Ultimate is played between not one but two teams of seven players for a large rectangular pitch. A line drawn along the pitch at either conclude creates two "endzones" (like within American Football). These will be the goal-scoring areas. A goal is scored whenever a team completes a pass into a player standing (or more often than not running) in the endzone they are attacking.
Players cannot run with all the disc. When you obtain disc you must come to a stop and aim to throw it to another player (a bit for instance netball). By passing from player to player, the offence attempts to your workplace the disc up the pitch into the endzone they are approaching. If the disc sinks into the ground or is actually intercepted or knocked down because of the other team, then the opposition takes possession (a change of possession is named a "turnover", like United states Football). Possession also changes whether a receiver is outside that playing area when they catches it.
The defending team attempts to halt the team with that disc from making progress upfield by marking these folks (as in soccer as well as basketball). The theory could be that the offence won't want to pass into a player who is currently being marked closely, as it's gonna result in an interception. So it boils to the offence players trying to get free of their markers to get a pass, while the defence makes every effort to stay with them in that hope of forcing any turnover.
Ultimate is mainly non-contact; any contact between players might be declared a foul. There's quite a few other minor violations, nonetheless that's the big one particular.
Ultimate is unique as it is refereed because of the players themselves, even from World Championship level, reported by a code of conduct generally known as "the Spirit of that Game". This places the burden for fair play to the players themselves. In which respect, playing Ultimate is often a completely different experience to playing other sports. And contrary to popular belief, Ultimate's system of self-refereeing succeeds. Beautifully.