How to Play 64s Preflop (GTO)

How to Play 64s — Six-Four suited Preflop Strategy

GTO opens 64s first-in from 2 of the 5 positions in 6-max cash — from the Button onward. Earlier than that, it folds. In numbers: the button opens it 68% of the time and the lojack 0%; at 15bb it is a first-in shove from 1 of 7 seats.

6-Max Cash Opening (100bb)

How often GTO opens 64s first-in from each seat.

Button

68%

Small Blind

100%

Short-Stack Jam Frequency

How often 64s is a first-in shove at short stacks (tournament).

Stack	UTG	MP	LJ	HJ	CO	BTN	SB
5bb	0%	0%	0%	0%	0%	0%	100%
8bb	0%	0%	0%	0%	0%	0%	99%
10bb	0%	0%	0%	0%	0%	0%	28%
12bb	0%	0%	0%	0%	0%	0%	96%
15bb	0%	0%	0%	0%	0%	0%	96%
20bb	0%	0%	0%	0%	0%	0%	96%

Generated from our solver database · 6-max cash (NL500) & MTT Chip-EV · updated Sep 5, 2026 · method

64s head-to-head

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Playing 64s preflop

Playable in late position — open from the Button onward and fold it from earlier seats. At 5bb it comes into the jamming range from 1 of the 7 seats — short stacks widen what's playable.

Position matters: from under-the-gun (LoJack) 64s opens 0% of the time, rising to 68% on the Button as fewer players are left to act behind you. The later you are, the wider you can open.

The common mistake with 64s is opening it from early position where the solver folds it. Respect the position threshold — it's an open from the Button onward, not before.

How to Play 64s — Six-Four suited Preflop Strategy

Playing 64s preflop

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