Q9s vs J9s: preflop equity

Q9s against J9s: the numbers

Each side holds one of the suited hands: Q9s and J9s. The two hands share a rank, and the one with the better other card dominates: it wins most kicker battles when that shared rank hits.

A lead of 40.30 points is large but not decisive: J9s still takes about 280 of every 1,000 deals. 3.71% of boards are ties, so the equity of each hand is its win rate plus half of that.

For context, Q9s sits at number 43 of 169 starting hands and J9s at number 55 when each is run against a random hand.

The total is exact: 12 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.

The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity.

Who is ahead on which flops

Split by what the flop looks like, Q9s peaks at 80.85% on low rainbow flops (nine high or lower) and bottoms out at 63.36% on monotone flops. Q9s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

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 57.66%, Q9s changes by +12.49 points, and J9s, from 55.66%, by -25.81.

Does a shared suit matter?

For this pair the shared-suit row is empty: the two hands cannot both own a card of one suit without reusing a card.

How often this matchup comes up

How often does it happen? 12 of the 1,624,350 ordered deals (0.0007%) are Q9s against J9s, and 24 (0.0015%) if either hand may sit in either seat.

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average Q9s takes back $140.30 of it, which is $40.30 more than it put in, and J9s takes back $59.70, $40.30 less than it put in.

Over a long run, 1,000 deals split into about 683 for Q9s, 280 for J9s and 37 tied.

The same matchup from the other side

If you came looking for J9s against Q9s, the numbers are the same with the hands swapped: 29.85% and 70.15%.

Keep exploring

Try Qs9s against Jh9h 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.

• Open Qs9s against Jh9h in the equity calculator
• Q9s combos
• J9s combos
• Q9s vs JTo
• Q9s vs T9s
• JTs vs J9s
• All hand matchups