The Kenyan Ruth Chepngetich beat the old world record by almost two minutes in the Chicago Marathon in 2:09:56 hours. The time, which was not thought possible, raises doubts that even the winner cannot dispel.
It happened in the last few miles, somewhere between Michigan Avenue and Grant Bark Park, a dog park near the finish line on Columbus Drive: Ruth Chepngetich grimaced. Her hellish pace, it truly seemed to cause her pain.
