Chicago Marathon – 7 Disqualified, 40 More Likely Cut The Course after 35K Checkpoint

November 22, 2022

Almost immediately following the Chicago Marathon, I began to receive emails about runners with suspicious splits. In particular I received reports of suspicious splits between 35k and 40k. Looking at the map, it is easy to see how runners could cut over 2 miles off the course by skipping the right turn on Michigan Avenue, and instead, turn left on Indiana Avenue. Marathon Investigation