How Marathon Organizers Respond to Cheating

For those following the road running world, combating course-cutting and race irregularities might seem like an obvious priority. However, how race directors around the world respond when fraud is exposed varies widely—ranging from naive surprise to rigorous technological enforcement and outright indifference.

During an appearance on the Café com Tri podcast, Roberto Abrahao, creator of the Um Golpe por Milha project, explained that many organizations fail to see cheating as an initial risk because they think like honest organizers rather than fraudsters. When presenting data to the Prague Marathon team, for instance, organizers were fascinated and admitted they never even imagined participants would cut the course along the route.

From Naivety to Fortifying the Course

By contrast, major world events have tackled the issue head-on for years. Roberto cited the Chicago Marathon as one of the races that takes monitoring seriously, placing timing mats on virtually every turn to deter shortcuts and disqualifying anyone who bypasses the official route.

One traditionally vulnerable spot in Chicago was the section after kilometer 35, where an out-and-back layout made it easy for runners to cut across side streets and shave miles off the race. To close the loophole, the race began placing successive checkpoints at short intervals—such as at km 35, km 37.1, and km 38.4—tracking each competitor's exact split.