“Our tests indicate that the tennis players are not quite playing randomly: they switch
their serves from left to right and vice versa somewhat too often to be consistent with
random play. This is consistent with extensive experimental research in psychology and
economics which indicates that people who are attempting to behave truly randomly
tend to ‘‘switch too often.’”

Maybe RPC competitors are just too smart to produce non-random strings. I really wish someone had been recording all the throws – not only could the “over-switching” hypothesis have been evaluated, but there’s probably all sorts of interesting demographic predictors of strategy.

is there a bela karoli of the rps world? we should hire him to train us.

Also, of note–the guy who finished just under the money was employing the all-paper strategy. Guess it’s no good.