Tailgate Party RSVP Website: Lot Passes, Coolers, and Seats in a Real Car
A tailgate RSVP has to match people to lot passes and cars, because the stadium sells parking spaces, not a headcount, and food in the trunk does not get a guest past the gate.

A tailgate fails at the lot gate, not at the cooler. You can own enough chairs for twenty people and still only have two parking passes. The stadium does not care that your group text has been active since Tuesday. The person in the booth counts vehicles and passes. If your guests are meeting you "by the statue" without a seat in a car that is already on the list, they are not at the tailgate. They are outside.
You can create a tailgate RSVP that starts with cars and passes, then adds people into those cars. A yes that does not name a ride is not a yes.
The pass count is the guest list
Before you invite anyone, write down how many vehicles you can park, which lot, and what the pass allows. Some lots sell one vehicle and do not care how many people climb out of it, up to the number of seatbelts. Some sell a space that cannot take an oversized van. Some will not let you add a car the morning of the game at any price. Read the lot rules and put the vehicle cap on the RSVP.
If you have two passes, you have two cars. Everyone else needs a seat in one of those cars, a different pass they already own, or a no. Do not tell people to "find parking nearby" unless you have named the lot, the walk, and the price, and you are willing to start without them. The parking note on this kind of RSVP is the event, not a footer under the address.
Ask for the vehicle that will actually enter the lot: driver name, plate if the pass is tied to it, and how many people that car can carry after the cooler, the grill, and the chairs are in it. A sedan that fits five on Monday fits three on game day once the hatch is full. Count seats after cargo, not before.
Put every person in a car
Use the form to split the list:
Driving a car that has a pass — they are one of the vehicles you already counted
Riding in a named car — driver name required, and that driver has a seat left
Not coming to the lot — they can still be on a separate watch-party list if you are running one
A ride question has to end with a named driver, not "I can Uber." Rideshares are often blocked at the lot entrance or dropped on a road you cannot grill on. If your lot allows a drop-off, say where, and say that person still counts against whatever headcount the space has. If it does not, say no drop-offs.
Publish the lot arrival time. Getting in thirty minutes before kickoff can mean you do not get in at all, because the lot closes to new vehicles. People who are meeting the car at a park-and-ride need that clock time more than they need the matchup. If someone is late, the car should not circle. Say whether you will wait, and for how long.
This is not the living-room watch party
Friends who want the game and do not have a seat in a car are not tailgate guests. Send them to a living-room watch party if you are hosting one, with its own cap for the couch and the television. Do not put both events on one yes button. You will buy food for people who are across town, and you will have an empty chair in a car you could have filled.
Coolers, grills, and the rules that get you thrown out
Ask who is bringing the grill, the fuel, the table, and the cooler, and cap the food at the number of people assigned to cars. A tray of burgers for eighteen is waste if eleven people fit in the two vehicles. It is also a space problem. The lot gives you the footprint of your parking spaces, not a pavilion.
Put the lot's banned items on the RSVP: glass, open flames, kegs, tents over a certain size, saving spaces with empty chairs, music past a volume. You are the name on the pass. A guest who "didn't see the email" can still get the car ejected. If you are not serving alcohol, say so. If you are, say who is driving home sober. The driver of each car should be marked on the form, and that person should not be the one you are counting on to split a fifth.
Kids change the plan. A lot is not a backyard. If children are coming, they need a seat in a specific car and an adult in that same car, and you should say whether you have a reason for them to be in a parking lot for three hours. If you do not, say the tailgate is adults.
Close the list when the passes are final, which is often days before the game and sometimes the moment you bought them. A late yes only works if a seat opened up. Export driver, plate or pass, passengers by name, and who is bringing the grill. If passengers outnumber seats after cargo, someone is not in the lot, and they should hear that before they buy a jersey for the day.
A tailgate RSVP is finished when every person is in a car the gate will accept, every car has a pass, and the food fits the people who will actually be standing in that space at kickoff. The score will take care of itself.