The Golfer receives the prize after the tournament ends.
Highest placing professional wins the amateurs prize money.
The tournament committee decides what percentage of the total purse each position will get. A tie for second will each get half of the prize money for 2nd and 3rd place.
Prize money if you are asking about a tournament, in regular play it is called the pot.
Typically a tournament that has guaranteed prize money states that there is a guaranteed prize pool and often go on to say how much. For example: Guaranteed prize pool of $250,000. This means no matter what they take in for buyins, this much will be reserved for the prize money. The rest will go to costs of hosting the tournament be online or in a casino.
A professional Golfer is a very good golfer that does not follow the USGA and R&A Rules of Amateur Status. Basically, that is a golfer that accepts prize money at tournaments(ie Tiger Woods).
they already give it to you
amateurs can only receive $750 cash as a prize, and typically this is given in the form of an in-kind prize, something worth $750, or pro-shop credit for that amount. any left over money would then be allocated however the tournament committee decides.