OMAHA, United States,  – World record-holder Katie Ledecky is on her way to a Tokyo Olympic showdown with Australian Ariarne Titmus, locking up her 400m freestyle spot with a victory at the US Olympic swimming trials on Monday. Ledecky was virtually unchallenged when she won the 400m free at the Rio Olympics in a world record of 3min 56.46sec. But Titmus — who toppled Ledecky in the 400m free at the 2019 World Championships — fired an Olympic warning shot this week when she threatened the world record in winning … Continue reading Ledecky punches Tokyo ticket, newcomers make waves at US Olympic swim trials