The Anti-Grav Olympics, (TV: The Bells of Saint John) short for Anti-Gravity Olympics, (TV: Tooth and Claw) were a version of the original Earth Olympic Games active in the mid-21st century that involved anti-gravity technology. (TV: The Bells of Saint John)
The Tenth Doctor once said to Rose Tyler he could take her to the first Anti-Gravity Olympics. (TV: Tooth and Claw) The Eleventh Doctor rode an anti-gravity motorbike in the 2074 Anti-Grav Olympics and finished last. (TV: The Bells of Saint John)