Summer McIntosh at world short course swim championships | CBC ...

Summer McIntosh set her third world record and claimed a third gold medal at the world short course swim championships on Saturday in Budapest, Hungary.

The 18-year-old Canadian won the women's 400-metre individual medley final in four minutes, 15.48 seconds, smashing the previous record by more than three seconds.

The previous mark was 4:18.94, set by Spain's Mireia Belmonte in August of 2017.

"It was super surreal. The crowd was extra energetic tonight," said McIntosh after four other records were set earlier in the day. "There's a lot more people in the stands so feeding off that energy going into the final was a really fun way to do it.

"I knew it was going to be one of the toughest world records to break."

American Katie Grimes finished 4.66 seconds behind McIntosh to claim silver, while bronze-medallist Abbie Wood of Great Britain was 8.66 seconds off the Canadian's time.

WATCH | McIntosh smashes world record in 400m IM final:

Summer McIntosh broke the short course world record in the 400-metre individual medley final, with a time of 4:15.48. It's her third world record and third gold medal at these World Aquatics short course championships in Budapest.

Mary-Sophie Harvey, of Trois-Rivières, Que., finished 10.66 seconds behind her Canadian teammate to earn a fourth-place result.

Toronto's McIntosh set new world-record times earlier this week at the Duna Arena, claiming gold in both the women's 200m butterfly (1:59.32) and in the the women's 400m freestyle (3:50.25).

"It's so validating," McIntosh told CBC Sports reporter Devin Heroux. 

"Nerves are normal before a race, that just means you care. But I really like to channel those nerves and push them into my race. And now that being my sixth world record is pretty crazy. "

McIntosh turns her focus to the 200 backstroke — a new addition to her international program — as action wraps up Sunday.

WATCH | McIntosh takes 6th world record in stride:

The Canadian swimming superstar chatted with CBC's Devin Heroux following her historic gold medal-winning performance in the women's 400m individual medley. Her time of 4:15.48 was her third gold medal and third world record at these World Aquatics short course championships in Budapest.Canada scores relay bronze 

Harvey would eventually win a medal on Saturday as she was part of the Canadian mixed 4x100m medley relay team that claimed bronze.

Swimming the anchor leg, Harvey touched the wall in 3:31.97 to earn a third-place finish with Calgary's Ingrid Wilm, Montreal's Ilya Kharun, and Finlay Knox, from Okotoks, Alta.

The Neutral Athletes B team (3:30.47) won gold, while the United States (3:30.55) took silver.

It was Canada's 13th medal of the championship and fifth for Wilm and Kharun.

"It was nice to prove that I am still a backstroker for Canada," a smiling Wilm told Heroux. 

Canada qualified a team for the relay final thanks to the performance of Knox, Sophie Angus, Blake Tierney, and Penny Oleksiak in the heats.

WATCH | Canada's mixed relay team reaches podium:

The team of Ingrid Wilm, Finlay Knox, Ilya Kharun and Mary-Sophie Harvey finished with a cumulative time of 3:31.97 to reach the podium of the mixed 4x100-metre medley relay event at the World Aquatics short course championships in Budapest. National records fall in prelims

Saturday's preliminary action saw a pair of Canadian records fall.

Tristan Jankovics broke Brian Johns' Canadian record in the men's 400-metre IM. The record - set in 2003 - had been the longest active Canadian record on the books. Jankovics's new national mark of four minutes, 2.01 seconds was third-fastest in qualifying on Saturday.

Knox also broke the Canadian record in the men's 50m breaststroke with a time of 26.30. However, Knox did not advance to the semifinals.

On the women's side, Angus advanced to the semifinals of the women's 50m breaststroke.

WATCH | Full replay coverage of Saturday's preliminary session from Hungary:

Watch the morning session, on the fifth day of competition at the World Aquatics Swimming Championships (25m) in Budapest.