PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN 4-bet 17.25bb

BB vs BTN 4-bet 17.25bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · BTN opens 2.5bb, BB 3-bets to 7.5bb, BTN 4-bets to 17.25bb · Big blind to act

4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 25.89bbYour cards?

7.5bb

17.25bb

0.5bb

Tap your two cards.

Big blind's range

602 of 1,326 combos get here

Fold 66.5%Call 24.3%Raise 37.95bb 5.9%All-in 199.84bb 3.2%

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 2.5bb, BB 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

BTN opens 2.5bb, BB 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the big blind (BB) folds 66.5%, calls 24.3%, raises 37.95bb 5.9% and goes all-in 199.84bb 3.2%. Always call: 99, 22-77, AJs, KQs, QJs, JTs, 54s. Always raise 37.95bb: AA. Always all-in 199.84bb: AKo. Mixed: TT-KK, 88, AQs+, A7s-ATs, A2s-A5s, KTs-KJs, K6s-K7s, K4s, Q9s-QTs, J8s-J9s, T7s+, 97s+, 86s+, 75s+, 65s, 53s, 43s, AQo.

Always fold: A6s, K8s-K9s, K5s, K2s-K3s, Q5s-Q8s, Q2s, J3s-J7s, T5s-T6s, T3s, 95s-96s, 93s, 85s, 63s-64s, 52s, ATo-AJo, A4o-A7o, KTo+, K7o, QTo+, JTo, T8o+
Always call: 99, 22-77, AJs, KQs, QJs, JTs, 54s
Always raise 37.95bb: AA
Always all-in 199.84bb: AKo
Mixed: TT-KK, 88, AQs+, A7s-ATs, A2s-A5s, KTs-KJs, K6s-K7s, K4s, Q9s-QTs, J8s-J9s, T7s+, 97s+, 86s+, 75s+, 65s, 53s, 43s, AQo

Settings: 4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.