The Breast Stroke

In Florida there was a swimming contest. The contestants were abrunette-Mindy, a redhead-Cindy, and a blonde-Sandy. The second race was the Breast Stroke...
the order of finish was:The brunette came in first, the redhead second,...
"but wait", where wasthe blonde??? She was still racing!When she got to the finish line...
she said " THEY CHEATED!!"The Judge said "how??" The dumb blonde screamed...
"THEY USED THEIR ARMS!"