AA vs JTs: preflop equity

The exact count puts AA at 78.84% and JTs at 21.16% when the two hands see all five board cards.

AA

78.84%

Wins 78.65%, ties 0.38%

JTs

21.16%

Wins 20.97%, ties 0.38%

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

AA against JTs: the numbers

Exact preflop results for AA against JTs, in percent
HandWinsTiesLosesEquity
AA78.6510.37720.97278.840
JTs20.9720.37778.65121.160

We compare a pocket pair with a suited hand. A pair against two lower cards is a lopsided matchup: the pair is ahead and the other hand has no overcard to catch.

That is a clear edge, 78.84% to 21.16%, but JTs still wins often enough that one hand proves nothing. Split pots make up 0.38% of the boards, and both equity figures count them as half a win each.

Place 1 of 169 belongs to AA and place 45 belongs to JTs in the ranking against a random hand.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AA32,322,000155,0008,619,000
JTs8,619,000155,00032,322,000

Exact total: 24 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate.

AA against JTs read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AA3.7261.2714.7680.268
JTs0.2684.7681.2713.726

In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity.

Who is ahead on which flops

By flop texture, AA's equity runs from 73.48% on monotone flops up to 85.85% on low rainbow flops (nine high or lower). AA stays ahead on all five textures.

AA against JTs by flop texture, in percent
FlopShare of flopsAA winsTiesJTs winsAA equity
Rainbow, ten or higher23.13878.3330.15321.51478.409
Rainbow, nine or lower7.77185.4040.89713.69985.852
Two-tone46.54576.6960.31422.99076.853
Monotone5.21272.2802.40525.31573.482
Paired17.33483.2110.00716.78283.215

Flop types: rainbow means three different suits, two-tone means one suit twice, monotone means one suit three times, paired means a repeated rank.

Compared with a random hand

The table below sets each hand against its own random-hand baseline: a change of -6.36 points for AA, from 85.20%, and -36.37 for JTs, from 57.53%.

AA and JTs here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AA, all flops78.84085.204-6.3640.92531
AA, rainbow, ten or higher78.40985.204-6.7950.92025
AA, rainbow, nine or lower85.85285.204+0.6481.00761
AA, two-tone76.85385.204-8.3510.90199
AA, monotone73.48285.204-11.7220.86242
AA, paired83.21585.204-1.9890.97666
JTs, all flops21.16057.528-36.3680.36782
JTs, rainbow, ten or higher21.59157.528-35.9370.37531
JTs, rainbow, nine or lower14.14857.528-43.3800.24593
JTs, two-tone23.14757.528-34.3810.40236
JTs, monotone26.51857.528-31.0100.46096
JTs, paired16.78557.528-40.7430.29177

Does a shared suit matter?

The suit split reads 79.40% for AA with a shared suit and 78.28% without one. AA does better with a shared suit, by 1.12 points.

AA against JTs by suit overlap, in percent
DealsSpecific dealsShare of dealsAA winsTiesJTs winsAA equity
Share a suit1250.0079.1860.41920.39579.396
No shared suit1250.0078.1150.33621.54978.283

How often this matchup comes up

The class pair covers 24 combinations of specific cards in a fixed seat order, 0.0015% of 1,624,350, and 48 (0.0030%) in either order.

A worked example

A $100 all-in from each player makes a $200 pot, and the exact equity says AA gets $157.68 of it on average and JTs gets $42.32.

Out of 1,000 deals you should see around 786 outright wins for AA, 210 for JTs, and 4 split pots.

The same matchup from the other side

Swap the hands and you get JTs with 21.16% against AA with 78.84%. We keep one page per matchup, with the better-ranked hand first.

Open the calculator with AsAh against JdTd already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking.

How this was computed

All 1,712,304 five-card boards are dealt for every suit pattern among the 24 specific deals of AA against JTs, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains.

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

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