QTo vs 65s: preflop equity

The exact count puts QTo at 60.04% and 65s at 39.96% when the two hands see all five board cards.

QTo

60.04%

Wins 59.59%, ties 0.89%

65s

39.96%

Wins 39.52%, ties 0.89%

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

QTo against 65s: the numbers

Exact preflop results for QTo against 65s, in percent
HandWinsTiesLosesEquity
QTo59.5890.89439.51760.036
65s39.5170.89459.58939.964

The matchup pits an offsuit hand against a suited hand. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

A 20.08 point lead is real, and 65s still takes about 395 of every 1,000 deals outright. 0.89% of boards are ties, so the equity of each hand is its win rate plus half of that.

In the ranking of all 169 starting hands, QTo is number 47 and 65s is number 128.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
QTo48,977,000735,00032,479,000
65s32,479,000735,00048,977,000

The total is exact: 48 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand.

QTo against 65s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
QTo1.5021.6782.5310.666
65s0.6662.5311.6781.502

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

If you know the kind of flop that came, the numbers shift: QTo holds 68.71% on rainbow flops topped by a ten or better and 32.79% on low rainbow flops (nine high or lower). On low rainbow flops (nine high or lower) the numbers flip and 65s is the one ahead.

QTo against 65s by flop texture, in percent
FlopShare of flopsQTo winsTies65s winsQTo equity
Rainbow, ten or higher24.71768.4860.45531.05968.714
Rainbow, nine or lower6.31332.4630.65266.88532.789
Two-tone46.66758.3740.47041.15658.609
Monotone5.21257.1792.56540.25658.462
Paired17.09160.7962.26736.93761.929

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

How much does the opponent matter? Compared with its random-hand 57.29%, QTo changes by +2.75 points, and 65s, from 43.13%, by -3.17.

QTo and 65s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
QTo, all flops60.03657.291+2.7451.04791
QTo, rainbow, ten or higher68.71457.291+11.4231.19939
QTo, rainbow, nine or lower32.78957.291-24.5020.57232
QTo, two-tone58.60957.291+1.3181.02301
QTo, monotone58.46257.291+1.1711.02044
QTo, paired61.92957.291+4.6381.08096
65s, all flops39.96443.133-3.1690.92653
65s, rainbow, ten or higher31.28643.133-11.8470.72534
65s, rainbow, nine or lower67.21143.133+24.0781.55823
65s, two-tone41.39143.133-1.7420.95961
65s, monotone41.53843.133-1.5950.96302
65s, paired38.07143.133-5.0620.88264

Does a shared suit matter?

Does suit overlap move the numbers? QTo has 60.74% when the hands share a suit and 59.34% when they do not. QTo does better with a shared suit, by 1.40 points.

QTo against 65s by suit overlap, in percent
DealsSpecific dealsShare of dealsQTo winsTies65s winsQTo equity
Share a suit2450.0060.2680.93638.79660.736
No shared suit2450.0058.9100.85240.23859.336

How often this matchup comes up

Exactly 48 specific deals fit this matchup in one seat order, which is 0.0030% of 1,624,350; both orders together give 96, or 0.0059%.

A worked example

Try it with money: two players each put in $100 and the whole board runs out every possible way. QTo averages $120.08 from the $200, up $20.08; 65s averages $79.92, down $20.08.

Over a long run, 1,000 deals split into about 596 for QTo, 395 for 65s and 9 tied.

The same matchup from the other side

The mirror image, 65s against QTo, is 39.96% to 60.04%, and its address redirects to this page.

The calculator link fills in QsTh against 6d5d, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength.

How this was computed

The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 48 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows.

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

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