The proverb has been around for a long time, and it is a fact that races have been lost for the want of a shoe. Horses lose shoes in races from time to time. That will always be a part of horse racing. However, racing, qualifying, or even training with a shoe that needed repair to begin with can easily be avoided. A paddock blacksmith is normally available for racing, but sometimes a farrier isn't around when needed. Racing at fairs, training at farms or other off-track facilities are some examples of places that might not have a farrier available when needed.