The exact hand isn't relevant, I'm asking about an GTO wizard output I don't quite understand and I need clarification.

HJ vs. BU SRP, flop is QJ5 2-tone.

HJ should lead 1/3 for ~30% of his range, and BU adopts an overbet strategy (mix 75% and 125% with ~30% of his range) if checked to.

Now, I understand there's no significant range or nut advantage so HJ shouldn't bet too large, and I understand the board texture invites overbets from BU, but why does one heuristic take president in each position? Is my logic for why each bet is happening incorrect? I would have thought the similar ranges + the wet board texture would give HJ big bets also, or at least not pure small bets. Also, given a blank turn (4s in my case) following a check-call flop HJ now develops overbets.

Basically, why the small lead from HJ on the flop despite similar ranges and a wet board? If anyone has encountered this before and can explain why this is it'd be greatly appreciated.

Not super practical spot to study. Very difficult to understand solver strategy and no one plays like that in practice, so not very applicable.

IP has a lot of pp that are pure bluff catchers, so OOP wants to force them to put some money in the pot, but he can't bet too big because big part of BU range are AQ+ and strong draws. When IP faces chdck he just bets super polar, pp are to weak to bet. That would be my guess.

In an acronym: OOP

Top 10% of HJ's range simply doesn't have enough EQ to bet expensively against BTN.

I think if you remove half+ of the 55/QJs BTN combos, HJ will start betting more expensively. On QJ2r BTN has less often set and flushdraw, and HJ starts to bet 50% pot and a little 75%.

On a blank turn if that X-X if that's what you meant, BTN bet his nuts flop and therefore EQ of hands like QK+ increases considerably for HJ, hence the possibility of overbetting them.

As for BTN's betting strategy, he has quite a few mediocre hands like TT-77 that don't want value or bluff and a deficit of hands like Jx or Q9s in the mid/high ranges. So he naturally wants to polarize.

I think the short version is, HJ has some hands that want to bet, but betting big puts it in a difficult position on future streets considering how much can change (because board is dynamic). Smaller cbet sizing is common on a dynamic board. Being out of position without a range advantage, you end up with a lot of checks.

Because HJ has a betting range as the PFR, when HJ checks, button can attack their checking range with a polarized range while being able to avoid bloating the pot more easily than HJ could on future streets when it wants to, or when runout doesn't favor it.

Tldr different sizes b/c of position and b/c of what HJ checking removes from its range.


Correct me if any of this is wrong lol

If BTN checks what is HJ optimal size on turn? Playing polar OTF OOP is very difficult

So looking a bit deeper I think you're correct about the first part, similar nuts advantage but HJ has more "best" hands (overpair-ish region) to bet small and get value with. When BU just calls, his nutted advantage slips and a blank turn allows HJ to now overbet. Similarly, if HJ checks to the BU his nutted region decreases slightly and now overbets from BU become viable.

Given a X-X flop and blank turn, HJ maintains his small bet for ~30% of range strategy and BU maintains his overbet small portion of range when checked to (my bad, I mistyped earlier, I mean bet-call, not check-call). This all makes some sense to me as the situation seems to be the same in this case on the turn as it was on the flop after X-X.

Also, another thing which follows this logic is that if HJ checks and BU goes for a bet (I looked at 75%), HJ now has only calls, range checks the blank turn, and BU has a crazy 125/175% overbet strategy for over 60% of his range.

Let me know if you have any thoughts on this, and/or if you have a GTO sub and can look at other boards such as the QJ2 2-tone I'd be very interested.

Given a X-X flop and 4s turn their strategies remain the same - HJ has some small leads on turn and BU has some large/overbets if checked to. If HJ leads small on flop and BU calls, the blank turn now gives HJ overbets.

It seems a situation where the super close ranges on the flop means whoever stabs first and last (bet followed by a call, not a raise) establishes a stronger range and they get to do the overbets.