Calculated Pacing: An Interview with Sarah Webster on Her 24-Hour World Record
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Calculated Pacing: An Interview with Sarah Webster on Her 24-Hour World Record
"When Great Britain's Sarah Webster surpassed the women's 24-hour world record at the 2025 IAU 24-Hour World Championships in Albi, France, on October 19, she still had a full hour left to race and add mileage to the previous mark. She would end up running 278.622 kilometers (173.127 miles), breaking the previous record held by Japan's Miho Nakata by 8.259 kilometers (5.131 miles), set in 2023."
"In only her second 24-hour race ever, Webster executed exceptional pacing throughout the event. Averaging 5:11 minutes per kilometer (8:19 minutes per mile), including any breaks needed over the 24-hour period, her pace remained incredibly consistent throughout the event, only slowing in the final hours. As she describes in the following interview, it was all part of her plan. Webster, who is 46 years old and not a professional runner."
Sarah Webster covered 278.622 kilometers (173.127 miles) in 24 hours at the 2025 IAU 24-Hour World Championships in Albi, France, exceeding the previous women's record by 8.259 kilometers (5.131 miles). She still had a full hour left to add distance after surpassing the prior mark. In only her second 24-hour race, Webster maintained remarkably even pacing, averaging 5:11 per kilometer (8:19 per mile) including breaks and slowing mainly in the final hours. Webster is 46 years old, not a professional runner, placed third at recent IAU 100k and 50k championships, qualified with 243.393 km in April, and trained around a dislocated shoulder.
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