Blackjack Splitting: When to Split Every Pair
Learn exactly when to split pairs in blackjack with our complete guide covering every pair against every dealer upcard.
Why Splitting Matters
Splitting allows you to turn one bad hand into two potentially better ones, or double your exposure on a strong hand. Knowing when to split and when not to is a crucial part of blackjack basic strategy and can significantly impact your results.
Always Split These
Always split aces—you turn a mediocre hand of 12 into two chances at 21. Always split eights—a total of 16 is the worst hand in blackjack, while two eights each have the potential to become 18.
Never Split These
Never split tens—a total of 20 is an excellent hand that wins the vast majority of the time. Never split fives—a total of 10 is a strong position for doubling down.
Conditional Splits
Split twos, threes, and sevens against dealer 2-7. Split sixes against dealer 2-6. Split fours only against dealer 5-6. Split nines against everything except 7 (stand), 10, and ace (stand). These conditional splits are where many players make costly mistakes.
Frequently Asked Questions
Written by
Michael Thompson
15y expMichael is a veteran of the American online gambling industry with 15 years covering state-by-state regulation. He is an authority on the patchwork of US gambling laws and their evolution since PASPA's repeal. His analysis helps American players navigate the complex state licensing landscape.