Sanya Richards-Ross is widely-known as the most prolific sub 50-second 400 meter runner in the world. In the last two Olympics, however, she finished a disappointing sixth and third. After the 2008 third-place finish, she couldn't help but let the tears flow, despite an Olympic medal in hand. The race this year was a completely different story. She ran over to her husband in the stands to share this golden moment with the most important person in her life.