Walkers are not so locked in on miles. They focus more on time, on hours. Canada said walkers and runners are susceptible to different injuries. The most common in walkers is something called shin splints. That's pain in the shin area.
Runners can also get it.
During the marathon, there are water, nutrition and first-aid stops along the course, usually two to three miles apart. A runner may get to a stop in 10 minutes, but for a walker going 15 to 20 miles an hour, it might be an hour before they get to a station. So they should carry fanny packs with their own water bottle, bandages and nutrition. Associated Press content is Copyrighted by The Associated Press.