Galen Rupp and Jordan Hasay will race the Chicago Marathon on Oct. 8 rather than the Berlin or New York City Marathons this fall.
Rupp and Hasay finished second and third, respectively, in the Boston Marathon on April 17. It marked the best U.S. combined male and female finishes since 1985.
Chicago is expected to mark Rupp’s move to full-time marathoning after he failed to make the U.S. team for August’s world championships in the 10,000m.
Rupp, 31, has a sterling early marathon record. He debuted by winning the Olympic Trials on Feb.