See J. M. Henry, ed., Ding's Half Century (1962).
At the 2004 Summer Olympics in Athens, Greece Williams-Darling beat Guevara again. In a head to head final straight, she proved to be more powerful than the Mexican runner who had been hampered with injuries and trained only on a limited basis prior to the Games. Winning the race, she became the Bahamas' first individual Olympic gold medalist.
She also won the gold medal in the 400 meters at 2005 World Championships in Athletics, in a head-to-head race with American 400-meter specialist Sanya Richards. At the 2006 Commonwealth Games, despite being the favourite, she was beaten unexpectedly both in her semi-final and the final by Christine Ohuruogu of England, claiming silver instead.
Williams-Darling took the 2007 season off to nurse a hamstring injury and did not compete during the 2008 season.
For her achievements to date, the Bahamas Government has honoured Tonique by naming a major highway the "Tonique Williams-Darling Highway."