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last couple of days variance has been kickin my b utt, losin to some horrendous outdraws etc, but also ive lost set over set about 6-7 times in the last 2-3 days for some sizeable pots, so does any1 know what the odds of some1 else having a set when uve flopped one yourself?
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Let's do it the simple way.
Assume heads-up, assume you both have PP
Odds of you flopping a set = 11.9% (Assume 48 unknown cards, assume set, not quads/boat)
http://www.ohrt.com/odds/index.php
48 total cards, 3 drawn, 2 outs, 1 needed.
Pretty standard poker knowledge...
Then looking from the other player's point of view, one card on the flop has to match your pp, so there are 47 unknown cards, 2 more cards to come on the flop, 2 outs, 1 needed.
This has an 8.3% chance of happening
So when you flop a set, assuming you know for certain the other person has a pp, they are 8.3% (11-1 to hit a set too)
players at the table.)
This leave 48 cards unaccounted for. Therefore, based on our assumption,
there are C(48,3)=17296 equally likely flops possible. (Note: C(n,k) = the
number of possible combinations of k cards from n cards. The formula is
n!/(k!(n-k)!).)
In order for both players to flop sets, the flop must include one of the
two remaining queens, one of the two remaining tens, and one of the other
44 cards in the deck. The number of ways such a flop can occur is
2*2*44=176.
Therefore, the probability of set-over-set occurring, given our initial
assumption, 176 in 17296. This is about 1.02%, or roughly one in 98."
It is 15:1 to have a pocket pair.
So it is the same for your opponents divided by the number of opponents.
Then we need to know what your pair you have so we can adjust the odds of them having a higher pocket pair.
To hit a set on the flop is about7.5:1
This is the same for your opponent as well but we have to allow for the 1 card removed for your set so it is only 2 out of 3.
With all of the relevant data i could work it out but as a rough guess on a six handed table and assuming you have a middle pocket pair it is over 300:1
BUZZ LIGHTYEAR ... lol
say its about in the middle pocket 8's, and you're first to act 6 handed. the chances of someone else having a pocket pair are 15/5 (1 in 3) and the chances of them having a higher pocket pair than you is 1 in 6 probably something around 75-1 you both hit a set i think it'd be something between 300-1 and 500-1