The standard advice for beating a maniac fits on an index card. Tighten up. Let him bluff into you. Value bet thinner than usual. Don’t try to bluff someone who never folds. All of it is true, and all of it is about as useful as “buy low, sell high.”
The trouble is that the advice assumes the maniac is a normal player with the aggression dial cranked to ten. That describes most of the players who get called maniacs. It does not describe the rare one who is actually playing random poker, and the difference between those two opponents is the difference between a free lunch and a long, ugly night.
So before you adjust anything, you need to know which one is sitting there. The test is cheap. Watch whether his actions correlate with his cards at all. A loose-aggressive regular bets a lot, but his sizes mean something, he checks back some flops, and he occasionally folds to a raise. True chaos does none of that. His bet on the turn tells you nothing because it would have happened with any two cards, and that single fact breaks more of your strategy than you’d think.
The two players everybody calls a maniac, and why only one is dangerous
Structured aggression is readable. It’s wide, it’s uncomfortable, it puts you in horrible spots with second pair, but it has shape. A loose-aggressive opponent raising 40 percent of hands still has a range, and ranges can be attacked.
Random aggression has no shape. If a player bets 80 percent of flops and 80 percent of turns regardless of what he holds, then his betting range on the turn is simply the hands he started with, filtered by nothing. Your usual question is “what does this bet represent?” The honest answer is “everything,” and that answer is not useless. It’s enormously useful. It just points somewhere unfamiliar.
Worth noting: a lot of players who look chaotic from across the table are nothing of the sort. Back in 2008, Gus Hansen published a hand-by-hand account of his win at the Aussie Millions Main Event the previous January, and the reputation he carried in that era was pure wild man. The record of his actual thinking is a lot more orderly than the reputation. Every Hand Revealed is still the cleanest look at what structured aggression feels like from the inside. If the player at your table can explain his hands like that, he isn’t the problem this article is about.
What “just tighten up and wait” costs per hour
Here is the part the index card leaves out. Waiting is not free.
Take a live $2/$5 game, nine-handed, roughly 30 hands an hour. That’s about 3.3 orbits. You post $7 per orbit in blinds, so your blinds alone bleed about $23 an hour before anything else happens. Now put a maniac at the table who opens to $25 from every seat. If your plan is to fold everything but premium hands, you are surrendering those blinds almost every orbit.
A strong winner in that game might make $25 to $40 an hour. The blinds you’re conceding are most of it. So “tighten up” isn’t a conservative plan with a small cost. It’s a plan that hands back your entire edge and leaves you hoping to get it all in one spot.
The real adjustment is narrower than tightening: you widen against him specifically and tighten against everyone else. His $25 open is not a real raise, because it isn’t backed by a real range. Against a normal opener you need a hand that beats his range. Against random cards you need a hand that beats random cards, and that bar is low. Ace-nine offsuit is a comfortable call there. In a vacuum it’s a trash hand. Against two random cards it’s roughly a 60 percent favorite.
Your calling thresholds move further than you think
Run the arithmetic on a river call, because this is where most players still fold like it’s a normal game.
Pot is $200. He shoves $300. You need to win 300 divided by 800, or 37.5 percent of the time, for the call to break even. You hold second pair, no kicker.
Against a competent opponent, his shoving range on that river might be 20 combinations, maybe 15 of them value hands that crush you. You’re winning 25 percent. Easy fold.
Against true chaos, build the range differently. He got to the river with whatever he started with, minus nothing, because he never folded and never slowed down. Say that’s 40 combinations of random junk that happened to see five cards. Your second pair beats maybe 26 of them. That’s 65 percent, and you need 37.5. The call isn’t close. It’s one of the best calls you’ll make all month.
Now the exception, and it matters. This math only holds while he is genuinely not folding and genuinely not checking. The moment a chaotic player starts checking back a river, he has acquired structure, and his bets have started to mean something. Chaos is a description of a state, not a permanent property of a human being. People sober up. People get short. People remember they came here to win.
Why re-raising him is usually wrong and sizing up is usually right
The instinct when someone keeps raising is to raise back. Against a maniac this is backwards, and the reason is simple: a re-raise makes money two ways, from folds and from value, and you’ve just eliminated the first one.
So bluff three-bets go to roughly zero. Fine. The interesting half is what happens to your value raises, because they get much bigger.
Suppose he opens to $25 and you hold ace-king offsuit. Against two random cards, that’s about 65 percent equity. Normally you’d three-bet to around $75. Against a player who calls anything, make it $125 instead. Each player has now added $50 more to the pot, so there’s $100 extra out there. Your share of that $100 is $65. You put in $50 of it. That’s a straight $15 of profit created by typing a bigger number, and it repeats every single time this comes up.
The same logic runs postflop. Against a normal player you size your value bets so he can continue. Against this one, sizing is almost irrelevant to his decision, so you pick the size that maximizes what he puts in when he’s behind, which is as large as the stack allows.
The exception is when the pot has gone multiway. Three callers behind him change the problem completely. Your ace-king is no longer facing one random hand, it’s facing four, and 65 percent collapses toward 35. Isolating is the whole point, and the main reason to size up preflop is to get heads-up with him rather than to build a monster pot against a crowd. If your raise doesn’t achieve that, you’re in a different game entirely, and the usual rules about multiway pots take over from everything above.
Seat, stack, and the variance nobody warns you about
Position on him is worth more than position on anyone else at the table. You want to act after he does, which means you want the seat immediately to his left. If that seat opens, take it, even mid-session. Sitting to his right means you’ll be opening into a player who three-bets with no regard for what you hold, and you’ll have no information when you do it.
Stack depth cuts the other way from what you’d guess. Deep stacks favor the better player in theory, but they also mean more streets where you’re calling off large bets with one pair. If your reads are soft, a shorter stack simplifies the problem and caps the damage.
And then the thing nobody puts on the index card. Your win rate against this player is high and your hourly swings are enormous. You will stack off with ace-queen on an ace-high board and lose to nine-four. That outcome is not evidence your adjustments were wrong. It’s the cost of a strategy that makes money by calling more often with marginal hands.
Losing three buy-ins in two hours to a drunk is a completely normal result against a player you have a huge edge on. The players who go broke in these games mostly aren’t the ones who misread the situation. They’re the ones who read it correctly, got rivered twice, and started playing his game instead of theirs.









