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Starting Hand

How to Play KJs — King-Jack suited Preflop Strategy

KJs is a premium starting hand: GTO opens it first-in from all 5 positions in a 6-max cash game, and it stays in the shoving range down to the shortest stacks. It's a raise-or-shove hand — never a fold first-in. In numbers: it opens 100% from every seat, button and lojack alike; at 15bb it is a first-in shove from 7 of 7 seats; heads-up against KQs it has 29.0% equity.

6-Max Cash Opening (100bb)

How often GTO opens KJs first-in from each seat.

LJ
100%
HJ
100%
CO
100%
Button
100%
Small Blind
100%

Short-Stack Jam Frequency

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

Stack UTG MP LJ HJ CO BTN SB
5bb 100% 100% 100% 100% 100% 100% 100%
8bb 100% 100% 100% 100% 100% 100% 100%
10bb 100% 100% 100% 100% 100% 100% 100%
12bb 100% 100% 100% 100% 100% 100% 100%
15bb 100% 100% 100% 100% 100% 100% 100%
20bb 93% 96% 100% 100% 100% 100% 100%

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

KJs head-to-head

Exact preflop equity against the hands it usually runs into.

Run KJs against any hand, range or board →

Drill KJs from every seat, or take it to a flop

The table above is KJs preflop at fixed stacks. Drill it with every other hand until the right open is automatic, or put KJs on a board of your choosing and solve the postflop with your own sizes.

Drill preflop ranges →

25 graded hands a day on the free plan

Solve KJs on a flop →

3 solves a day on the free plan, your own sizes

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Playing KJs preflop

A premium hand — open it first-in from every position. As stacks get short it only gets stronger — at 5bb KJs is a jam from essentially every seat.

KJs opens from every seat — it's strong enough to raise even under the gun (LoJack), where you have the whole table left to act behind you. Position doesn't change the decision here: it's an open everywhere.

The common mistake with KJs is playing it too passively — slow-playing or flat-calling when the solver simply raises it for value from every seat. Open it, and be ready to get the money in.

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