Two days after winning his 20th and 21st golds, the United States’ Michael Phelps looks for another, at 9:01 p.m. central time. He advanced to the final of the 200-meter individual medley as the top qualifier Wednesday and will swim right next to longtime rival Ryan Lochte.

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Phelps will be seeking his fourth straight 200 IM title at the Olympics.

The gritty and seemingly unstoppable Katie Ledecky is also back in the pool, this time to qualify for the 800m freestyle. Fans shouldn’t be too worried: Ledecky set the world record in the event in January. Oh, she also set the three prior world records. Heats start at 1:26 p.m. She earned her third gold of the games Wednesday night in the 4×200-meter freestyle relay.

Later, the world and Olympic record holding Americans look to qualify for the finals of the 4×100 meter medley relay in heats starting at 3:30 p.m.

Medals also will be awarded in the women’s 200m breaststroke finals, which starts at 10:17 p.m., and in the men’s 200m backstroke final, which starts at 10:26 p.m.