Why is a flush ranked higher than a straight even though it appears it should be the opposite? Drawing to an open-ended straight has 8 outs and a flush 9 outs. It breaks the general “Rule of Two” (8 x 2 = 16 outs and 9 x 2 = 18 outs). First, the 2x rule is correct with 4-cards on the board, however getting there is a much different situation. AI had the answer. The math analysis equates 10,200 combinations that make a straight possible. There are 5,108 possible for a flush. The statistical conclusion is that it is twice as hard to arrive at a 4-card flush draw at the river, thus the higher hand ranking.
