How to play A4s preflop
Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb · 35 spots where A4s gets a decision
Opens (raise first in)
| Spot | A4s |
|---|---|
| SB open (RFI) First to act | Raise 2/2.5/3bb 100% |
Facing an open or a limp
| Spot | A4s |
|---|---|
| BB vs SB limp SB limps | Raise 2/2.5/3bb 99.9% · Call 0.1% |
| BB vs SB open 2bb SB opens 2bb | Raise 4/6bb 92.5% · Call 7.5% |
| BB vs SB open 2.5bb SB opens 2.5bb | Raise 5/7.5bb 98.2% · Call 1.8% |
| BB vs SB open 3bb SB opens 3bb | Raise 6/9bb 91.5% · Call 8.5% |
Facing a 3-bet
| Spot | A4s |
|---|---|
| BB vs SB 3-bet 4bb SB limps, BB isolates to 2bb, SB 3-bets to 4bb | Call 57.9% · Raise 9.2bb 41.1% · All-in 99.84bb 0.7% · Fold 0.2% |
| BB vs SB 3-bet 6bb SB limps, BB isolates to 2bb, SB 3-bets to 6bb | Call 49.6% · Raise 13.8bb 41.9% · All-in 99.84bb 7.9% · Fold 0.6% |
| BB vs SB 3-bet 5bb SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb | All-in 99.84bb 53.3% · Call 36.1% · Raise 11.5bb 9% · Fold 1.6% |
| BB vs SB 3-bet 7.5bb SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb | Call 87.3% · Raise 17.25bb 7.3% · All-in 99.84bb 4.7% · Fold 0.6% |
| BB vs SB 3-bet 6bb SB limps, BB isolates to 3bb, SB 3-bets to 6bb | Raise 13.8bb 62% · Call 35.7% · Fold 2.2% · All-in 99.84bb 0.2% |
| BB vs SB 3-bet 9bb SB limps, BB isolates to 3bb, SB 3-bets to 9bb | Call 70.4% · Raise 20.7bb 29.5% · Fold 0.1% |
| SB vs BB 3-bet 4bb SB opens 2bb, BB 3-bets to 4bb | Call 98.1% · Raise 9.2bb 1.8% · Fold 0.1% |
| SB vs BB 3-bet 6bb SB opens 2bb, BB 3-bets to 6bb | Call 100% |
| SB vs BB 3-bet 5bb SB opens 2.5bb, BB 3-bets to 5bb | Call 63% · Raise 11.5bb 36.9% |
| SB vs BB 3-bet 7.5bb SB opens 2.5bb, BB 3-bets to 7.5bb | Call 100% |
| SB vs BB 3-bet 6bb SB opens 3bb, BB 3-bets to 6bb | Call 76.3% · Raise 13.8bb 22.9% · All-in 99.84bb 0.6% · Fold 0.1% |
| SB vs BB 3-bet 9bb SB opens 3bb, BB 3-bets to 9bb | Call 95.2% · All-in 99.84bb 4.8% |
Facing a 4-bet
| Spot | A4s |
|---|---|
| BB vs SB 4-bet 13.8bb SB opens 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb | All-in 99.84bb 85.6% · Call 13% · Fold 1.4% |
| BB vs SB all-in SB opens 2bb, BB 3-bets to 6bb, SB goes all-in | Fold 84.2% · Call 15.8% |
| BB vs SB 4-bet 11.5bb SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb | Call 99.2% · All-in 99.84bb 0.8% |
| 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 | All-in 99.84bb 53.2% · Call 46.7% · Fold 0.1% |
| BB vs SB all-in SB opens 2.5bb, BB 3-bets to 7.5bb, SB goes all-in | Fold 99.7% · Call 0.3% |
| BB vs SB 4-bet 13.8bb SB opens 3bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb | Call 66.7% · All-in 99.84bb 32% · Fold 1.3% |
| BB vs SB all-in SB opens 3bb, BB 3-bets to 6bb, 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 | Call 55.4% · All-in 99.84bb 44.5% · Fold 0.1% |
| 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
| Spot | A4s |
|---|---|
| BB vs SB all-in SB limps, BB isolates to 2bb, SB 3-bets to 4bb, BB 4-bets to 9.2bb, SB goes all-in | Fold 96.9% · Call 3.1% |
| 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 99.9% · Call 0.1% |
| 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 98.9% · Call 1.1% |
| 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 97.6% · Call 2.4% |
| 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 98% · Call 2% |
| 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 99.7% · Call 0.3% |
| 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 99.9% · Call 0.1% |
| SB vs BB all-in SB opens 3bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb, BB goes all-in | Fold 99.6% · Call 0.4% |
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.