JTs vs 98s: preflop equity

In equity, JTs against 98s stands at 64.70% to 35.30%, a gap of 29.40 points.

JTs

64.70%

Wins 64.12%, ties 1.16%

98s

35.30%

Wins 34.72%, ties 1.16%

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

JTs against 98s: the numbers

Exact preflop results for JTs against 98s, in percent
HandWinsTiesLosesEquity
JTs64.1221.15934.71964.702
98s34.7191.15964.12235.298

Here suited hands face each other, JTs on one side and 98s on the other. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other.

JTs is ahead, but 98s is far from dead: it takes 347 of every 1,000 deals outright. 1.16% of boards are ties, so the equity of each hand is its win rate plus half of that.

Ranked by equity against a random hand, JTs is number 45 of the 169 starting hands and 98s is number 83.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
JTs17,567,000318,0009,512,000
98s9,512,000318,00017,567,000

The total is exact: 16 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.

JTs against 98s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
JTs1.8331.5602.8800.546
98s0.5462.8801.5601.833

The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call.

Who is ahead on which flops

If you know the kind of flop that came, the numbers shift: JTs holds 70.78% on rainbow flops topped by a ten or better and 45.02% on low rainbow flops (nine high or lower). 98s takes over on low rainbow flops (nine high or lower), so the favorite before the flop is the underdog on those boards.

JTs against 98s by flop texture, in percent
FlopShare of flopsJTs winsTies98s winsJTs equity
Rainbow, ten or higher24.59570.4740.62028.90670.784
Rainbow, nine or lower6.31444.7860.46654.74845.019
Two-tone46.72764.0020.54135.45764.273
Monotone5.27359.7483.59236.66061.544
Paired17.09163.8033.12733.07065.367

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

Compared with a random opponent, this matchup shifts JTs from 57.53% by +7.17 points and 98s from 50.80% by -15.50 points.

JTs and 98s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
JTs, all flops64.70257.528+7.1741.12470
JTs, rainbow, ten or higher70.78457.528+13.2561.23043
JTs, rainbow, nine or lower45.01957.528-12.5090.78256
JTs, two-tone64.27357.528+6.7451.11725
JTs, monotone61.54457.528+4.0161.06981
JTs, paired65.36757.528+7.8391.13626
98s, all flops35.29850.801-15.5030.69483
98s, rainbow, ten or higher29.21650.801-21.5850.57511
98s, rainbow, nine or lower54.98150.801+4.1801.08228
98s, two-tone35.72750.801-15.0740.70327
98s, monotone38.45650.801-12.3450.75699
98s, paired34.63350.801-16.1680.68174

Does a shared suit matter?

The suit split reads 67.26% for JTs with a shared suit and 63.85% without one. JTs does better with a shared suit, by 3.41 points.

JTs against 98s by suit overlap, in percent
DealsSpecific dealsShare of dealsJTs winsTies98s winsJTs equity
Share a suit425.0066.6271.26632.10767.260
No shared suit1275.0063.2871.12335.59063.849

How often this matchup comes up

How often does it happen? 16 of the 1,624,350 ordered deals (0.0010%) are JTs against 98s, and 32 (0.0020%) if either hand may sit in either seat.

A worked example

Put $100 each into a $200 pot and deal every board once: JTs averages $129.40 back, ahead of its $100 by $29.40, while 98s averages $70.60, short of its $100 by $29.40.

In 1,000 deals of exactly this matchup, expect about 641 won outright by JTs, about 347 won outright by 98s and about 12 split.

The same matchup from the other side

98s against JTs adds nothing new: it is 35.30% for 98s and 64.70% for JTs, the same figures reversed.

JsTs against 9h8h is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.

How this was computed

The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 16 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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