 On September 11, her 21st birthday, she broke her own Asian record, for the third time that year, clocking a world-leading time of 49.81 seconds.On September 12, she set a personal best of 22.95 seconds in the 200 m. On September 13, Ma anchored the Hebei's 4 x 400 m relay team featuring An Xiaohong, Cao Chunying and Bai Xiaoyun to break the Asian record in 3