Summer McIntosh demolishes world record in 400m freestyle at Canadian swimming trials | #CBCSports

Summer McIntosh vs Katie Ledecky | Women’s 400m Freestyle Final Showdown

Ledecky sets 400m Freestyle world record with comfortable win

Summer McIntosh SNEAKS past Katie Ledecky for women's 400m freestyle win at U.S. Open | NBC Sports

Summer McIntosh breaks own world record in 400m IM at Canadian swim trials | CBC Sports

Women's 400m Freestyle Final | Tokyo 2020

Ariarne Titmus breaks women's 400m freestyle record at Australian Championships

New World Record | Women's 400m Freestyle Ariarne Titmus interview | 2022 Aus Swimming Championships

Sydney McLaughlin-Levrone wins EPIC 400m final in 2nd fastest time ever | Top Performance Day 7

Shiwen Ye Sets World Record In Womens 400 Meter IM

Hungary's Iron Lady smashes 400m individual medley record in Rio

🏅 Summer McIntosh Shatters World Record Once Again! | World Aquatics Swimming Championships 2024

This Australian Relay SHATTERED The World Record... and They Could Have Gone Faster

New World Record | Women's 400m Freestyle Ariarne Titmus | 2022 Australian Swimming Championships

Katie Ledecky Posts the Fastest Time of The Year | Women’s 400m Free A Final

Katie Ledecky Breaks U.S Open Record in Women’s 400M Freestyle | 2021 Toyota U.S. Open

Katie Ledecky Swims 2nd Fastest Time In World | Women's 400m Free A Fina | 2019 TYR Pro Swim Series

A New World Record! | Men's 100m Freestyle | #Paris2024 Highlights