Fair Warning:
All the money bet on all 20 horses to show goes into a show pool. Since you have bet both favorites, more money will be bet on your horses to show and therefore the payoff should your horses finish first, second or third will be smaller then the other horses. The best scenario for you will be if a longshot comes in the top three positions in order that less show money total is being paid back to the bettors. In other words. Route for a longshot to finish first, second or third along with your horses. Keep asking as you were the person that caused me to generate this thread as I noticed your comment about not understanding racing in the Derby thread.
All the money bet on all 20 horses to show goes into a show pool. Since you have bet both favorites, more money will be bet on your horses to show and therefore the payoff should your horses finish first, second or third will be smaller then the other horses. The best scenario for you will be if a longshot comes in the top three positions in order that less show money total is being paid back to the bettors. In other words. Route for a longshot to finish first, second or third along with your horses. Keep asking as you were the person that caused me to generate this thread as I noticed your comment about not understanding racing in the Derby thread.