The Null Flop, pt. II

In my last article concerning the null flop, I ended with the beginning process of reading a donk bettor's hand on a K99 rainbow flop by first understanding his common flat range. If you have not yet done so, please read the previous article, lest you become hopelessly lost and confused as we move forward.

As it stands, the red-outlined ranked hands below are the only ones we will concern ourselves with, being that your typical villain has little to no desire to draw to a backdoor flush when out of position. Notice how I include all gutshots as hits, as they not only give villain some small chance to improve, they also allow him the ability to bluff even when he misses if some inconsistency in your betting pattern is detected.

Facing off against the widest possible villain flat range (most ranges won't include the weakest suited kings, etc.), we can see that he connects at least weakly with this flop just under 50% of the time. From here, we need to divide the two basic actions of betting and checking and determine which hand ranges are appropriate for each one. Check-raising is excluded from this specific flop because any villain worth his salt will quickly realize that this aggressive action can't possibly be supported by his range when contrasted with our own, i.e. all check-raises look like they are begging for a fold as few hands within our own range can bet/all in.

When villain checks:

Again, if we assume that he is only giving up in those rare instances when he flops a weak ace high, he is likely going into check/call mode with the very top of his range (due to the deck being crippled), as well as AA (occasionally donked, yet rare), some 9x, as well as all Kx hands, which are effectively now all bluff-catchers due to domination concerns.

The presence of the gutshot here might present something of an oddity to experienced players. Notice how I listed the appropriate response as a check/call. Since clearly he does not have the odds to draw to the gutshot, why is this appropriate? It's simple: by check/calling, he gets to realize the full equity of his hand because he can sometimes improve to a pair and win if hero just bets once with his air and then gives up on the turn and river. If you combine that with his ability to bluff if his draw bricks out after hero checks the turn, he now has a very profitable play on his hands.

When villain leads out:

Now we are down to business. Since villain's top pair range is severely weakened by domination concerns, we can scratch this possibility from the list. Though he might also choose to lead with AA, this most radical scenario that fails to include card removal from our own open raise range and a 0% 3-bet frequency on his end makes this a complete non-factor at just over 2%. We can effectively exclude this from his donking range entirely.

Adding all this up means that his donking range is severely polarized between air (50.4%) and trip 9's (12.9%). If we give him full credit for having trip 9's as well as all air when he donks, that means he is almost 4 times as likely to have nothing as he is to have a 9!

So we should raise every donk bet, right? Right?!

WRONG.

Check back in for The Null Flop, pt. III as I walk through every step from the flop to the river!

The Donk Bettor's Delight: The Null Flop, pt. I

Null Flop: a flop that typically has all of these specific characteristics

1) It contains a pair.

2) It contains zero flush draws.

3) There is at least a 3 gap between the pair and the remaining card.

Drier than the Sahara Desert, the null flop, by it's very definition, is extremely difficult to hit in any meaningful way, despite how tight or loose the players involved in the hand are. When I say "meaningful", I mean hit in such a way that it can support 3 streets of legitimate betting action vs. a thinking player and creates this massive black hole of null ranges for both opponents in a heads up pot. Here are three examples:

• Tc Td 4h
• As 5h 5d
• Kh 9s 9c

Many open-raisers are of the opinion that you can bet all your air with immunity on these types of flops, believing that they either tend to hit your opponent very hard or not at all.

And they would be right unless, of course, that particular villain is thinking precisely the same way you are and decides to take the lead in the betting with a donk bet, which is typically 2bb in a 20bb CAP setting. Perhaps it would be helpful to stop thinking in terms of the derogatory term "donk bet" and begin thinking of it more as a "reversed c-bet".

Before analyzing any of these specific flops, you must first begin thinking in terms of ranges. If you grew up in or around Russia, where apparently the only type of poker that they have been exposed to is played (coincidentally?) with exactly 20 big blinds at all times, your BB flat range vs. a standard button open of 33.3% will look something like this:

The specifics of the range are not nearly as important as noticing what this range almost never consists of: strong aces and small-middle pairs. There is a premium placed on suitedness and connectedness, but very rarely will villain sneak up on you with complete trash, although they will show up with the occasional KK or AA. Essentially, you are looking at a range of hands that can flop or draw well but tend to be undervalued in 3-bet situations even if they do still show a profit when shoved, like Q9s or KJo.

Now, let's look at how this flat range connects with Kh 9s 9c by means of Flopzilla, assuming that all hands will be distributed in equal proportions (they won't, of course):

And now villain leads into you...what does this mean?? Check back early next week to find out on the The Null Flop, pt. II!

Introduction to Donk Bet Counter-Strategies

Donk bet: the act of defending vs. a raise when out of position after limping or calling from the blinds and then leading into the raiser with a bet.

For these next several articles, I am going to explore the psychology and methods of donking that you will encounter. Rather than giving the solution (which I have), I first want to lay out the criteria for understanding why players are flocking to this increasingly important move in the 20bb CAP player's arsenal, as I feel that only if players understand the "why" first will they then be able to understand the "how" of defending against it.

I plan on doing this by introducing two special kinds of flops and their variants: the null flop and the "as yet to be cleverly named" other flop :)