fast, powerful, strong
do, swim (the) ~
a swimmer doing the crawl I can't swim butterfly.
strike out in/with
breaststroke/crawlShe struck out with a strong crawl towards the shore.
a length of ~
He did 15 lengths of backstroke every morning.
In competitions the categories are
backstroke, breaststroke, butterfly,
= in which competitors do crawl because it is fastest
). 100 metres, 200 metres, etc. ~ men's, women's ~ compete in ~
competing in the women's 100 metres freestyle
in the ~
He came first in the 200 metres backstroke.