I had the Lunar Rendevous too and got lucky. The horse was replaced on my ticket by Brassy Boots the favorite after pools closed and I ended up hitting that pick 4 (and I did not have Brassy Boots on my ticket). If you already had Brassy Boots, then you were given the pick 4 twice on Brassy Boots. If you hit the rest of the legs, then you have a winner. If you missed a leg, then your whole ticket is a loser. There are no refunds. If you look at the Belmont charts, it reflects that the winning combination includes tickets on Lunar Rendevous.