PokerSolver
PokerSolver/Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/A5o

How to play A5o preflop

Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb · 49 spots where A5o gets a decision

Opens (raise first in)

SpotA5o
SB open (RFI)
First to act
Raise 2/2.5/3bb 90.2% · Call 9.8%

Facing an open or a limp

SpotA5o
BB vs SB limp
SB limps
Raise 2/2.5/3bb 94% · Call 6%
BB vs SB open 2bb
SB opens 2bb
Call 91.9% · Raise 4/6bb 8.1%
BB vs SB open 2.5bb
SB opens 2.5bb
Call 57.9% · Raise 5/7.5bb 42.1%
BB vs SB open 3bb
SB opens 3bb
Call 59.1% · Raise 6/9bb 40.9%

Facing an isolation raise

SpotA5o
SB vs BB iso raise 2bb
SB limps, BB isolates to 2bb
Call 57.4% · Raise 4/6bb 42.6%
SB vs BB iso raise 2.5bb
SB limps, BB isolates to 2.5bb
Call 83% · Raise 5/7.5bb 17%
SB vs BB iso raise 3bb
SB limps, BB isolates to 3bb
Call 98.1% · Raise 6/9bb 1.9%

Facing a 3-bet

SpotA5o
BB vs SB 3-bet 4bb
SB limps, BB isolates to 2bb, SB 3-bets to 4bb
Call 81.5% · Fold 18.4% · All-in 99.84bb 0.1%
BB vs SB 3-bet 6bb
SB limps, BB isolates to 2bb, SB 3-bets to 6bb
Fold 49.4% · Raise 13.8bb 43.1% · Call 7.4%
BB vs SB 3-bet 5bb
SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb
Call 89% · Fold 9% · Raise 11.5bb 2%
BB vs SB 3-bet 7.5bb
SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb
Fold 59.8% · Call 22.5% · Raise 17.25bb 17.7%
BB vs SB 3-bet 6bb
SB limps, BB isolates to 3bb, SB 3-bets to 6bb
Fold 57.3% · Call 40.9% · All-in 99.84bb 1.1% · Raise 13.8bb 0.7%
BB vs SB 3-bet 9bb
SB limps, BB isolates to 3bb, SB 3-bets to 9bb
Fold 72.4% · Raise 20.7bb 27.6%
SB vs BB 3-bet 4bb
SB opens 2bb, BB 3-bets to 4bb
Call 98.4% · Raise 9.2bb 1.6%
SB vs BB 3-bet 6bb
SB opens 2bb, BB 3-bets to 6bb
Call 92% · Raise 13.8bb 8%
SB vs BB 3-bet 5bb
SB opens 2.5bb, BB 3-bets to 5bb
Call 53.3% · Raise 11.5bb 46.7%
SB vs BB 3-bet 7.5bb
SB opens 2.5bb, BB 3-bets to 7.5bb
Raise 17.25bb 56.1% · Call 43.9%
SB vs BB 3-bet 6bb
SB opens 3bb, BB 3-bets to 6bb
Call 67.8% · Raise 13.8bb 32.2%
SB vs BB 3-bet 9bb
SB opens 3bb, BB 3-bets to 9bb
Raise 20.7bb 78.3% · Call 21.5% · All-in 99.84bb 0.2%

Facing a 4-bet

SpotA5o
SB vs BB 4-bet 9.2bb
SB limps, BB isolates to 2bb, SB 3-bets to 4bb, BB 4-bets to 9.2bb
Call 94.5% · All-in 99.84bb 4.6% · Fold 0.9%
SB vs BB all-in
SB limps, BB isolates to 2bb, SB 3-bets to 4bb, BB goes all-in
Fold 99.8% · Call 0.2%
SB vs BB 4-bet 13.8bb
SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb
Call 88.1% · All-in 99.84bb 10.3% · Fold 1.6%
SB vs BB all-in
SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB goes all-in
Fold 99.7% · Call 0.3%
SB vs BB 4-bet 11.5bb
SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb, BB 4-bets to 11.5bb
Call 64.2% · Fold 28.8% · All-in 99.84bb 7%
SB vs BB all-in
SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb, BB goes all-in
Fold 100%
SB vs BB 4-bet 17.25bb
SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb
Call 94.1% · Fold 4.3% · All-in 99.84bb 1.7%
SB vs BB all-in
SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB goes all-in
Fold 100%
SB vs BB 4-bet 13.8bb
SB limps, BB isolates to 3bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb
Call 98% · Fold 1% · All-in 99.84bb 1%
SB vs BB all-in
SB limps, BB isolates to 3bb, SB 3-bets to 6bb, BB goes all-in
Fold 100%
BB vs SB 4-bet 13.8bb
SB opens 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb
Fold 65.7% · Call 18.2% · All-in 99.84bb 16.1%
BB vs SB all-in
SB opens 2bb, BB 3-bets to 6bb, SB goes all-in
Fold 96.6% · Call 3.4%
BB vs SB 4-bet 11.5bb
SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb
Fold 98.5% · Call 0.9% · All-in 99.84bb 0.6%
BB vs SB all-in
SB opens 2.5bb, BB 3-bets to 5bb, SB goes all-in
Fold 100%
BB vs SB 4-bet 17.25bb
SB opens 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb
Fold 100%
BB vs SB all-in
SB opens 2.5bb, BB 3-bets to 7.5bb, SB goes all-in
Fold 100%
BB vs SB 4-bet 20.7bb
SB opens 3bb, BB 3-bets to 9bb, SB 4-bets to 20.7bb
Fold 100%
BB vs SB all-in
SB opens 3bb, BB 3-bets to 9bb, SB goes all-in
Fold 100%

Facing a 5-bet or shove

SpotA5o
BB vs SB all-in
SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb, SB goes all-in
Fold 100%
BB vs SB all-in
SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb, BB 4-bets to 11.5bb, SB goes all-in
Fold 99.4% · Call 0.6%
BB vs SB all-in
SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb, SB goes all-in
Fold 99.4% · Call 0.6%
BB vs SB all-in
SB limps, BB isolates to 3bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb, SB goes all-in
Fold 96.2% · Call 3.8%
BB vs SB all-in
SB limps, BB isolates to 3bb, SB 3-bets to 9bb, BB 4-bets to 20.7bb, SB goes all-in
Fold 100%
SB vs BB all-in
SB opens 2bb, BB 3-bets to 4bb, SB 4-bets to 9.2bb, BB goes all-in
Fold 100%
SB vs BB all-in
SB opens 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb, BB goes all-in
Fold 100%
SB vs BB all-in
SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb, BB goes all-in
Fold 99.8% · Call 0.2%
SB vs BB all-in
SB opens 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb, BB goes all-in
Fold 100%
SB vs BB all-in
SB opens 3bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb, BB goes all-in
Fold 99.8% · Call 0.2%
SB vs BB all-in
SB opens 3bb, BB 3-bets to 9bb, SB 4-bets to 20.7bb, BB goes all-in
Fold 100%
Settings: Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.