Megan Eckert Just Ran 636 Miles in 6 Days—and Destroyed the Overall American Record

While many runners take pride in logging 30 to 50 miles per week, Megan Eckert just ran 636.482 miles in six days.Let that sink in for a moment.And she did it by running 1,140 laps around a 0.5581-mile loop at the Füred campground in Balatonfüred, Hungary.Averaging 106 miles per day, the 40-year-old middle school special education and math teacher from Santa Fe, New Mexico, shattered her own women’s six-day world record of 603.155 miles on Wednesday morning while competing in the Global Organization of Multi-Day Ultrarunners (GOMU) 6-Day World Championships.Eckert was the overall winner of the event, beating Norway’s runner-up Simen Holvik, who logged 584.631 miles. Japan’s Tomomi Bitoh finished second in the women’s competition and ninth overall with 498.915 miles.Eckert also achieved the main goal she announced last week, breaking the overall American record of 606.243 miles set by Joe Fejes in 2015. And with 342.124 miles in 72 hours, she also surpassed the women’s three-day world record of 342.091 miles set by American Camille Herron in 2024.She came up only about 14 miles short of the overall six-day world record (650.919 miles) set by Russian ultrarunner Iván Zaborski at the Six Days of France in May 2025.Eckert wore two pairs of the Mount to Coast R1 shoes during the event.Arcadi De Miguel SanzEckert poses with her Mount to Coast R1."It's the longest and the shortest thing," she said immediately after the race. "It's unbelievable. There's so much that goes on, so many ups and downs. But we had a good time! It's going to take a long time to process."Eckert broke up her running into six-hour blocks of time while taking naps and eating meals during moments of downtime. Her husband, Joe Eckert, served as her support crew, while veteran ultrarunner Mike Dobies provided pacing advice.Mileage was recorded based on a chip-based timing system, with sensors at two points on the course to record each loop.The results are all pending until ratified by the International Association of Ultrarunning, but Eckert completed all necessary drug testing and paperwork according to protocol and several certified ultrarunning referees were present during the race.Eckert began running about 10 years ago and ran her first ultradistance race in 2017. She typically averages about 80 to 85 miles per week throughout the year, but she often ramps up to 100 to 120 miles per week in her buildups to bigger races and often run-commutes to her teaching job.Earlier this year, Eckert was the women’s winner of the Vermont 100 (17 hours, 19 minutes) on July 18 and placed third (63 hours, 9 minutes) behind Rachel Entrekin and Courtney Dauwalter (and eighth overall) at the Cocodona 250 in May.Brian Metzler is a Boulder, Colorado, writer and editor whose work has appeared in Runner’s World, Sports Illustrated, ESPN, Outside, Trail Runner, The Chicago Tribune, and Red Bulletin. He’s a former walk-on college middle-distance runner who has transitioned to trail running and pack burro racing in Colorado.