At the 2012 London Olympics, George won her 400 m heat in 51.24s but could only manage a fifth-place finish in her semifinal and missed out in the final. She returned for the 4 × 400 m heats and later ran the third leg for the Nigerian team in the final. The team who initially finished in seventh place were disqualified for a lane infringement during the change over between Odumosu and George.