https://www.wired.com/story/eliud-kipchoge-is-set-to-break-the-2-hour-marathon-barrier/

On the morning of October 12, Eliud Kipchoge, the best marathoner on Earth, will set off from the Reichsbrücke Bridge in Vienna, Austria, with the goal of traversing 26.2 miles—42.165 kilometers—in less than two hours, almost half a minute faster than any person in history.

A little less than 120 minutes later, the world will know whether he succeeded.