This year's edition of the race that started the backyard ultramarathon craze, the 2025 Big Dog's Backyard Ultra, saw Sarah Perry of the U.K. set a new women's record of 95 "yards," totaling 395.8 miles (637.0 kilometers). Perry exceeded the prior women's record of 87 yards, or 362 miles (583.3 kilometers), which was set by Megan Eckert (U.S.) at last year's Big Dog's Backyard Ultra, by eight laps, or 33.3 miles (53.6 kilometers).