Equity
mathYour percentage chance of winning the pot if all cards are dealt out — your mathematical 'share' of the pot
Definition
Equity is your statistical share of the pot based on your current chance of winning the hand. If you and your opponent flip over your cards and run it to the river 100 times, equity is roughly how many times you'd win expressed as a percentage. For example, if you have 60% equity, you'd win about 60 of those 100 simulations. Equity isn't about who's currently winning — it's about who's expected to win given all the information available.
Example
You hold A♠ K♦ and your opponent holds Q♠ Q♣. All the money goes in pre-flop and you both flip over your cards. Who's winning? The queens are actually ahead — they have about 53% equity versus your 47%. You might feel like A-K is the powerhouse here, but two queens are a pair and that pair is winning right now. However, you'll win the hand 47% of the time — you're not in bad shape, just a slight underdog. If an ace or king hits the board, your equity surges. If a queen hits, your equity plummets. Equity constantly shifts as community cards are revealed.
Why It Matters
Equity is the bridge between the cards you hold and the math of poker. Every decision you make at the poker table — whether to call a bet, how much to bet, whether to shove all-in — should be informed by your equity in the hand. If you have 70% equity, you want to get as much money in the pot as possible. If you have 20% equity, you need to be getting very good odds to continue. Beginners who understand equity stop making purely "feel-based" decisions and start making decisions rooted in reality. You don't need to calculate it exactly at the table, but knowing roughly where you stand — ahead, even, or behind — transforms your game.