For I-Day, I made reservations at the Academy Hotel in April to make sure we had a room on 6/23. We went to the Rockies game the night before and got to the hotel around 10 PM. When I got there they told me they sold my room. They did make a reservation for us at another hotel about 20 miles away. I was not to keen on this but had to live with it. If you know you are definitely going to be there, I would recommend paying for it in advance so they don't sell your room.