She competed at the 2016 Summer Olympics in Rio de Janeiro, in the 200 metres.

[2] Hassan was selected to compete as an "Independent Olympic Athlete," a designation for athletes who are unable to compete under their nation's flag, at the 2014 Youth Olympics held in Nanjing, China.

[7][9] The deal caused controversy when Hassan was selected to compete for South Sudan Olympics over sprinter Mangar Makur Chuot.

The secretary-general of South Sudan's National Olympic Committee, Tong Deran, said he felt "pressure" to pick Hassan due to the advertising contract with Samsung.

Samsung denied placing pressure on the committee and the Court of Arbitration for Sport has dismissed a complaint from Chuot.