Gwen Jorgensen, the first U.S. Olympic triathlon champion, will race her second marathon in Chicago on Oct. 7 as she prepares to bid for Tokyo 2020 on the road.
Jorgensen, 32, joins a Chicago Marathon field that includes Jordan Hasay, the second-fastest U.S. female marathoner in history, and world bronze medalist Amy Cragg.
Jorgensen made her marathon debut in New York City on Nov. 6, 2016, two and a half months after winning the Rio Olympic triathlon.
The former University of Wisconsin runner was 14th in 2 hours, 41 minutes, 1 second, more than 16 minutes behind the winner, on limited marathon training.
She said this Chicago Marathon will be her first “real marathon,” according to Runner’s World.
In 2017, Jorgensen gave birth to son Stanley Lemieux and announced her move from triathlon to road running with an ultimate goal of marathon gold in Tokyo.
She returned to racing Feb. 10 and was seventh in the 10,000m at the USA Track and Field Outdoor Championships on June 21.
To make the Tokyo Olympic team, Jorgensen must finish in the top three at the Olympic Trials on Feb. 29, 2020 in Atlanta.
It might be the most difficult U.S. Olympic marathon team to make of all time. The field should include not only Hasay and Cragg, but also possibly Shalane Flanagan and Des Linden, who won the most recent New York City and Boston Marathons, and 10,000m American record holder Molly Huddle.
“I believe I can still do it, and I remind myself of what I was like in my first triathlon year,” Jorgensen, who transitioned from an Ernst & Young accountant to become a pro triathlete in 2010 and 2011, said, according to SI.com. “The second year, I was at the  Olympics.”
The Chicago Marathon men’s field is headlined by four-time Olympic track champion Mo Farah and defending champion and double U.S. Olympic medalist Galen Rupp.
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