On 30 July, she attended the Sudanese embassy in London for an Iftar to break her Ramadan fast with other members of the team. She competed in the second heat of the first round of the women's 50 metre freestyle competition on 3 August. Fadlalla finished in seventh position out of the seven swimmers, with a time of 35.07 seconds, immediately behind Aminata Aboubakar Yacoub from Republic of the Congo (35.64 seconds). Fadlalla failed to qualify for the semi finals, and her Olympic competition ended with her single appearance. She finished overall in 70th position, but was one place faster than fellow African Nafissatou Moussa Adamou from Niger.