Hand selection is probably the single most important factor in Omaha H/L winning formula.  You should choose hands that have the potential to have the high and the low.  For example, the best hand is A-A-2-3, because of the potential to form sets if an A flops or to form the nut low if a 4-, 3-, 2, or A- low flops.  But how to select a hand when you are just playing run-of-the-mill cards, like A-K-J-3?  All of these sub-standard hands should be discarded.  You should only play the hands that have potential to be the nuts.  With A-K-J-3, even if it is double-suited, what can you hope for?  A low might give you the second-best low in a multi-way pot and end up costing you a HUGE amount of poker chips and consequently, lots of money. 

Thus, it is best to stay away from most of these hands.  You should confine you hand selection mostly to low cards, like A, 2, 3, 4 etc.  In fact, one Omaha H/L pundit, John "Miami" Cernuto, has opined that the secret to successful Omaha H/L selection is "three cards to a wheel."  This underscored the importance of chasing the low side of the pot, rather than pinning your hopes on some mirage of flopping the best high hand with A-K -10 or some such combination of cards.  Thus, we arrive at the crystal of wisdom: "Never leave home without an Ace."  An ace has great two-way potential as the top high card and as the winning wheel card if a 2 flops or some other wheel card.  Even better is an ace paired with a 2 or a 3, because then you have a chance at making the nut low if for example, a 2 flops and you have A -3. 

Another crucial factor is to have your hand be double-suited, preferably, or at least single suited.  With this potential, for example, with a suited A- 3, you have the chance to make the nut low and the nut high with a winning flush.  Even better if your hand is double-suited, because then you have the chance to make two flushes.  Another inadvisable thing to do is to chase the flop with four high cards, such as A-K-K-8 or some such hand, because you will very rarely flop the nuts with a high, and generally you will have no low at all, so you are effectively chasing half the pot with a negligible chance of success.  Thus, it is always advisable to have redraws to the low, and the best way to combine high features with low features is to have you hand be double suited, preferably A-2 XX. 

One other important subtlety in hand selection first originated by Omaha H/L aficionado and expert poker player Mike Matusow is to read players for their hand selection based on betting.  For example, if a player double bets it, then the player behind him three-bets it, and a fourth player four-bets it, you can probably surmise that they have all the Aces out of the deck, as well as a lot of the wheel cards, and thus you would be advised to play a high hand because the deck is rich in high cards.  Thus, with all of the Aces and wheels gone, the deck will mostly flop three high cards, and there may be no qualifying low, and you may end up scooping a huge pot with your high-only hand.  This is a sophisticated tournament reading strategy invented by Mike Matusow and referenced in his article "You Can’t Really Do These Kinds of Things in Hold’em" from the FullTilt.com Players Archive.  Thus, the above strategies should turn the average Omaha HL player into a terrific one in no time.

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