At an age some runners are slowing down, Burt Carlson was just getting started.
Carlson ran his first marathon at 57. Over the next 30 years, he averaged 10 marathons a year. He also ran numerous ultramarathons — races of up to 100 kilometers (62.1 miles) in distance — and competed in 50-mile road races and 24-hour races.
In all, Carlson ran 324 marathons and ultramarathons. He ran in nearly 100 marathons after his 81st birthday.
"Minnesota has a long, rich history of long-distance runners," said Minnesota native Carrie Tollefson, a 13-time state high school champion, five-time NCAA champion and an Olympian in 2004. "Burt was very extraordinary.
"I last saw him at the Reggae Marathon in Jamaica in 2010. He was 85 and ran the half-marathon. It was all about the run for him. He brought joy and love to the running community with the stories he'd tell. He'd keep people alive."
Carlson, of Mound, died on March 10. He was 94.
Tollefson said it was always fun to hear him talk. "His story resonated with people because he was older when he took up running," she said.
Carlson was born in Minneapolis on Sept. 26, 1925, to Bennett and Myrtle Carlson. He was raised in Minneapolis and attended Minneapolis Central High School. He graduated from the University of Minnesota with a degree in mechanical engineering.