Definition and Basic Principles

In Texas Hold'em, the ranking of hands is the core rule that determines the winner of each round. There are 10 standard poker hand types, ranging from the weakest "High Card" to the strongest "Royal Flush", each arranged based on the combination of five cards. Hand strength is determined by the probability of the hand type occurring: the harder a hand is to make, the higher its rank. Note that when comparing hands, the hand type level is considered first; if the types are the same, the rank (or kicker) is compared. Some hand types (such as Two Pair or Full House) also require comparison of secondary ranks.

Hand Type Explanation (High to Low)

1. Royal Flush

• Definition: Five consecutive cards of the same suit, consisting of 10-J-Q-K-A. A royal flush is a special case of a straight flush, so it is not usually listed as a separate category, but in actual play it is the highest hand.
• Probability: Approximately 0.00015% (occurs on average once in every 649,740 hands).
• Example: ♠10 ♠J ♠Q ♠K ♠A.

2. Straight Flush

• Definition: Five consecutive cards of the same suit, excluding the royal flush. If two straight flushes occur, compare the rank of the highest card; if the highest cards are the same, continue with the next highest, and so on.
• Example: ♣5 ♣6 ♣7 ♣8 ♣9 (non-royal straight flush, highest card 9).
• Common Misconception: A straight flush only requires consecutive cards of the same suit. An Ace can be used as the highest (A-K-Q-J-10) or the lowest (A-2-3-4-5). A-2-3-4-5 is the smallest straight, and as a straight flush it is still the lowest in the straight flush category.

3. Four of a Kind

• Definition: Four cards of the same rank plus one unrelated card (kicker). Compare the rank of the four-of-a-kind; if equal, compare the kicker.
• Example: ♦8 ♠8 ♣8 ♥8 ♦2.

4. Full House (Boat)

• Definition: Three cards of one rank plus a pair. First compare the rank of the three-of-a-kind; if equal, compare the rank of the pair.
• Example: ♠K ♥K ♦K ♠5 ♣5.
• Practical Tip: A full house can win a pot because the three-of-a-kind is higher, even if the pair is smaller. For example, three 10s with a pair of 2s beats three 9s with a pair of Aces.

5. Flush

• Definition: Five cards of the same suit but not in sequence. Compare ranks, starting from the highest card and going down until a winner is determined.
• Example: ♠A ♠J ♠8 ♠4 ♠2.
• Common Misconception: Many mistakenly think that flushes are compared by the total sum of ranks. In fact, the rule is to compare the highest card one by one. For example, A-K-Q-8-3 of different suits (all same suit) beats A-Q-J-9-7 of the same suit, because the second card (K) is higher than Q.

6. Straight

• Definition: Five consecutive ranks of different suits. Ace can be used as high or low. Compare the rank of the highest card; if equal, it is a tie (since straights do not use kickers).
• Example: 8-9-10-J-Q (highest card Q); A-2-3-4-5 is the smallest straight.
• Special Note: Straights do not consider suits, so ties are more common, especially when the community cards clearly form a straight.

7. Three of a Kind

• Definition: Three cards of the same rank plus two unrelated cards. Compare the rank of the three-of-a-kind; if equal, compare the highest of the remaining two cards (the kicker), then the second kicker.
• Example: ♠5 ♥5 ♦5 ♣K ♠8.

8. Two Pair

• Definition: Two different pairs plus one unrelated card. First compare the rank of the higher pair; if equal, compare the lower pair; if still equal, compare the kicker.
• Example: ♠A ♥A ♣K ♦K ♠9.
• Common Misconception: When comparing two pairs, having the same higher pair does not necessarily mean a tie; the lower pair and kicker also matter. For example, A-A-K-K-Q beats A-A-K-K-J.

9. One Pair

• Definition: One pair of same rank plus three unrelated cards. First compare the rank of the pair; if equal, compare the highest remaining cards one by one.
• Example: ♦J ♣J ♠A ♥8 ♠4.

10. High Card

• Definition: Five cards with no combination—all ranks different and not forming a straight or flush. Compare ranks, starting from the highest card; if all cards are identical, it is a tie.
• Example: ♠A ♣K ♦9 ♥5 ♠2.

Practical Examples

• Scenario 1: Player A has ♠A ♠K, Player B has ♦A ♦Q. Community cards are ♠5 ♠6 ♠7 ♣8 ♥2. Player A's hand is A-K-8-7-6 flush, Player B's hand is A-Q-8-7-6 flush. Player A wins because the second card (K) is higher than Q.
• Scenario 2: Board is ♠10 ♥J ♦Q ♣K ♠A. All players have the same straight (10-A), pot is split.
• Scenario 3: Player A has ♥A ♥K, Player B has ♠A ♦K. Community cards are ♣A ♥Q ♦J ♠8 ♠3. Both players have a pair of Aces, but Player A's kicker is K, and Player B's kicker is also K, so the remaining cards Q, J, 8, 3 are all the same; it is a tie.

Common Misconceptions

1. Straights cannot wrap around: A-K-Q-J-10 is the highest straight, but A-2-3-4-5 is a valid straight (lowest). J-Q-K-A-2 is not a straight because it is not consecutive (Ace cannot be followed directly by 2 except in a wheel straight).
2. Priority of flush vs. straight: Some think a flush beats a straight (which may be true in certain poker variants), but in Texas Hold'em the order is: straight flush > four of a kind > full house > flush > straight.
3. Kicker comparison: Many beginners ignore kickers when comparing one pair or two pair. For example, a pair of Aces with a King kicker beats a pair of Aces with a Queen kicker, even if the other cards are smaller.

Summary

Mastering the order of hand rankings is the foundation for learning Texas Hold'em. Remember that a royal flush is the strongest, high card is the weakest, and the rest are arranged in descending order of probability. In actual play, hand rankings directly influence betting decisions and preflop strategy. Beginners are advised to print out a hand ranking chart and keep it by the table until they can use it fluently. Through repeated practice and comparison, intuition can be developed, helping to avoid losing chips due to misunderstanding hand types.