It doesn't matter what the guy organizing the trip tells you, the border officials won't care. It'll be you who tried to cross the border without the passport and not him. The driver's licence, health card, SIN rule vanished I believe last year and now everyone must have a valid passport to enter the United States. Go to a bar with your buddies for now...there will always be opportunities to catch games when you can do it properly! (By the way, first time poster).