Olympic marathon preview: Kipchoge looks to make history

Will the GOAT come through with another gold medal peformance?

Galen Rupp sets American 10-mile record, wins half-marathon in 1:00:22

Rupp fell short of the U.S. half-marathon record, but he still went home with a race win and the national best over 10 miles

Galen Rupp to run surprise half-marathon on Friday

Rupp and Japanese marathon record-holder Suguru Osako will headline the Eugene, Ore., race