In 1977, Wendell T. Robie (1895-1984), the president of the Western States Trail Foundation and the director of the Western States Trail Ride (Tevis Cup), decided that it was time to add a runner division to his famous Ride. He had previously helped seven soldiers successfully complete the course on foot in 1972 (See Forgotten First Finishers), the first to do so, and had been pleased that Gordy Ainsleigh had been the first to finish the trail in under 24-hours in 1974. (See Episode 66). In addition, dozens of people had backpacked the trail since then, and a couple others had tried to run the course solo during the Ride. Robie believed it was time to organize a foot race on "his trail" for the first time.

This first Western States 100 in 1977 was hastily organized by riders, not runners. There was no consultation with the existing well-established ultrarunning sport at that time. Practices were put in place that mostly mirrored the endurance horse sport such as mandatory medical checks. The event would be held with nearly 200 riders and horses also competing on the course at the same time as the runners. The day would turn out to be perhaps the hottest ever for the historic race. The risks were extremely high for this small rookie running race staff and some rather naïve runners. Who were the runners who turned out for this historic first race? Did they have the experience to finish or just survive?