First dealer’s advantageCribbage Pro player Zerrick wondered what the odds were that the player with first deal will win the game. Across our entire sample we saw that the first dealer won the game 55.5% of the time. Broken down by the players’ skill levels (using the skill levels from the first post in this series), we get:
Probability first dealer wins game
|First dealer’s skill level|
First pone’s skill level
It’s interesting to see that when the two players’ skill levels are equal the first dealer wins 55% or 56% of the time. If you work through the math you see that no matter what skill levels are involved, a player is around 11% more likely to win if she deals first than if she deals second. [Editor's Note: This should be incentive as well for those "D" level players who are not seeing an advantage when facing the higher skilled "A" and "B" players and winning only 45% of the time even as first dealer. Start taking advantage of this and win more cribbage games by improving your cribbage strategy.]
Hand statisticsLast weekend a Cribbage Pro player named Kip beat me two out of three games, then stumped me with a cribbage statistics question: “How often do players hold double runs in their hands?” Good games, Kip. Here’s the answer to your question and a few more, with lots of colorful charts:
|Type of hand|
% Dealer's Crib
|Double pairs royale|
|Double double run|
As usual, all the numbers in the blog post come from our sample of several million cribbage hands. There’s some overlap in these numbers – a hand could hold a flush and a run, or a pair and a run. Interesting to see that double double runs (for example, 4-4-5-5-6) are more common than triple runs (like 4-4-4-5-6).
What about “15”s, you say? Here’s a little chart for you:
# fifteens in hand
Note that only 20% of dealer or pone hands have 0 fifteens, which means that most hands have at least one fifteen in them. Not only that, most hands actually have at least two 15s in them.
Points per handPut those all together, and how many points do you get? You get this!
# points in hand
Hands with an even number of points are more common than hands with an odd number of points. Looking at the first table explains why – most hands have pairs and 15s (which score even number of points), while only 23% of hands have single or triple runs (which can score an odd number of points).
It’s impossible to get a 19, 25, 26, or 27 point hand, so those entries don’t show up in the chart. 22, 23, 28, and 29 are possible, but show up so rarely that their bars aren’t visible. About one in 15,000 hands on Cribbage Pro scores 28 points, and about one in 220,000 scores 29 points.
The typical crib doesn’t have as many points as the typical hand, so this next chart looks a lot different. You can score more than 16 points in a crib, but we left those bars off because those scores happen so rarely that you wouldn’t be able to see them. Only about 1 in 1,000 cribs scores more than 16 points.
# points in crib
Pegging probabilitiesThe last chart in today’s post shows pegging probabilities:
# points pegged
Logically the stats are right on but its great to see that sort of drilling down.ReplyDelete
I love crib (Cribgenie is my playing name) but I dont get into the nuances so easily; e.g. Getting my picture up, but who wants to see a retired Englishman? So a basic, but not too basic intro to Pro Online Crib would be helpful. Is the one already?
Again thanks for the data, will lok more often now.
Hi Charles, thanks for commenting and for your question. We do not have a walk through of how to play online, but we do have an FAQ with some of the more common questions we have seen here: http://www.cribbagepro.net/faq-how-to.htmlDelete
It is fairly straightforward if you jump in and give it a try. If you have any questions along the way, just let us know by emailing support@FullerSystems.com
Hey! What is the frequency of the dealer pegging ONLY the one absolute point during card by card play?ReplyDelete
Inotherwords how often does the dealer get just a GO or a 'last card'?
Hi, my gut says probably "rarely", but we would have to do some new analysis to answer that question definitively. Since this is some old data and blog post from back in 2012, we can't answer it readily, but will consider it in the future if/when we do some similar analysis.Delete
Any idea if there is a percentage showing how often someone wins the game when they peg more than their opponent?ReplyDelete
My guess is that is fairly high, as it would generally tend to indicate overall skill, but we have not done that particular analysis.Delete
My buddy and I have been playing once a week for 10 + yrs. Last year he beat me 9 convective nights and this year 3 nights in row he got 4 of a kind. We have the same experience. What are the odds? JohnReplyDelete
Hi John, if you are just asking about the odds of getting 4 of a kind, we didn't do that analysis for this blog post back in 2012 which used real live game data. For 5 card poker, the odds are one out of 4165. However, in cribbage you are dealt 6 cards instead of 5, so that improves your odds a bit. For 6 card poker, which is the same for cribbage or any other card game dealing 6 cards, you can see it shown for 6 cards here.Delete
My friend had a face card worth 10ReplyDelete
And a 3 and a 2 he counted just those together as 15 was that right it didn't seem right
Hi Lee, not sure what the question is here exactly. You may want to review the scoring rules in cribbage. 10 + 3 + 2 = 15, so that is correct.Delete
This is very informative and helpful, thanks for these stats. My dad and me play all the time and he always wants to deal first. I'm convinced now it's because statistically he would win more often.ReplyDelete
What are the odds of hitting two 6 card 29 hands in a lifetimeReplyDelete
Great data, thanks! I was really glad to see the last plot, showing pegging point probabilities. Would it be possible to get the actual numbers (percentages) in a table?ReplyDelete
This blog post is quite old now, and that data has been archived or simply deleted at this point. Perhaps more data to share at another time.Delete
Ok, thanks for answering.Delete
My sister and I played a hand where a total of 31 points were scored. I could upload the info if there were a way to do it.ReplyDelete