The winner of the World Series is the first team to win four games, so the maximum number of games that could be played is 7.

Sean wants to place a $100 bet (even money) on this team to win the whole series. A bookie says he will not take bets on the whole series, but would be willing to let Sean bet on each individual game.

Is there a betting strategy that Sean could put in place to replicate his $100?