In the game of Hold'em there are plenty of times you will need a card to show itself on the flop, turn, or the river. For instance, you may need to know the odds of catching that club on the river for the flush,
or flopping the third 8 to go with the two in your hand. In order to compute the odds of finding the card you need on the board, you will need to know two things. The first is how many 'Outs' you have.
'Outs' are simply the number of cards that can 'make' your hand. If you are looking for that flush on the river, there are 9 cards that can help you. (13 clubs in the deck - 4 clubs in your
hand or on the board = 9 clubs remaining).
The second thing to know is the number of
unseen cards. Since two cards are in your hand, and four are on the board, there are 46 card remaining. (52-2=50 followed by 50-4=46).
Now computing the odds is a simple division problem. 9 cards that can help, divided by 46 cards out there, equals 19.6%. (9÷46=19.56%). That's how you do it. Ok, 9÷46 isn't so simple, but still, that's how it's done.
Information you can use right away:
•
Flush: If you hold a four flush, the odds of catching it on the turn are
19.1%, on the river is
19.6%. Catching it on the turn
or the river is
35.0%
•
Open-Ended Straight: Odds of catching your card on the turn,
17.0%. On the river,
17.4%. On the turn
or the river,
31.5%
•
Gutshot Straight: Catching your card on the turn,
8.5%. Catching your cad on the river,
8.7%. Catching it on the turn
or the river,
16.5%
•
Trips: Turn your pair into Three-of-a-Kind on the turn,
4.3%. Catch at the river,
4.3%. Catch at the turn
or the river,
8.4%. With pocket pairs it is more likely you'll want to catch on the flop. Odds of that are
11.8%
| Number of Outs Available to Improve Your Hand |
| Outs |
You Hold |
Hope to Make |
| 2 |
A Pair |
Three of a Kind |
| 4 |
Two Pair |
Full House |
| 4 |
Inside Straight |
Straight |
| 8 |
Open-ended Straight |
Straight |
| 9 |
Four Flush |
Flush |
| 15 |
Open Straight Flush Draw |
Straight, a Flush, or Straight Flush |
| Probability of Catching an Out |
| Outs |
Turn (%) |
River (%) |
Turn or River |
| 20 |
42.6 |
43.5 |
67.5% |
| 19 |
40.4 |
41.3 |
65.0% |
| 18 |
38.3 |
39.1 |
62.4% |
| 17 |
36.2 |
37.0 |
59.8% |
| 16 |
34.0 |
34.8 |
57.0% |
| 15 |
31.9 |
32.6 |
54.1% |
| 14 |
29.8 |
30.4 |
51.2% |
| 13 |
27.7 |
28.3 |
48.1% |
| 12 |
25.5 |
26.1 |
45.0% |
| 11 |
23.4 |
23.9 |
41.7% |
| 10 |
21.3 |
21.7 |
38.4% |
| 9 |
19.1 |
19.6 |
35.0% |
| 8 |
17.0 |
17.4 |
31.5% |
| 7 |
14.9 |
15.2 |
27.8% |
| 6 |
12.8 |
13.0 |
24.1% |
| 5 |
10.6 |
10.9 |
20.4% |
| 4 |
8.5 |
8.7 |
16.5% |
| 3 |
6.4 |
6.5 |
12.5% |
| 2 |
4.3 |
4.3 |
8.4% |
| 1 |
2.1 |
2.2 |
4.3% |
This article is courtesy of
Poker Prophet
