Summarize this article:

To throw a Frisbee correctly, place your index and middle finger under disk, close to the lip. Curl the two fingers to get a firm grip, and twist your body to your throwing hand side. Take a step forward with your dominant foot, and untwist your body. Once you have faced forward, flick your wrist, release the disc, and point where you want the disc to go. Keep the Frisbee parallel to the ground. As you advance, you can develop more complex throwing motions into your game with some practice. This is To "hammer throw," put your index and middle fingers under the disk and put your thumb on top. Do not curl your index and middle fingers. Like you are throwing any ball, raise the disk over your head, and have the disk angled towards your head. Make sure you have about a 50-55 degree angle on the disk. Still keeping the angle, throw the disk forward and upward. The disk should fly perpendicular to the ground for a couple seconds and flip upside down to float softly to the ground. This throw is a little tricky to catch, but can be useful under heavy defense. Try a sidearm toss. Place your index and middle fingers under the disk, and curl them against the lip of the disk. Place your thumb on top. Twist your body slightly towards the disk, and flick your wrist to release the disk. Make sure you twist your hand towards your body when you throw to put enough spin the disk to fly. This throw is very useful when you are being defended by an opposing player, but takes practice. The difference between teams that are good at Ultimate Frisbee and teams that are just playing is in the speed of the passes. Practice making quick, crisp, accurate passes with your teammates and moving quickly down the field to keep the defense off balance. Though the player in possession has 10 seconds to hold onto the Frisbee, it should be a rarity that a player holds the Frisbee for longer than five. Don't worry about making "hail mary" passes that launch all the way down the field. These types of passes are low-probability and will more often result in picks, than in long point opportunities. Throwing a pass directly to a stationary player is a good way of getting your Frisbee toss picked off by the defense and losing possession. Instead, practice leading your teammates, passing into open space, and allowing your teammates to outrun the defense and run down the Frisbee. This is a more effective technique of moving possession down the field and gathering territory. Unless you see a great opportunity, you don't need to charge down the field as soon as you grab the Frisbee. Focus on making high-probability passes and controlling the possession of the disc, not in scoring immediately. If you've got the Frisbee, possess it. Make crisp and accurate passes and move down the field gradually, gaining territory. Like in soccer, you can move in any direction when you've got possession of the disc. If you need to make a few passes backward to regroup and control the field, do so. You generally want to be going forward and not back, but it can be a good way of strategizing. When you're not in possession of the Frisbee, you need to be constantly moving into open space, looking to get open. Spread out. Make cuts, juke out your defenders, and hustle, hustle, hustle. Learn to make crossing patterns in your cuts, taking short routes across the path of the player in possession of the disc, rather than moving parallel. This will result in higher probability passes and help you control the disc. It gives the player in possession more options. Like in basketball, soccer, or almost any team sport, it's important to have a few plays drawn up, especially when you get into scoring pattern. Whether you want to give them fancy names ("Flying V on one, on one!") or just run them on the down-low, moving the offense in pre-drawn patterns is a good way to juke out the defense and stay ahead of the game. If the player in possession knows what kind of route you're likely to run, the passes can go to open space and allow players to run them down. When you're playing defense, the best way to mark up is usually "man-to-man," by marking up on one player for the whole game and sticking to them like glue. Defense should be played much as a combination of basketball and football, using your arms to disrupt the shots of the player you're guarding and trying to pick off passes.  Defenders need to give the offensive player a bubble, at least a yard around the point of possession. You can't get in close enough to physically touch the player in possession of the disc. Remember: no contact. When you're running with players on defense, try to watch their hips instead of watching for the Frisbee. Stay between them and the player in possession of the disc, to give yourself the best chance of picking one off.
Practice making good throws before you try to play Ultimate. Learn more advanced throws as you improve your game. Make quick passes. Let your quick teammates run onto the passes. Don't rush it. Move to open space. Practice pattern routes. Mark up player to player on defense.