Royal Straight Flush Probability Texas Holdem

Royal Straight Flush Probability Texas Holdem Average ratng: 8,6/10 8335 votes
Farley

The following table shows the number of combinations for 2 to 10 cards from a single 52-card deck, with no wild cards. For the purpose of this table, a royal flush, straight flush, flush, and straight must use all cards. A royal flush is defined as an ace-high straight flush. For example, with three cards, a royal flush would be suited QKA.

  • Only 4 possible Royal Straight Flushes. When we subtract the 4 Royal Straight Flushes from the total of 40 Straight Flushes, we are left with 36 other Straight Flushes that are King high.
  • The probability of making a royal flush is 4/C(52,5) which is equivalent to 1/649740. In terms of odds, this is 649739 to 1 Either you interpreted it wrong, or they were slightly off. Wow.that is much smaller.
I am trying to determine the probability of the following occurrences in a Texas Holdem Game with 9 players.
On the flop:
Royal Flush versus queen high straight flush ( I.E board of 10 J Q suited versus AK and 89 of same suit)
On the turn:
Flopped Royal Flush versus 4 of a kind made on the turn
Flopped 4 of a kind versus turned 4 of a kind (pocket pair versus pocket pair)
ThatDonGuy

I am trying to determine the probability of the following occurrences in a Texas Holdem Game with 9 players.
On the flop:
Royal Flush versus queen high straight flush ( I.E board of 10 J Q suited versus AK and 89 of same suit)

Royal Straight Flush Probability Texas Holdem Tournaments


There are combin(52,3) = 22,100 different flops, of which four (one of each suit) is Q-J-10, so the probability of the three flop cards being Q-J-10 suited is 1/5525.
I'm not 100% sure I am calculating this right, but here goes...
The probability that any of the 18 hole cards is the Ace of that suit is 18/49.
The probability that that player's other card is the King is 1/48.
The probability that any of the 16 remaining hole cards is the 9 of that suit is 16/47.
The probability that that player's other card is the 8 is 1/46.
The probability that one player in a nine-player game has a royal on the flop and another has a Queen-high SF is the product of these five numbers, or about 1 in 97,551,242.
MaxPen
Where did this happen at?
Farley

Where did this happen at?


It didnt, just trying to determine the probabilities for promotional purposes.
Ibeatyouraces
Straight
I've seen a straight flush vs. straight flush bad beat jackpot once.
Farley

I've seen a straight flush vs. straight flush bad beat jackpot once.


Flopped?<---very uncommon, hence my inquiry in my first post.
I like to know the probability of that as well (IE and three suited connect cards with each player holding the two straight flush cards for either side.)
with all 5 board cards, ive seen straight flush versus straight flush (each player using both hole cards) quite a few times in 25 years or so in card rooms
MaxPen

It didnt, just trying to determine the probabilities for promotional purposes.


There is a point in time that an outcome is so unlikely that a promotion based on it is BS.
Farley

There is a point in time that an outcome is so unlikely that a promotion based on it is BS.


I agree, players would recognize that point and it would likely have little affect. Trying to find the median.
Currently the Bad Beat is AAA1010 or better losing to 4 of a kind or better, both cards must play.Royal Straight Flush Probability Texas Holdem
Objective:
To add additional value to the jackpot ( I.E adding 5K 10K 15K ...or up to 50 or 100K) depending on the hands that qualify and when those hands are made.
AlmondBread

Royal Straight Flush Probability Texas Holdem Practice

Hi all. I should have stumbled upon this forum sooner.Flush

about 1 in 97,551,242.

I agree.
4 * C(9,2) / C(52,7) / C(7,3) / 3!!
Numerator: 4 suits, 1 valid flop combo for each suit, C(9,2) possible player matchups, 1 combo for the hole cards

Royal Straight Flush Probability Texas Holdem Rules

Denominator: 7 cards dealt out of 52, then C(7,3) choices for which 3 are on the flop, then 3!!=3 possible ways to distribute the 4 hole cards between the 2 players involved (when it doesn't matter who gets the Royal and who gets the other).