Mixed Strategy

In poker theory, a mixed strategy means randomizing between actions with the same hand. This concept arises because at equilibrium (GTO play), certain hands are indifferent between two or more actions, meaning the expected value is the same regardless of which action you choose. When this occurs, the correct play is to mix between the actions at specific frequencies. For example, a solver might determine that QJs from the Hijack should open-raise 80% of the time and fold 20% of the time. Both actions have the same expected value at equilibrium, but playing either one 100% of the time would make you exploitable. By mixing, you keep opponents guessing and maintain a balanced overall range. Mixed strategies appear throughout preflop and postflop play. Common mixing spots include borderline opening hands from middle positions, 3-betting versus calling with hands like JJ or AQs, and choosing between different bet sizes postflop. The frequencies are specific to each situation and depend on stack depth, position, and the actions that preceded. In practice, implementing mixed strategies at the exact solver frequencies is extremely difficult. Most players approximate by using simple rules: for a hand that should be played 60% one way, you might use a time-based randomizer (checking the seconds on the clock), suit-based rules (raise with heart/spade suits, call with club/diamond), or simply alternate between actions across different sessions. The key insight is that understanding why certain hands mix helps you build better overall strategies, even if your execution is imperfect.