sentences:  In the second round, defending champion Ponomaryeva improved to 51.61m, better than her previous record, to take over silver position.In the third round, Olga Fikotová improved on the record with a 52.04m, but her lead and record were short lived as Beglyakova improved it again to 52.54m.In the fourth round, Fikotová improved to 52.28m, but still was in second place.