1. I make an A-high straight on the turn. The board has not paired; there is two to the flush however.

What are the chances that the river will A. Flush B. pair?


2. Passive/weak table, PL omaha high. Only person in 20 mins that has raised the bb preflop is myself. In general, Should I lower my limping standards, keep them the same, or tighten up?

Question 1:

There are 44 unseen cards and 10 of them pair the board, so the chances are 10/44 or odds of 3.4:1.

There are 11 unseen suited cards, but two of them also pair the board, so the odds of a flush hitting without the board pairing are 9/44, so very slightly less than the odds of the board pairing.

You also need to consider the chance of another straight card coming, which could result in a split pot.

Question 2:

In such cases you can probably afford to limp more marginal hands from out of position, but if there are many players to every flop, make sure that the hands you play have potential to make the nuts.