I assume the payout is at the end of the season correct? If so there really isn't a hedge here because if you bet the cubs and lose you are out cash now and are waiting 5 months to get your cash back out of the pool. You also have no idea how much of the 17 dimes are coming back to you. Today's match-up is the best chance for the Cubs to win in a while, I'd sit back and hate on them for the day.
Good luck- hope they lose for you.