Big O: Aces with Lows vs Rundown

Big O Equity Analysis
Big O: Aces with Lows vs Rundown equity breakdown

Big O (5-Card Omaha Hi-Lo): Aces with low cards vs a premium rundown. The hi-lo split makes this closer than you'd think.

This is one of the most searched poker matchups. Understanding the equity in these spots helps you make better decisions at the table — whether to call an all-in, shove, or fold.

Use the calculator below to explore different board textures, change the suits, or add more players to see how the equity shifts.

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Frequently Asked Questions

What is Big O poker?

Big O is 5-card Pot-Limit Omaha Hi-Lo (8 or better). Each player gets 5 hole cards and must use exactly 2 for the high and 2 for the low.