Lucky Willy

Willy's uncle wants to bet $2,000 on the outcome of the baseball world series, a best-of-seven contest. You can't find anyone who will take the bet, but there are people who will take even-odds bets on the individual games. Is there a combination of bets that Willy can place using his uncle's $2,000 so that it comes to a bet on the series, i.e guarantees $4,000 if Willy's uncle's team wins?