The OOP calling range is particularly important because it includes hands with good equity but insufficient strength to justify a 3bet, which must be defended to maintain MDF. Building a good OOP calling range requires balance: including medium-value hands that play well in multistreet situations, avoiding dominated hands that lose heavily when the opponent’s stronger holdings enter the pot, and maintaining strong board coverage equity on unfavorable boards. In 3bet pots, the OOP calling range should be more restricted to avoid playing large pots without position with speculative hands. The OOP caller should plan their postflop strategy before calling, identifying favorable and adverse boards for their range.