In October, Tweddle competed at the World Championships in Tokyo, Japan. She contributed scores of 15.666 on uneven bars and 14.533 on floor toward the British team's fifth-place finish. This was the team's highest placement ever and qualified a full team for the Olympics. In the floor final, Tweddle placed seventh with a score of 14.500. She said, "The week has been a great success as we achieved our number one aim and we've got the British women's team qualified for 2012 so that's now the focus."