PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN iso raise 2.5bb

SB vs BTN iso raise 2.5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO limps, BTN isolates to 2.5bb · Small 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

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

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 5.64bbYour cards?

0.5bb

1bb

2.5bb

Tap your two cards.

Small blind's range

1,326 of 1,326 combos get here

Fold 86.8%Call 7.9%Raise 5/7.5bb 5.3%

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

What is the GTO play for the small blind (SB) when CO limps, BTN isolates to 2.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

CO limps, BTN isolates to 2.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the small blind (SB) folds 86.8%, calls 7.9% and raises 5/7.5bb 5.3%. Always call: J9s, AQo. Always raise 5/7.5bb: AA, AQs. Mixed: 33-KK, AKs, A2s-AJs, KTs+, K5s-K6s, QTs+, JTs, 97s+, 76s, 65s, AKo, AJo, KQo.

Always fold: 22, K7s-K9s, K2s-K4s, Q2s-Q9s, J2s-J8s, T2s+, 92s-96s, 82s+, 72s-75s, 62s-64s, 52s+, 42s+, 32s, A2o-ATo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: J9s, AQo
Always raise 5/7.5bb: AA, AQs
Mixed: 33-KK, AKs, A2s-AJs, KTs+, K5s-K6s, QTs+, JTs, 97s+, 76s, 65s, AKo, AJo, KQo

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.

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.