Katie Ledecky got off to a rousing start Saturday at the U.S. Olympic swimming trials.

Competing in the home stadium of the NFLs Indianapolis Colts , Ledecky blew away the field in the preliminaries of the 400-meter freestyle, touching the wall with a time of 3 minutes, 59.99 seconds.

Ledecky finished nearly five seconds ahead of Paige Madden, who was next fastest at 4:04.83. The top eight advanced to the evening final, with Ledecky an overwhelming favorite to claim a spot on her fourth Olympic team.