<p>Canadian three-times Olympic champion Summer McIntosh set a world record in the women's 400 metres freestyle at the Canadian Swimming Trials in Victoria, British Columbia, on Saturday.</p><p>The 18-year-old clocked 3:54.18 to better Australian Ariarne Titmus' mark of 3:55.38 set at the 2023 World Championships in Fukuoka, Japan.</p><p>"Going into tonight, I knew that my training has been really good these past few months, and I knew that I could do something special," McIntosh told public broadcaster <em>CBC.</em></p><p>"So being able to input my training in doing that - I didn't think my training would be 54.1 but I'm really happy with that."</p>.Gauff upsets Sabalenka to win French Open title.<p>At the Paris Olympics, McIntosh became the first athlete from Canada to win three gold medals at a single Olympic Games.</p><p>In Paris, the four-times World Aquatics champion won gold in the 400 metres individual medley, 200 butterfly and 200 individual medley, as well as taking silver in the 400 freestyle.</p><p>But things felt different at the Canada trials.</p><p>"I just felt so strong throughout, and that's never been the case in the 400 freestyle for me. That last 100, I'm always really, really hurting.</p><p>"But I flipped at the 200 and I was just cruising, so I knew that I was having a strong swim. I could tell by the crowd and knew the way they were cheering that I was probably close to the world record.</p><p>"So I really tried to push that last part for them." </p>
<p>Canadian three-times Olympic champion Summer McIntosh set a world record in the women's 400 metres freestyle at the Canadian Swimming Trials in Victoria, British Columbia, on Saturday.</p><p>The 18-year-old clocked 3:54.18 to better Australian Ariarne Titmus' mark of 3:55.38 set at the 2023 World Championships in Fukuoka, Japan.</p><p>"Going into tonight, I knew that my training has been really good these past few months, and I knew that I could do something special," McIntosh told public broadcaster <em>CBC.</em></p><p>"So being able to input my training in doing that - I didn't think my training would be 54.1 but I'm really happy with that."</p>.Gauff upsets Sabalenka to win French Open title.<p>At the Paris Olympics, McIntosh became the first athlete from Canada to win three gold medals at a single Olympic Games.</p><p>In Paris, the four-times World Aquatics champion won gold in the 400 metres individual medley, 200 butterfly and 200 individual medley, as well as taking silver in the 400 freestyle.</p><p>But things felt different at the Canada trials.</p><p>"I just felt so strong throughout, and that's never been the case in the 400 freestyle for me. That last 100, I'm always really, really hurting.</p><p>"But I flipped at the 200 and I was just cruising, so I knew that I was having a strong swim. I could tell by the crowd and knew the way they were cheering that I was probably close to the world record.</p><p>"So I really tried to push that last part for them." </p>