50 miles is an enormous test of stamina in both ultracycling and running. When cycling, it is known as being “half century,” but in the realm of running, as a difficult long-distance event. Both require strong physical fitness, pace control, nourishment, as well as steely determination.
For cyclists, 50 miles is typically just short of riding an entire century (100 miles). It is approximately 2.5 to 4 hours of consistent riding with lots of water, and great pacing. 50 miles is the typical goal for group rides, gran fondos, training programs, as well as for triathletes or cyclists training for longer journeys. For runners, 50 miles for an ultramarathon is significantly tougher, from 7 to over 14 hours depending on the terrain and conditions. These races usually take place on trails or hills, pushing the boundaries of endurance, power, speed, and will. Runners must have great meal planning, training of several hours, as well as experience in dealing with fatigue. 50 miles is no small feat, no matter on two wheels or on two feet.