In poker, a three of a kind is a hand made of three cards of the same rank. In Texas Hold'em, it completes about 4.83% of the time — roughly once in every 21 hands. It sits exactly in the middle of the hand rankings and is a powerful hand that can easily decide a pot in real play. This article explains “what is three of a kind in poker?” for beginners, covering the conditions for making it, where it ranks, how often it appears, and the difference between a set and trips.
What Is Three of a Kind? The Conditions for Making It
is a hand made of three cards of the same rank. The suits don't matter — as long as you have “three cards of the same rank,” the hand is made. The remaining two cards act as kickers to decide the winner.
For example, each of the following combinations is three of a kind.
AAAK7 (three Aces + kickers K, 7)
QQQ93 (three Queens + kickers 9, 3)
777AJ (three 7s + kickers A, J)
Three cards plus two other cards make five cards in total. If you collect four cards of the same rank, the hand improves to four of a kind; three of a kind plus a separate pair improves to a full house.
What's the Difference Between Three of a Kind, Two Pair, and Full House?
The hand changes depending on how many cards of the same rank you combine.
Two Pair: 2 + 2 (four cards total, forming two different pairs)
Three of a Kind: 3 + 2 other cards (three cards of the same rank)
: 3 + 2 other cards (three of a kind plus a pair)
Four of a Kind: four cards of the same rank
If three of a kind picks up a “pair,” it improves to a full house; if one more card of the same rank comes, it becomes four of a kind. Three of a kind sits in the middle of this ladder.
How Strong Is Three of a Kind? Its Place in the Hand Rankings
In Texas Hold'em, three of a kind ranks above two pair and below a straight. The hand rankings are as follows (higher is stronger).
Four of a Kind
Full House
Flush
Straight
Three of a Kind (here)
Two Pair
High Card
Three of a kind is exactly in the middle of the ten hand types (7th from the top). It appears relatively rarely, at about 4.83%, and when you complete it, it's a strong hand that can decide a pot in real play. See the poker hand rankings chart for how all the hands relate to one another.
If Two Players Both Have Three of a Kind, Who Wins?
When two three of a kind hands collide, the winner is decided in the following order.
First, compare the rank of the three matching cards. The higher rank wins.
If the three matching cards are the same rank, compare the highest kicker (the higher of the remaining two cards).
If the first kicker is also the same, the second kicker decides the winner.
For example, between “three Kings + kicker A” and “three Queens + kicker A,” the three-of-a-kind ranks are K and Q, so three Kings wins. The rank of the three matching cards takes overwhelming priority.
What Are the Odds of Making Three of a Kind?
In Texas Hold'em, you make your hand by choosing the strongest five cards from the seven total cards made up of your two hole cards and the five board cards.
Total number of ways to be dealt seven cards from 52:
52C7 = 133,784,560Of these, the number of combinations that end as three of a kind (excluding cases that improve to a full house or four of a kind):
6,461,620 combinationsAs a probability:
6,461,620 / 133,784,560 ≒ 0.048299In percentage terms, that's about 4.83%, appearing roughly once in every 21 hands. It's on par with a straight (about 4.62%), making it one of the more common hands among the higher-ranked ones. For the basics of probability calculations, see poker probability basics worth knowing.
What's the Difference Between a Set and Trips?
Three of a kind can be completed in two ways, and poker terminology gives each one a distinct name.
: three of a kind made when your pocket pair (two hole cards of the same rank) meets one matching card on the board (e.g., hole cards 77, board 7K2). A powerful hand that's hard for opponents to see
: three of a kind made from one hole card and a pair on the board (e.g., hole cards K3, board KK7). A hand that is just as visible to opponents
Both count as the same “three of a kind,” but a set is said to be overwhelmingly stronger. The reasons are (1) opponents can't see it, so it can ambush them, and (2) there's no worry about losing on kickers (your pocket pair provides the deciding third card). s dealt preflop are worth playing carefully.
Frequently Asked Questions About Three of a Kind
Q. Which is stronger, a set or trips?
A. As hand names, both are simply “three of a kind” and equally strong. However, strategically a set is overwhelmingly more advantageous. Opponents have a harder time reading it, and its concealed strength is the source of its value.
Q. What's the difference between three of a kind and a full house?
A. Three of a kind is “three cards of the same rank + two unmatched cards,” while a full house is “three cards of the same rank + two cards of another matching rank.” When three of a kind picks up a “pair,” it improves to a full house.
Q. What's the best way to aim for three of a kind?
A. It's most efficient to start from a pocket pair (two hole cards of the same rank). The probability of a pocket pair flopping a set is about 11.8% (roughly once in every 8.5 hands). Pocket pairs are worth seeing the flop with aggressively.
Q. What if three cards of the same rank appear on the board?
A. When three of a kind (trips) is on the board, every player in the hand shares that three of a kind. The difference is made by the “two kickers,” and the player with the higher hand wins.
Summary
Three of a kind is a high-ranking hand made of three cards of the same rank. In Texas Hold'em, it appears about 4.83% of the time, completing roughly once in every 21 hands. Remember that the winner is decided with the rank of the three matching cards taking overwhelming priority, and the strategic difference between a set (concealed) and trips (open).
If you want to learn the poker hand rankings systematically, check out the poker hand rankings chart as well. For hands-on practice, the poker learning app “POKER Q'z” comes highly recommended.