Metrication in the United States traditional mile-based lengths. In the Olympics, athletes run 1500 meters, not 1600 meters. Running races in the U.S. are usually run in metric distances (e.g., the 100 metres dash or the 5K run), although the mile distance remains popular. But even 5 and 10 kilometer races most often have mile markers on the course, and no kilometer markers. Long-distance races are often measured in kilometers, although exceptions exist (generally 10 mile races). The marathon is referred to as a 26.219-mile race (the official marathon standard distance originally being in English units — 26 miles, 385 yards) rather than 42.195 km.
Walt Disney World Marathon because of USA Track & Field lightning policy, anticipated lightning and a lack of necessary shelter on course should it be required during the race. All registered half marathon runners received their half marathon medals. In November 2012, Glass Slipper Concierge travel specialist and avid runner Megan Biller began publishing a yearly "Runner's Guide to Walt Disney World" entitled "Magical Miles" through runWDW, LLC, "offering advice on resorts, restaurants, race registration, packing tips, spectator information, training, race day information and much more." In January 2016, Matthew Dobson, the first American male to win the Marathon, self-published a book titled "How