Heads-Up Adjusting to Ante Structures in the Small Blind Owen Gaines Owen Gaines is a professional poker player and author who has played an estimated ten million hands and written four poker strategy books. April 14, 2026 Heads-up play requires widening ranges and adjusting bet sizing when antes are present The introduction of an ante in heads-up play fundamentally alters the mathematical incentives for the small blind in poker. This requires a shift in strategy in order to balance the difference. Because the pot starts larger, you are getting better immediate odds on every chip you commit to the middle. This necessitates a significant widening of your opening range to include almost any two cards with marginal equity. Failing to attack these pots allows the big blind to realize their equity too cheaply. You must punish passive opponents by forcing them to defend a wider, weaker range of hands. Your bet sizing should reflect the increased pot depth created by the ante structure. A traditional 2x or 2.2x raise often fails to provide enough fold equity when the pot is already bloated. Consider increasing your standard open to 2.5x or even 3x to pressure the big blind’s stack-to-pot ratio. This larger sizing forces the opponent into difficult decisions with medium-strength holdings. It also creates a more profitable environment for your high-equity semi-bluffs on the flop. Defensive adjustments are equally critical when the action folds back to you in the small blind. You cannot afford to fold frequently when the ante is already dead money in the center. Modern solvers suggest a high frequency of limping or “completing” the small blind to see flops inexpensively with speculative hands. This strategy protects your stack while keeping the pot manageable against aggressive players. Maintaining a balanced mix of raises and limps will keep your strategy unpredictable and difficult to exploit.