Two years ago, Amy Dixon was in a down spiral after a series of eye operations to stem a rapid decline in her already reduced vision left her 45 pounds overweight, lacking motivation and understandably depressed. Refusing to be discouraged by a broken foot, she embarked on an exercise regimen that included water running and spin cycling that whittled away the weight and led her to a fortuitous meeting with Team Red, White and Blue guide Caroline Gaynor, who encouraged her to try a triathlon.