What is a carryover pool?

Many tracks offer various types of exotic wagers (Pick 6, Pick 5 Super High 5, Twin Trifecta or Tri-super) which challenge the bettor to pick the winners of consecutive races or the order of finishes in one or more races. Because of the difficulty of successfully selecting the winners of 5 or 6 consecutive races, the top 5 finishers in a single race or the top 3 or 4 finishers on multiple races, and because of the large number of betting interests, it is common for there to be no winning bet on the exotic wager. When this happens, all or a portion of the pool carries over to the following program, and continues to carry over until it is won or until there is a “Force Out”. This is called the “Carryover Pool,” and it can grow to large sums.