Ultimate Frisbee Outing RSVP Website: Disc Counts, a Roster Cap, and a Point Line
An ultimate frisbee outing RSVP has to lock a disc and a roster spot before the pull, because a maybe does not hold a disc.

An ultimate frisbee outing breaks when one field is lined and twenty-two people arrive expecting to pull, or when the roster was built for twenty and three of those names were still a maybe on Friday. Game discs, the seven-player line each side puts on, and the point total you will actually play to are set before the first pull. The host does not paint a second field because a neighbor decided to play after the sheet closed. This is ultimate, seven against seven with end zones and a stall count, not disc golf and not a round net staked in the grass. A maybe does not hold a disc.
You can create an ultimate frisbee outing RSVP that fills the roster you will actually line, records who is on the field and who is only on the sideline, and stops when those spots are full.
Count the players the field can hold
Walk the field before you send the link. Write down whether the lines and both end zones are marked, how many game discs you have, and whether a spare disc is a backup or a second game. If you can run one field, with seven players on each line and three named subs per side, that number is your cap: twenty roster spots, not a crowd on the sideline pretending to be a third team.
An ultimate line is seven players and one disc, not one friend who owns a bag of golf discs. After a catch, the thrower has to set a pivot. The defense counts a stall, and a drop or a throw out of bounds is a turnover. Ask whether a person who will not play can stand on the sideline, and whether that person still counts toward the number the park allows on the grass. Pick one rule and write it on the page. Guests stay off the end zone. They do not claim an eighth spot on the line or turn a stack into a crowd.
Ask the last time you can change the roster without losing the field. If the parks office locks the permit on Wednesday for a Saturday pull, that Wednesday is your lock. Write the finish too: one game disc, seven named players per line, disc down when the permit ends. A second game "if the far field looks empty" is not a plan.
Set a capacity limit on roster spots, not on everyone who was invited to watch. When the twentieth spot is taken, the form should say the outing is full. If the lines are already written, a late player is not in this pull.
The point line is a number, not a vibe
Name the game you will play and stop there. A clear line is the field you lined, a pull to start each point, a stall count of ten, and a game to 15, win by two, hard cap at 17. Disc golf, with a basket, a tee pad, and a personal scorecard, is a different outing. So is spikeball, which needs a round net and four players in a circle.
Put that total on the form as the game you will finish. If you play to 15, that is the line. People who want to "see how the wind feels and then decide" will leave you starting a point you should have called. You need a yes to this disc, this roster spot, and this point line before you write the lines.
Wind, and a phone if the field changes
A roster that looked fine on Tuesday can be wrong when the forecast turns. Name the wind you will still pull in, and the hour you will read it. If the sustained wind is over the number you wrote, or lightning is in the park's rule, the disc stays in the bag. A person who is only watching from a car does not take a roster spot.
Add a weather contingency so the page says what happens if that line is crossed: the outing moves to the backup date, or it is canceled and the field is left empty. Collect an emergency contact for each player, someone who is not on the same line. Write what happens if someone misses the pull: the spot goes to a named sub already on the sideline, or it stays empty and the late car does not walk into a point that has already started.
The moment the lines are locked
The meeting point is the field you lined, not "the park" with no sideline named. Put your phone on the page. A message in the group chat is not a line assignment. You match names to the seven on and the three subs.
Tie the deadline to the permit, the day the roster cannot change. After that, a late yes is a call about a cancellation, not a promise of another field. If you want names ready when a player drops, keep them as standbys and tell them they do not have a spot until you write back. A maybe does not hold a disc.
Export the list the morning you lock: attending or not, line or sub, emergency contact, and phone. An ultimate RSVP is finished when each line has seven named players, the point line is the number you will actually play to, and a late car knows whether they are pulling or turning around.