Mikhnevich managed 20.28 in the third round .
By then Vili had already had a second best of 20.40 , and she went on to throw 20.52 in the fifth round .
Mikhnevich managed 20.28 in the third round , but by then Vili had already had a second best of 20.40 , and she went on to throw 20.52 in the fifth round .