Chance of hitting 3 of a kind

Playing with play money online, blinds are 500/1000. Both villain and I have deep stacks, around 230,000 for me and roughly 180,000 for him.

I have `AA`, he raises, I 3-bet and he 4-bets all-in. At this point I figure he has a pocket pair but since I have aces, I call him.

The flop comes, he hits a King and makes it 3 of a kind with his `KK`. Needless to say I lost.

Was calling the right thing to do? What are the chances of hitting a 3 of a kind before the flop?

• Calling was definitely right. The chances of hitting 3OAK before the flop is 0%. ;) Commented Jan 23, 2017 at 7:04
• just a cooler - he never folding KK and you never folding AA Commented Jan 23, 2017 at 16:32
• Sure. What's the chance of hitting 3 OAK on the flop, turn or river? Commented Jan 23, 2017 at 16:39
• What were the bet/raise sizes? Although it's (usually) completely fine to call any bet/raise with AA, I do find it strange that your opponent is already all-in at the 4-bet when both players are around 200 BB deep. If either of you had gone slower, you may have had the chance to get out after the flop. Commented Jan 24, 2017 at 9:41
• When you have the best hand, you never want to fold. If you find yourself in a situation where you're tempted to fold AA preflop, that means you're playing at too high-stakes a table. Commented Aug 14, 2019 at 3:42

Absolutely calling is the correct play for you. You are heads up with the best starting hand.

The odds of hitting a set on the flop is about 11%.

AA wins about 80% of the time vs KK.

Just adding to the answer from Herb. Give him the the check.

AA is the best possible hand - always call pre flop

From combinations make trips on the flop

combin(2,1) * combin(48,2) / combine(50,3) = 11.5% = 7.7:1