In the end , Ritter 's third - round effort of 18.34 m proved too much for the US thrower .
Ritter extended Ritter 's lead in the following round with a personal best put of 18.53 m .
In the end , Ritter 's third - round effort of 18.34 m proved too much for the US thrower and she extended her lead in the following round with a personal best put of 18.53 m .