But then she suffered in the semifinals the injury pitch .
Christel Frese won her first run with 52.89 s and was then able to knock out Mexico 's Olympic champion Colette Besson as fourth in the 53.01 s in the interlude .
Then Christel Frese suffered in the semifinals the injury pitch .
Christel Frese won her first run with 52.89 s and was then able to knock out Mexico 's Olympic champion Colette Besson as fourth in the 53.01 s in the interlude .