The first individual short track medals are on the line Monday in the women’s 500m and men’s 1000m competitions. 

The field is down to 20 skaters in each discipline who advanced to the quarterfinal from Saturday's heats. Ten will move on to the semifinal, and the first- and second-place skaters in each will proceed to a four-athlete final race.

The event starts with four quarterfinal races containing five skaters in each. 

Americans Kristen Santos and Maame Biney clinched spots in the women's 500m quarterfinal while Andrew Heo and Ryan Pivirotto did the same in the men’s 1000m.

Santos, who finished first in her heat, drew a difficult field in Quarterfinal 4. She will race against 24-year-old Suzanne Schulting of the Netherlands, who set the Olympic record in a blistering skate on Saturday.

Biney will also have to compete with a young, dynamic Dutch skater, Selma Poutsma, in Quarterfinal 2.

Quarterfinal 3 includes a rematch between Italy’s Arianna Fontana and South Korean skater Choi Min-Jeong. The two were involved in a photo finish of the women’s 500m final at the 2018 Winter Olympics, and Fontana won the gold. Choi, though, was disqualified for interference and did not receive a silver medal. 

Fontana is the all-time leader in short track medals with nine, and she has finished on the podium for the 500m at three straight Olympics. 

Heo will skate in Quarterfinal 1, a field with Wu Dajing, the two-time Olympic gold medalist from China. Wu crossed the finish line in the mixed team relay final on Saturday to secure the first short track gold medals of these Olympics. The U.S. was disqualified for blocking in the semifinal of the event, which sent China through. 

Pivirotto is in Quarterfinal 4, which is a loaded group that includes Hungary’s Liu Shaolin and South Korea’s Hwong Dae-Heon. Both Liu and Hwong finished top-eight in the 2021-2022 World Cup standings and won their heats on Saturday. 

The men’s 1000m final was also chaotic in 2018.

Three of the five skaters slid out, leaving Canada’s Sam Girard and America’s John-Henry Kreuger to take gold and silver, respectively. Krueger is skating for Hungary at the 2022 Winter Olympics and will race in Quarterfinal 3.

The action begins at 6:30 a.m. ET on Monday.

See full results from the women's 500m and men's 1000m heats on NBCOlympics.com, and check out the full short track streaming schedule.