Things to Know About 4-Time Olympic Gold Medalist Katie Ledecky

United States’ Katie Ledecky competes during a women’s 800-meter freestyle heat during the swimming competitions at the 2016 Summer Olympics, Thursday, Aug. 11, 2016, in Rio de Janeiro, Brazil.

But one person who has proven to be an incredible asset after major swimming races is Michele Tafoya, who has unearthed nuggets about Katie Ledecky’s nerves and Michael Phelps’ revenge on Tuesday night.

She already held the world records in the 400-, 800-, and 1,500-meter freestyle coming into the RIo Games and broke her own record in the 400m when she won gold on Sunday.

Ledecky also became only the third American woman to win four gold medals in a single Olympics, following fellow swimmers Amy Van Dyken and Missy Franklin. Action gets under way this afternoon with the Day Six preliminary heats – men’s 50 freestyle, women’s 800 freestyle, men’s 100 butterfly and women’s 200 backstroke.

In a furious down-and-back sprint, Chalmers rallied on the return lap to win with a time of 47.58 seconds.

“I thought the world would just be better off without me”, Phelps said.

Ledecky outpaced second-place finisher Boglarka Kapas of Hungary by nearly seven seconds.

Ledecky was just 15 at the Summer Games four years ago, making her the youngest member of Team USA at the time. She will swim in the event’s final on Friday.

The first, in the 26th minute, was Colombia’s first ever Olympic goal, and first ever goal against the United States.

Three-time gold medalist Kerri Walsh Jennings and her partner April Ross dropped the second set vs.

A stunner at the Rio Olympics: Michael Phelps was beaten. “I’d love to race him again somewhere along the line in the 200 fly”. Another American, Nathan Adrian, took the bronze.

US swimmers Maya DiRado and Missy Franklin advanced to Thursday night’s semifinals for the women’s 200-meter backstroke, posting the third and 11th fastest times, respectively. The top-ranked American won’t get a chance to defend the gold she won in London. Others making the final were Jazz Carlin of Britain, American Leah Smith, Lotte Friis of Denmark and Mireia Belmonte Garcia of Spain, who won the 200 butterfly on Wednesday. Will she end her time in Rio on a high note? “I need one more gold to pass everyone else”.