a lesson in patience and consistency.