AJs vs AJo: preflop equity

Counting every board, the equity split is 52.49% for AJs and 47.51% for AJo, so AJs leads by 4.98 points.

AJs

52.49%

Wins 7.16%, ties 90.67%

AJo

47.51%

Wins 2.17%, ties 90.67%

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

AJs against AJo: the numbers

Exact preflop results for AJs against AJo, in percent
HandWinsTiesLosesEquity
AJs7.15890.6692.17352.492
AJo2.17390.6697.15847.508

The first hand is a suited hand; the second is an offsuit hand. The two classes use the same two ranks and differ only in suits, so the suited hand is ahead mainly by making flushes.

This is close to even money, with AJs a little ahead. Split pots make up 90.67% of the boards, and both equity figures count them as half a win each.

Ranked by equity against a random hand, AJs is number 11 of the 169 starting hands and AJo is number 15.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AJs2,942,00037,261,000893,000
AJo893,00037,261,0002,942,000

24 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand.

AJs against AJo read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AJs1.10513.97046.0190.905
AJo0.90546.01913.9701.105

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

If you know the kind of flop that came, the numbers shift: AJs holds 53.28% on two-tone flops and 50.29% on monotone flops. AJs stays ahead on all five textures, and the gap between its best and worst is only 2.99 points, so the shape of the flop hardly changes who is favored.

AJs against AJo by flop texture, in percent
FlopShare of flopsAJs winsTiesAJo winsAJs equity
Rainbow, ten or higher23.1383.26596.7350.00051.633
Rainbow, nine or lower7.7713.40996.5910.00051.705
Two-tone46.3638.82988.9012.27053.280
Monotone5.15218.51463.54217.94450.285
Paired17.5766.20192.6811.11852.541

A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank.

Compared with a random hand

Against one random hand instead, AJs holds 65.39% and AJo holds 63.56%. Facing each other changes that by -12.90 points for AJs and -16.05 points for AJo.

AJs and AJo here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AJs, all flops52.49265.393-12.9010.80272
AJs, rainbow, ten or higher51.63365.393-13.7600.78958
AJs, rainbow, nine or lower51.70565.393-13.6880.79068
AJs, two-tone53.28065.393-12.1130.81477
AJs, monotone50.28565.393-15.1080.76897
AJs, paired52.54165.393-12.8520.80347
AJo, all flops47.50863.563-16.0550.74742
AJo, rainbow, ten or higher48.36763.563-15.1960.76093
AJo, rainbow, nine or lower48.29563.563-15.2680.75980
AJo, two-tone46.72063.563-16.8430.73502
AJo, monotone49.71563.563-13.8480.78214
AJo, paired47.45963.563-16.1040.74665

Does a shared suit matter?

There is no shared-suit case for this pair, since the cards they would need are already in the other hand. Every deal is a no-shared-suit deal.

AJs against AJo by suit overlap, in percent
DealsSpecific dealsShare of dealsAJs winsTiesAJo winsAJs equity
Share a suit00.00not possiblenot possiblenot possiblenot possible
No shared suit24100.007.15890.6692.17352.492

How often this matchup comes up

Exactly 24 specific deals fit this matchup in one seat order, which is 0.0015% of 1,624,350; both orders together give 48, or 0.0030%.

A worked example

Take a $200 pot built from $100 each. AJs' equity of 52.49% is worth $104.98, a $4.98 edge, and AJo's 47.51% is worth $95.02, which is $4.98 under its stake.

Scaled to 1,000 deals, that is roughly 71 wins for AJs, 22 for AJo and 907 chopped pots.

The same matchup from the other side

One page covers both views. From AJo's side the equity is 47.51%, and from AJs' side it is 52.49%.

Open the calculator with AsJs against AhJd 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

Each figure is a complete count over boards. Take the 24 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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