The newest way to toss a keg combines techniques of both the discus and hammer throw. This updated form of keg tossing does not require the athlete to toss the keg high, rather they are required to try to throw it the farthest distance. Athletes are given three attempts to throw the keg and the winner is determined by measuring the distance tossed. The one who throws the keg the furthest wins.
The basic technique for tossing the keg involves swinging the keg in a pendulum like manner and releasing the keg when it is at its summit. A more experienced athlete uses a spin method similar to a hammer throw. The keg is again released when it is at its summit, allowing for the maximum distance. The event of keg tossing is also in the World’s Strongest Man competition. Men toss kegs that get increasingly heavier over a tall wall.
It's very easy to obtain an empty keg. Go to a liquor store, buy a keg, invite some friends over, drink all the beer, wake up in the morning with a hangover, a strange guy sleeping in your bed, and an empty keg! Or you can just go to a liquor store and ask if you can have one of their empty kegs. Most will just look at you funny and give you the keg. Some may charge you a couple of bucks for them. It's that simple.