In the individual medley races, there are a lot of transitions between
strokes: fly to back, back to breast, breast to free where each swimmer
could either gain or lose time on the opponents. Usually the most
complex turn is the one from backstroke to breaststroke and in the
history of swimming this turn has evolved into a very fast and
sophisticated movement sequence which is quite tricky to master for a
lot of us and even very good swimmers take a bit of coordination and
time to learn it. Here is a run down of the turn evolution from the time
it was required to touch the wall on swimmer's back to execute the
turn.
