Susannah Gill, 34, of London has smashed the women’s world record in the World Marathon Challenge, which consists of running seven marathons on seven continents in seven days.

Gill in Antartica: Photo Courtesy of Susannah Gill

Gill completed the challenge in 24 hours, 19 minutes and nine seconds, beating the previous record by more than three hours. The runner averaged three hours and 28 minutes for each marathon. Mike Wardian of Arlington, VA won the men’s race and holds the world record from 2017 with a time of 2:45.

Gill in Miami: Photo Courtesy of Susannah Gill

To compete in the World Marathon Challenge, competitors pay an entry fee of 37,500 euros (approximately $42,508) and are flown around the world on chartered planes to complete each marathon. Marathons were run in Cape Town, Perth, Dubai, Madrid, Santiago and Miami over six days.

Gill in Cape Town: Photo Courtesy of Susannah Gill