PokerSolver/5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN 4-bet 20.7bb

BB vs BTN 4-bet 20.7bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · BTN opens 3bb, BB 3-bets to 9bb, BTN 4-bets to 20.7bb · Big blind to act

Fits exactlyno game we have checked

Close1 games

CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here

Tournament

5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differHJCOBTNSBBB

Pot 31bbYour cards?

9bb

20.7bb

0.5bb

Tap your two cards.

Big blind's range

612 of 1,326 combos get here

Fold 72.2%Call 5.7%All-in 59.84bb 22.1%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 3bb, BB 3-bets to 9bb, BTN 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 60bb?

BTN opens 3bb, BB 3-bets to 9bb, BTN 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the big blind (BB) folds 72.2%, calls 5.7% and goes all-in 59.84bb 22.1%. Always call: ATs, 76s, 65s, 54s. Always all-in 59.84bb: 99+, 33-77, AJs+, KJs+, JTs, AQo+. Mixed: 88, K4s, QJs, 97s+, 86s, AJo, KJo+.

Always fold: K2s, Q6s, Q2s-Q3s, J2s-J4s, T3s-T6s, 95s-96s, 74s, 63s, 52s, 42s+, ATo, A2o-A6o, K9o-KTo, K5o-K7o, Q9o+, J9o, T7o+, 97o+, 87o, 76o
Always call: ATs, 76s, 65s, 54s
Always all-in 59.84bb: 99+, 33-77, AJs+, KJs+, JTs, AQo+
Mixed: 88, K4s, QJs, 97s+, 86s, AJo, KJo+

Settings: 5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 60bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.3). 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.

Rake sources for the games it fits: 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.