In the event of a tie in a cash tournament, the prize is divided between the tied players:
If there is only 1 prize for the tournament, the prize amount is simply divided evenly between the tied players.
If there are multiple prizes, then the prizes for the tied spots are added together, and the total is then divided between the tied players.
For example, there is a 3-way tie for first place and the 1st, 2nd, and 3rd place prizes are $25, $15, and $8. These prizes would be added together, and the total amount ($48) would then be split between the three tied players. In this example, each player would receive $16 (one-third of the $48 total). If there was a 4th place prize, it would go to whomever has the next highest score below the three tied players, and so on.