Which Poker Ranges Should You Learn First? The Priority Order

This is the question that stops most players before they even start: there are hundreds of preflop situations, so which one deserves your ten minutes tomorrow morning?

The answer doesn't depend on your level but on a single criterion: frequency × impact. A range you meet twenty times a session deserves your time before one you run into once a month, even if the second one is more "interesting". Here's the priority order that follows.

The principle: start with what keeps coming back

Preflop is the most repetitive street in poker: you play it on 100% of hands. It's also where a mistake costs you most often, because it contaminates every following street — entering a pot with a hand that shouldn't be there creates postflop problems no later decision fully undoes.

Second filter: the size of the pot at stake. A mistake in a 3-bet range costs more than a mistake limping the SB, because the pot is already bigger when you get it wrong.

Third filter, often forgotten: how forgiving the situation is. Some ranges are wide and tolerant (BTN open); others are tight and punish immediately (UTG at a 9-handed table). At equal frequency, start with the forgiving ones: you build confidence and landmarks before tackling the hard stuff.

The universal order, in six tiers

Whatever your format, the architecture is the same. What changes is your entry point (see below).

1. Your opening ranges (RFI), position by position. This is the foundation. Until you know what to open on the BTN, the CO and the SB, everything else is built on sand. Start with late positions — wider, more frequent, more profitable — then work back towards UTG.

2. BB defence against an open. After your own opens, this is the most frequent situation of all: you're in the BB one hand in six (six-max) and you already have money in the pot. It's also where beginners bleed most, by folding far too much.

3. 3-betting, and above all your response to a 3-bet. Two ranges for the price of one, and the second matters more than the first: knowing what to do when you get 3-bet (fold / call / 4-bet) saves you the most expensive pots in your game.

4. Short-stack push/fold. A priority as soon as you play short-stacked formats (see below). In a 100bb cash game it can wait.

5. Blind vs blind. SB against BB: frequent, badly played by most of the field, therefore profitable — but technically delicate, hence its late slot.

6. Multiway spots and the squeeze. Less frequent, more opponent-dependent. Keep them for when the rest runs on autopilot.

Your entry point by format

6-max cash game (100bb)

Start with the BTN open, then the CO open, then BB defence against a BTN open. Those three already cover a huge share of the hands you play. Push/fold will almost never come up: skip tier 4.

MTT

Your stack depth changes throughout the tournament, so you need two sets of ranges: deep ranges (early stages, close to cash game) and short ones. Prioritise the 15-25bb ranges, because that's where most of your ROI is decided: the bubble, final tables and the majority of your eliminations. Then add ICM, which distorts those ranges late in a tournament.

Spin & Go / short Sit & Go

Flip the order entirely: start with heads-up and 3-handed Nash push/fold. At 10bb or less, your preflop decisions are your strategy — postflop becomes incidental. It's the format where learning ranges pays off fastest, because a small number of ranges covers almost your entire game.

How many at a time?

One new range at a time, and never two neighbouring ranges on the same day. The CO open is almost entirely contained within the BTN open: learning them together manufactures confusion on the borderline hands — the interference effect, detailed in why you keep forgetting your ranges.

The right rhythm: one new range every two or three days, while the previous ones come back for review. That's how you grow a repertoire without ever restarting from scratch.

The "I'll deal with it later" trap

Plenty of players learn their opens and then stop — because that's the satisfying part. The problem is that playing perfect opens without knowing how to answer a 3-bet doesn't make you money: it just makes you enter cleanly into pots you then play badly.

A range is only worth something connected to the others. The first real milestone isn't "I know my opens", it's covering one complete situation: I open, I get 3-bet, I know what to do. Aim for that on a single position first, rather than opens everywhere and nothing behind them.

In short

Late opens → BB defence → 3-bet and response to 3-bet → the rest. Except in short-stack formats, where push/fold jumps to the front. One range at a time, never two neighbours on the same day, and one situation covered end to end before broadening. For the learning method itself, see the memorizing your ranges guide.