JTo vs 65s: preflop equity

Over all 1,712,304 boards that can follow this deal, JTo finishes with 61.73% of the pot and 65s with 38.27%.

JTo

61.73%

Wins 61.16%, ties 1.14%

65s

38.27%

Wins 37.70%, ties 1.14%

Equity counts a tie as half a win. Exact over every board.

JTo against 65s: the numbers

Exact preflop results for JTo against 65s, in percent
HandWinsTiesLosesEquity
JTo61.1631.14337.69461.734
65s37.6941.14361.16338.266

The first hand is an offsuit hand; the second is a suited hand. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other.

A 23.46 point lead is real, and 65s still takes about 377 of every 1,000 deals outright. Ties are part of the picture: 1.14% of boards end in a split pot, and each side counts that as half a win.

Place 57 of 169 belongs to JTo and place 128 belongs to 65s in the ranking against a random hand.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
JTo50,270,000939,00030,981,000
65s30,981,000939,00050,270,000

The board total is exact, 48 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

JTo against 65s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
JTo1.6131.6352.6530.620
65s0.6202.6531.6351.613

The final column gives the least the pot must offer for each unit called for a call to break even at this equity.

Who is ahead on which flops

Across the five flop textures JTo's equity moves by 31.63 points, from 38.27% on low rainbow flops (nine high or lower) to 69.90% on rainbow flops topped by a ten or better. On low rainbow flops (nine high or lower) the numbers flip and 65s is the one ahead.

JTo against 65s by flop texture, in percent
FlopShare of flopsJTo winsTies65s winsJTo equity
Rainbow, ten or higher24.71769.5940.61929.78769.903
Rainbow, nine or lower6.31337.9720.59461.43438.269
Two-tone46.66760.1880.58339.22960.480
Monotone5.21258.4472.65338.90059.774
Paired17.09161.0243.17635.80062.612

Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank.

Compared with a random hand

Compared with a random opponent, this matchup shifts JTo from 55.25% by +6.48 points and 65s from 43.13% by -4.86 points.

JTo and 65s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
JTo, all flops61.73455.248+6.4861.11740
JTo, rainbow, ten or higher69.90355.248+14.6551.26526
JTo, rainbow, nine or lower38.26955.248-16.9790.69268
JTo, two-tone60.48055.248+5.2321.09470
JTo, monotone59.77455.248+4.5261.08192
JTo, paired62.61255.248+7.3641.13329
65s, all flops38.26643.133-4.8670.88716
65s, rainbow, ten or higher30.09743.133-13.0360.69777
65s, rainbow, nine or lower61.73143.133+18.5981.43118
65s, two-tone39.52043.133-3.6130.91624
65s, monotone40.22643.133-2.9070.93260
65s, paired37.38843.133-5.7450.86681

Does a shared suit matter?

Does suit overlap move the numbers? JTo has 62.46% when the hands share a suit and 61.01% when they do not. JTo does better with a shared suit, by 1.45 points.

JTo against 65s by suit overlap, in percent
DealsSpecific dealsShare of dealsJTo winsTies65s winsJTo equity
Share a suit2450.0061.8651.18736.94862.459
No shared suit2450.0060.4601.10038.44061.010

How often this matchup comes up

Counting specific cards, JTo against 65s appears in 48 of the 1,624,350 ordered heads-up deals (0.0030%), and in 96 when the seats are swapped too (0.0059%).

A worked example

Try it with money: two players each put in $100 and the whole board runs out every possible way. JTo averages $123.46 from the $200, up $23.46; 65s averages $76.54, down $23.46.

Out of 1,000 deals you should see around 612 outright wins for JTo, 377 for 65s, and 11 split pots.

The same matchup from the other side

Read it from the other side: 65s against JTo is the same matchup with the numbers swapped, so 65s holds 38.27% and JTo holds 61.73%. That address sends you back to this page.

Try JsTh against 6d5d in the calculator: the hands share no suit, and every card can be changed. The links after it are the closest matchups in the ranking.

How this was computed

Each figure is a complete count over boards. Take the 48 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops.

Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used.

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